Expressions.java
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com.espertech.esper.client.soda |
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Esper |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| DECL_COMMENTS | Comments in declarations |  |
| PARAMS | Number of formal parameter declarations | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| FUNCTIONS | Number of function declarations | |
| SIZE | Size of the file in bytes | |
| RETURNS | Number of return points from functions | |
| LINES | Number of lines in the source file | |
| BLOCKS | Number of blocks | |
| CYCLOMATIC | Cyclomatic complexity | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| LOC | Lines of code | |
| OPERANDS | Number of operands | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| OPERATORS | Number of operators | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| ELOC | Effective lines of code | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| WHITESPACE | Number of whitespace lines | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LINE_COMMENT | Number of line comments | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| COMPARISONS | Number of comparison operators | |
| EXITS | Procedure exits | |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0044 | JAVA0044 Serializable class with no instance variables | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/**************************************************************************************
* Copyright (C) 2006 Esper Team. All rights reserved. *
* http://esper.codehaus.org *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package com.espertech.esper.client.soda;
import com.espertech.esper.type.BitWiseOpEnum;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* Convenience factory for creating {@link Expression} instances.
* <p>
* Provides quick-access methods to create all possible expressions and provides typical parameter lists to each.
* <p>
* Note that only the typical parameter lists are provided and expressions can allow adding
* additional parameters.
* <p>
* Many expressions, for example logical AND and OR (conjunction and disjunction), allow
* adding an unlimited number of additional sub-expressions to an expression. For those expressions
* there are additional add methods provided.
*/
public class Expressions implements Serializable
{
private static final long serialVersionUID = 0L;
/**
* Current system time supplies internal-timer provided time or
* the time provided by external timer events.
* @return expression
*/
public static CurrentTimestampExpression currentTimestamp()
{
return new CurrentTimestampExpression();
}
/**
* Exists-function for use with dynamic properties to test property existence.
* @param propertyName name of the property to test whether it exists or not
* @return expression
*/
public static PropertyExistsExpression existsProperty(String propertyName)
{
return new PropertyExistsExpression(propertyName);
}
/**
* Cast function, casts the result on an expression to the desired type, or
* returns null if the type cannot be casted to the type.
* <p>
* The list of types can include fully-qualified class names plus any of the
* Java primitive type names: byte, char, short, int, long, float, double, boolean.
* Alternatively to "java.lang.String" the simple "string" is also permitted.
* <p>
* Type checks include all superclasses and interfaces of the value returned by the expression.
* @param expression returns the value to cast
* @param typeName is type to cast to
* @return expression
*/
public static CastExpression cast(Expression expression, String typeName)
{
return new CastExpression(expression, typeName);
}
/**
* Cast function, casts the result on an expression to the desired type, or
* returns null if the type cannot be casted to the type.
* <p>
* The list of types can include fully-qualified class names plus any of the
* Java primitive type names: byte, char, short, int, long, float, double, boolean.
* Alternatively to "java.lang.String" the simple "string" is also permitted.
* <p>
* Type checks include all superclasses and interfaces of the value returned by the expression.
* @param propertyName name of the property supplying the value to cast
* @param typeName is type to cast to
* @return expression
*/
public static CastExpression cast(String propertyName, String typeName)
{
return new CastExpression(getPropExpr(propertyName), typeName);
}
/**
* Instance-of function, tests if the type of the return value of an expression is in a list of types.
* <p>
* The list of types can include fully-qualified class names plus any of the
* Java primitive type names: byte, char, short, int, long, float, double, boolean.
* Alternatively to "java.lang.String" the simple "string" is also permitted.
* <p>
* Type checks include all superclasses and interfaces of the value returned by the expression.
* @param expression returns the value to test whether the type returned is any of the is the function name
* @param typeName is one type to check for
* @param typeNames is optional additional types to check for in a list
* @return expression
*/
public static InstanceOfExpression instanceOf(Expression expression, String typeName, String...typeNames)
{
return new InstanceOfExpression(expression, typeName, typeNames);
}
/**
* Instance-of function, tests if the type of the return value of a property is in a list of types.
* <p>
* Useful with dynamic (unchecked) properties to check the type of property returned.
* <p>
* The list of types can include fully-qualified class names plus any of the
* Java primitive type names: byte, char, short, int, long, float, double, boolean.
* Alternatively to "java.lang.String" the simple "string" is also permitted.
* <p>
* Type checks include all superclasses and interfaces of the value returned by the expression.
* @param propertyName name of the property supplying the value to test
* @param typeName is one type to check for
* @param typeNames is optional additional types to check for in a list
* @return expression
*/
public static InstanceOfExpression instanceOf(String propertyName, String typeName, String...typeNames)
{
return new InstanceOfExpression(getPropExpr(propertyName), typeName, typeNames);
}
/**
* Plug-in aggregation function.
* @param functionName is the function name
* @param parameter provides the values to aggregate
* @return expression
*/
public static PlugInProjectionExpression plugInAggregation(String functionName, Expression parameter)
{
return new PlugInProjectionExpression(functionName, false, parameter);
}
/**
* Regular expression.
* @param left returns the values to match
* @param right returns the value to match against
* @return expression
*/
public static RegExpExpression regexp(Expression left, Expression right)
{
return new RegExpExpression(left, right);
}
/**
* Regular expression.
* @param left returns the values to match
* @param right returns the value to match against
* @param escape is the escape character
* @return expression
*/
public static RegExpExpression regexp(Expression left, Expression right, String escape)
{
return new RegExpExpression(left, right, new ConstantExpression(escape));
}
/**
* Regular expression.
* @param property the name of the property returning values to match
* @param regExExpression a regular expression to match against
* @return expression
*/
public static RegExpExpression regexp(String property, String regExExpression)
{
return new RegExpExpression(getPropExpr(property), new ConstantExpression(regExExpression));
}
/**
* Regular expression.
* @param property the name of the property returning values to match
* @param regExExpression a regular expression to match against
* @param escape is the escape character
* @return expression
*/
public static RegExpExpression regexp(String property, String regExExpression, String escape)
{
return new RegExpExpression(getPropExpr(property), new ConstantExpression(regExExpression), new ConstantExpression(escape));
}
/**
* Array expression, representing the syntax of "{1, 2, 3}" returning an integer array of 3 elements valued 1, 2, 3.
* @return expression
*/
public static ArrayExpression array()
{
return new ArrayExpression();
}
/**
* Bitwise (binary) AND.
* @return expression
*/
public static BitwiseOpExpression binaryAnd()
{
return new BitwiseOpExpression(BitWiseOpEnum.BAND);
}
/**
* Bitwise (binary) OR.
* @return expression
*/
public static BitwiseOpExpression binaryOr()
{
return new BitwiseOpExpression(BitWiseOpEnum.BOR);
}
/**
* Bitwise (binary) XOR.
* @return expression
*/
public static BitwiseOpExpression binaryXor()
{
return new BitwiseOpExpression(BitWiseOpEnum.BXOR);
}
/**
* Minimum value per-row function (not aggregating).
* @param propertyOne the name of a first property to compare
* @param propertyTwo the name of a second property to compare
* @param moreProperties optional additional properties to compare
* @return expression
*/
public static MinRowExpression min(String propertyOne, String propertyTwo, String...moreProperties)
{
return new MinRowExpression(propertyOne, propertyTwo, moreProperties);
}
/**
* Minimum value per-row function (not aggregating).
* @param exprOne returns the first value to compare
* @param exprTwo returns the second value to compare
* @param moreExpressions optional additional values to compare
* @return expression
*/
public static MinRowExpression min(Expression exprOne, Expression exprTwo, Expression...moreExpressions)
{
return new MinRowExpression(exprOne, exprTwo, moreExpressions);
}
/**
* Maximum value per-row function (not aggregating).
* @param propertyOne the name of a first property to compare
* @param propertyTwo the name of a second property to compare
* @param moreProperties optional additional properties to compare
* @return expression
*/
public static MaxRowExpression max(String propertyOne, String propertyTwo, String...moreProperties)
{
return new MaxRowExpression(propertyOne, propertyTwo, moreProperties);
}
/**
* Maximum value per-row function (not aggregating).
* @param exprOne returns the first value to compare
* @param exprTwo returns the second value to compare
* @param moreExpressions optional additional values to compare
* @return expression
*/
public static MaxRowExpression max(Expression exprOne, Expression exprTwo, Expression...moreExpressions)
{
return new MaxRowExpression(exprOne, exprTwo, moreExpressions);
}
/**
* Coalesce.
* @param propertyOne name of the first property returning value to coealesce
* @param propertyTwo name of the second property returning value to coealesce
* @param moreProperties name of the optional additional properties returning values to coealesce
* @return expression
*/
public static CoalesceExpression coalesce(String propertyOne, String propertyTwo, String...moreProperties)
{
return new CoalesceExpression(propertyOne, propertyTwo, moreProperties);
}
/**
* Coalesce.
* @param exprOne returns value to coalesce
* @param exprTwo returns value to coalesce
* @param moreExpressions returning optional additional values to coalesce
* @return expression
*/
public static CoalesceExpression coalesce(Expression exprOne, Expression exprTwo, Expression...moreExpressions)
{
return new CoalesceExpression(exprOne, exprTwo, moreExpressions);
}
/**
* Constant.
* @param value is the constant value
* @return expression
*/
public static ConstantExpression constant(Object value)
{
return new ConstantExpression(value);
}
/**
* Case-when-then expression.
* @return expression
*/
public static CaseWhenThenExpression caseWhenThen()
{
return new CaseWhenThenExpression();
}
/**
* Case-switch expresssion.
* @param valueToSwitchOn provides the switch value
* @return expression
*/
public static CaseSwitchExpression caseSwitch(Expression valueToSwitchOn)
{
return new CaseSwitchExpression(valueToSwitchOn);
}
/**
* Case-switch expresssion.
* @param propertyName the name of the property that provides the switch value
* @return expression
*/
public static CaseSwitchExpression caseSwitch(String propertyName)
{
return new CaseSwitchExpression(getPropExpr(propertyName));
}
/**
* In-expression that is equivalent to the syntax of "property in (value, value, ... value)".
* @param property is the name of the property
* @param values are the constants to check against
* @return expression
*/
public static InExpression in(String property, Object ...values)
{
return new InExpression(getPropExpr(property), false, values);
}
/**
* Not-In-expression that is equivalent to the syntax of "property not in (value, value, ... value)".
* @param property is the name of the property
* @param values are the constants to check against
* @return expression
*/
public static InExpression notIn(String property, Object ...values)
{
return new InExpression(getPropExpr(property), true, values);
}
/**
* In-expression that is equivalent to the syntax of "property in (value, value, ... value)".
* @param value provides values to match
* @param set are expressons that provide match-against values
* @return expression
*/
public static InExpression in(Expression value, Expression ...set)
{
return new InExpression(value, false, set);
}
/**
* Not-In-expression that is equivalent to the syntax of "property not in (value, value, ... value)".
* @param value provides values to match
* @param set are expressons that provide match-against values
* @return expression
*/
public static InExpression notIn(Expression value, Expression ...set)
{
return new InExpression(value, true, set);
}
/**
* Not expression negates the sub-expression to the not which is expected to return boolean-typed values.
* @param inner is the sub-expression
* @return expression
*/
public static NotExpression not(Expression inner)
{
return new NotExpression(inner);
}
/**
* Static method invocation.
* @param className the name of the class to invoke a method on
* @param method the name of the method to invoke
* @param parameters zero, one or more constants that are the parameters to the static method
* @return expression
*/
public static StaticMethodExpression staticMethod(String className, String method, Object ...parameters)
{
return new StaticMethodExpression(className, method, parameters);
}
/**
* Static method invocation.
* @param className the name of the class to invoke a method on
* @param method the name of the method to invoke
* @param parameters zero, one or more expressions that provide parameters to the static method
* @return expression
*/
public static StaticMethodExpression staticMethod(String className, String method, Expression ...parameters)
{
return new StaticMethodExpression(className, method, parameters);
}
/**
* Prior function.
* @param index the numeric index of the prior event
* @param property the name of the property to obtain the value for
* @return expression
*/
public static PriorExpression prior(int index, String property)
{
return new PriorExpression(index, property);
}
/**
* Previous function.
* @param expression provides the numeric index of the previous event
* @param property the name of the property to obtain the value for
* @return expression
*/
public static PreviousExpression previous(Expression expression, String property)
{
return new PreviousExpression(expression, property);
}
/**
* Previous function.
* @param index the numeric index of the previous event
* @param property the name of the property to obtain the value for
* @return expression
*/
public static PreviousExpression previous(int index, String property)
{
return new PreviousExpression(index, property);
}
/**
* Between.
* @param property the name of the property supplying data points.
* @param lowBoundaryProperty the name of the property supplying lower boundary.
* @param highBoundaryProperty the name of the property supplying upper boundary.
* @return expression
*/
public static BetweenExpression betweenProperty(String property, String lowBoundaryProperty, String highBoundaryProperty)
{
return new BetweenExpression(getPropExpr(property), getPropExpr(lowBoundaryProperty), getPropExpr(highBoundaryProperty));
}
/**
* Between.
* @param property the name of the property that returns the datapoint to check range
* @param lowBoundary constant indicating the lower boundary
* @param highBoundary constant indicating the upper boundary
* @return expression
*/
public static BetweenExpression between(String property, Object lowBoundary, Object highBoundary)
{
return new BetweenExpression(getPropExpr(property), new ConstantExpression(lowBoundary), new ConstantExpression(highBoundary));
}
/**
* Between.
* @param datapoint returns the datapoint to check range
* @param lowBoundary returns values for the lower boundary
* @param highBoundary returns values for the upper boundary
* @return expression
*/
public static BetweenExpression between(Expression datapoint, Expression lowBoundary, Expression highBoundary)
{
return new BetweenExpression(datapoint, lowBoundary, highBoundary);
}
/**
* Between (or range).
* @param datapoint returns the datapoint to check range
* @param lowBoundary returns values for the lower boundary
* @param highBoundary returns values for the upper boundary
* @param isLowIncluded true to indicate lower boundary itself is included in the range
* @param isHighIncluded true to indicate upper boundary itself is included in the range
* @return expression
*/
public static BetweenExpression range(Expression datapoint, Expression lowBoundary, Expression highBoundary, boolean isLowIncluded, boolean isHighIncluded)
{
return new BetweenExpression(datapoint, lowBoundary, highBoundary, isLowIncluded, isHighIncluded, false);
}
/**
* Logical OR disjunction. Use add methods to add expressions.
* @return expression
*/
public static Disjunction or()
{
return new Disjunction();
}
/**
* Logical OR disjunction.
* @param first an expression returning values to junction
* @param second an expression returning values to junction
* @param expressions an optional list of expressions returning values to junction
* @return expression
*/
public static Disjunction or(Expression first, Expression second, Expression ...expressions)
{
return new Disjunction(first, second, expressions);
}
/**
* Logical AND conjunction. Use add methods to add expressions.
* @return expression
*/
public static Conjunction and()
{
return new Conjunction();
}
/**
* Logical AND conjunction.
* @param first an expression returning values to junction
* @param second an expression returning values to junction
* @param expressions an optional list of expressions returning values to junction
* @return expression
*/
public static Conjunction and(Expression first, Expression second, Expression ...expressions)
{
return new Conjunction(first, second, expressions);
}
/**
* Greater-or-equal between a property and a constant.
* @param propertyName the name of the property providing left hand side values
* @param value is the constant to compare
* @return expression
*/
public static RelationalOpExpression ge(String propertyName, Object value)
{
return new RelationalOpExpression(getPropExpr(propertyName)
, ">=", new ConstantExpression(value));
}
/**
* Greater-or-equals between expression results.
* @param left the expression providing left hand side values
* @param right the expression providing right hand side values
* @return expression
*/
public static RelationalOpExpression ge(Expression left, Expression right)
{
return new RelationalOpExpression(left, ">=", right);
}
/**
* Greater-or-equal between properties.
* @param propertyLeft the name of the property providing left hand side values
* @param propertyRight the name of the property providing right hand side values
* @return expression
*/
public static RelationalOpExpression geProperty(String propertyLeft, String propertyRight)
{
return new RelationalOpExpression(getPropExpr(propertyLeft)
, ">=", new PropertyValueExpression(propertyRight));
}
/**
* Greater-then between a property and a constant.
* @param propertyName the name of the property providing left hand side values
* @param value is the constant to compare
* @return expression
*/
public static RelationalOpExpression gt(String propertyName, Object value)
{
return new RelationalOpExpression(getPropExpr(propertyName)
, ">", new ConstantExpression(value));
}
/**
* Greater-then between expression results.
* @param left the expression providing left hand side values
* @param right the expression providing right hand side values
* @return expression
*/
public static RelationalOpExpression gt(Expression left, Expression right)
{
return new RelationalOpExpression(left, ">", right);
}
/**
* Greater-then between properties.
* @param propertyLeft the name of the property providing left hand side values
* @param propertyRight the name of the property providing right hand side values
* @return expression
*/
public static RelationalOpExpression gtProperty(String propertyLeft, String propertyRight)
{
return new RelationalOpExpression(getPropExpr(propertyLeft)
, ">", new PropertyValueExpression(propertyRight));
}
/**
* Less-or-equals between a property and a constant.
* @param propertyName the name of the property providing left hand side values
* @param value is the constant to compare
* @return expression
*/
public static RelationalOpExpression le(String propertyName, Object value)
{
return new RelationalOpExpression(getPropExpr(propertyName)
, "<=", new ConstantExpression(value));
}
/**
* Less-or-equal between properties.
* @param propertyLeft the name of the property providing left hand side values
* @param propertyRight the name of the property providing right hand side values
* @return expression
*/
public static RelationalOpExpression leProperty(String propertyLeft, String propertyRight)
{
return new RelationalOpExpression(getPropExpr(propertyLeft)
, "<=", new PropertyValueExpression(propertyRight));
}
/**
* Less-or-equal between expression results.
* @param left the expression providing left hand side values
* @param right the expression providing right hand side values
* @return expression
*/
public static RelationalOpExpression le(Expression left, Expression right)
{
return new RelationalOpExpression(left, "<=", right);
}
/**
* Less-then between a property and a constant.
* @param propertyName the name of the property providing left hand side values
* @param value is the constant to compare
* @return expression
*/
public static RelationalOpExpression lt(String propertyName, Object value)
{
return new RelationalOpExpression(getPropExpr(propertyName)
, "<", new ConstantExpression(value));
}
/**
* Less-then between properties.
* @param propertyLeft the name of the property providing left hand side values
* @param propertyRight the name of the property providing right hand side values
* @return expression
*/
public static RelationalOpExpression ltProperty(String propertyLeft, String propertyRight)
{
return new RelationalOpExpression(getPropExpr(propertyLeft)
, "<", new PropertyValueExpression(propertyRight));
}
/**
* Less-then between expression results.
* @param left the expression providing left hand side values
* @param right the expression providing right hand side values
* @return expression
*/
public static RelationalOpExpression lt(Expression left, Expression right)
{
return new RelationalOpExpression(left, "<", right);
}
/**
* Equals between a property and a constant.
* @param propertyName the name of the property providing left hand side values
* @param value is the constant to compare
* @return expression
*/
public static RelationalOpExpression eq(String propertyName, Object value)
{
return new RelationalOpExpression(getPropExpr(propertyName)
, "=", new ConstantExpression(value));
}
/**
* Equals between properties.
* @param propertyLeft the name of the property providing left hand side values
* @param propertyRight the name of the property providing right hand side values
* @return expression
*/
public static RelationalOpExpression eqProperty(String propertyLeft, String propertyRight)
{
return new RelationalOpExpression(getPropExpr(propertyLeft)
, "=", new PropertyValueExpression(propertyRight));
}
/**
* Equals between expression results.
* @param left the expression providing left hand side values
* @param right the expression providing right hand side values
* @return expression
*/
public static RelationalOpExpression eq(Expression left, Expression right)
{
return new RelationalOpExpression(left, "=", right);
}
/**
* Not-null test.
* @param property the name of the property supplying the value to check for null
* @return expression
*/
public static RelationalOpExpression isNotNull(String property)
{
return new RelationalOpExpression(getPropExpr(property), "!=", null);
}
/**
* Not-null test.
* @param expression supplies the value to check for null
* @return expression
*/
public static RelationalOpExpression isNotNull(Expression expression)
{
return new RelationalOpExpression(expression, "!=", null);
}
/**
* Property value.
* <p>
* An expression that returns the value of the named property.
* <p>
* Nested, indexed or mapped properties follow the documented sytnax.
* @param propertyName is the name of the property to return the value for.
* @return expression
*/
public static PropertyValueExpression property(String propertyName)
{
return getPropExpr(propertyName);
}
/**
* SQL-Like.
* @param propertyName the name of the property providing values to match
* @param value is the string to match against
* @return expression
*/
public static LikeExpression like(String propertyName, String value)
{
return new LikeExpression(getPropExpr(propertyName), new ConstantExpression(value));
}
/**
* SQL-Like.
* @param left provides value to match
* @param right provides string to match against
* @return expression
*/
public static LikeExpression like(Expression left, Expression right)
{
return new LikeExpression(left, right);
}
/**
* SQL-Like.
* @param propertyName the name of the property providing values to match
* @param value is the string to match against
* @param escape the escape character(s)
* @return expression
*/
public static LikeExpression like(String propertyName, Object value, String escape)
{
return new LikeExpression(getPropExpr(propertyName), new ConstantExpression(value), new ConstantExpression(escape));
}
/**
* SQL-Like.
* @param left provides value to match
* @param right provides string to match against
* @param escape the escape character(s)
* @return expression
*/
public static LikeExpression like(Expression left, Expression right, Expression escape)
{
return new LikeExpression(left, right, escape);
}
/**
* Average aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static AvgProjectionExpression avg(String propertyName)
{
return new AvgProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Average aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static AvgProjectionExpression avg(Expression expression)
{
return new AvgProjectionExpression(expression, false);
}
/**
* Average aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static AvgProjectionExpression avgDistinct(String propertyName)
{
return new AvgProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Average aggregation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static AvgProjectionExpression avgDistinct(Expression expression)
{
return new AvgProjectionExpression(expression, true);
}
/**
* Median aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MedianProjectionExpression median(String propertyName)
{
return new MedianProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Median aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MedianProjectionExpression median(Expression expression)
{
return new MedianProjectionExpression(expression, false);
}
/**
* Median aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MedianProjectionExpression medianDistinct(String propertyName)
{
return new MedianProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Median aggregation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MedianProjectionExpression medianDistinct(Expression expression)
{
return new MedianProjectionExpression(expression, true);
}
/**
* Standard deviation aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static StddevProjectionExpression stddev(String propertyName)
{
return new StddevProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Standard deviation aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static StddevProjectionExpression stddev(Expression expression)
{
return new StddevProjectionExpression(expression, false);
}
/**
* Standard deviation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static StddevProjectionExpression stddevDistinct(String propertyName)
{
return new StddevProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Standard deviation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static StddevProjectionExpression stddevDistinct(Expression expression)
{
return new StddevProjectionExpression(expression, true);
}
/**
* Mean deviation aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static AvedevProjectionExpression avedev(String propertyName)
{
return new AvedevProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Mean deviation aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static AvedevProjectionExpression avedev(Expression expression)
{
return new AvedevProjectionExpression(expression, false);
}
/**
* Mean deviation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static AvedevProjectionExpression avedevDistinct(String propertyName)
{
return new AvedevProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Mean deviation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static AvedevProjectionExpression avedevDistinct(Expression expression)
{
return new AvedevProjectionExpression(expression, false);
}
/**
* Sum aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static SumProjectionExpression sum(String propertyName)
{
return new SumProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Sum aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static SumProjectionExpression sum(Expression expression)
{
return new SumProjectionExpression(expression, false);
}
/**
* Sum aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static SumProjectionExpression sumDistinct(String propertyName)
{
return new SumProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Sum aggregation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static SumProjectionExpression sumDistinct(Expression expression)
{
return new SumProjectionExpression(expression, true);
}
/**
* Count aggregation function not counting values, equivalent to "count(*)".
* @return expression
*/
public static CountStarProjectionExpression countStar()
{
return new CountStarProjectionExpression();
}
/**
* Count aggregation function.
* @param propertyName name of the property providing the values to count.
* @return expression
*/
public static CountProjectionExpression count(String propertyName)
{
return new CountProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Count aggregation function.
* @param expression provides the values to count.
* @return expression
*/
public static CountProjectionExpression count(Expression expression)
{
return new CountProjectionExpression(expression, false);
}
/**
* Count aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to count.
* @return expression
*/
public static CountProjectionExpression countDistinct(String propertyName)
{
return new CountProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Count aggregation function considering distinct values only.
* @param expression provides the values to count.
* @return expression
*/
public static CountProjectionExpression countDistinct(Expression expression)
{
return new CountProjectionExpression(expression, true);
}
/**
* Minimum aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MinProjectionExpression min(String propertyName)
{
return new MinProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Minimum aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MinProjectionExpression min(Expression expression)
{
return new MinProjectionExpression(expression, false);
}
/**
* Minimum aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MinProjectionExpression minDistinct(String propertyName)
{
return new MinProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Minimum aggregation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MinProjectionExpression minDistinct(Expression expression)
{
return new MinProjectionExpression(expression, true);
}
/**
* Maximum aggregation function.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MaxProjectionExpression max(String propertyName)
{
return new MaxProjectionExpression(getPropExpr(propertyName), false);
}
/**
* Maximum aggregation function.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MaxProjectionExpression max(Expression expression)
{
return new MaxProjectionExpression(expression, false);
}
/**
* Maximum aggregation function considering distinct values only.
* @param propertyName name of the property providing the values to aggregate.
* @return expression
*/
public static MaxProjectionExpression maxDistinct(String propertyName)
{
return new MaxProjectionExpression(getPropExpr(propertyName), true);
}
/**
* Maximum aggregation function considering distinct values only.
* @param expression provides the values to aggregate.
* @return expression
*/
public static MaxProjectionExpression maxDistinct(Expression expression)
{
return new MaxProjectionExpression(expression, true);
}
/**
* Modulo.
* @param left the expression providing left hand values
* @param right the expression providing right hand values
* @return expression
*/
public static ArithmaticExpression modulo(Expression left, Expression right)
{
return new ArithmaticExpression(left, "%", right);
}
/**
* Modulo.
* @param propertyLeft the name of the property providing left hand values
* @param propertyRight the name of the property providing right hand values
* @return expression
*/
public static ArithmaticExpression modulo(String propertyLeft, String propertyRight)
{
return new ArithmaticExpression(new PropertyValueExpression(propertyLeft), "%", new PropertyValueExpression(propertyRight));
}
/**
* Subtraction.
* @param left the expression providing left hand values
* @param right the expression providing right hand values
* @return expression
*/
public static ArithmaticExpression minus(Expression left, Expression right)
{
return new ArithmaticExpression(left, "-", right);
}
/**
* Subtraction.
* @param propertyLeft the name of the property providing left hand values
* @param propertyRight the name of the property providing right hand values
* @return expression
*/
public static ArithmaticExpression minus(String propertyLeft, String propertyRight)
{
return new ArithmaticExpression(new PropertyValueExpression(propertyLeft), "-", new PropertyValueExpression(propertyRight));
}
/**
* Addition.
* @param left the expression providing left hand values
* @param right the expression providing right hand values
* @return expression
*/
public static ArithmaticExpression plus(Expression left, Expression right)
{
return new ArithmaticExpression(left, "+", right);
}
/**
* Addition.
* @param propertyLeft the name of the property providing left hand values
* @param propertyRight the name of the property providing right hand values
* @return expression
*/
public static ArithmaticExpression plus(String propertyLeft, String propertyRight)
{
return new ArithmaticExpression(new PropertyValueExpression(propertyLeft), "+", new PropertyValueExpression(propertyRight));
}
/**
* Multiplication.
* @param left the expression providing left hand values
* @param right the expression providing right hand values
* @return expression
*/
public static ArithmaticExpression multiply(Expression left, Expression right)
{
return new ArithmaticExpression(left, "*", right);
}
/**
* Multiplication.
* @param propertyLeft the name of the property providing left hand values
* @param propertyRight the name of the property providing right hand values
* @return expression
*/
public static ArithmaticExpression multiply(String propertyLeft, String propertyRight)
{
return new ArithmaticExpression(new PropertyValueExpression(propertyLeft), "*", new PropertyValueExpression(propertyRight));
}
/**
* Division.
* @param left the expression providing left hand values
* @param right the expression providing right hand values
* @return expression
*/
public static ArithmaticExpression divide(Expression left, Expression right)
{
return new ArithmaticExpression(left, "/", right);
}
/**
* Division.
* @param propertyLeft the name of the property providing left hand values
* @param propertyRight the name of the property providing right hand values
* @return expression
*/
public static ArithmaticExpression divide(String propertyLeft, String propertyRight)
{
return new ArithmaticExpression(new PropertyValueExpression(propertyLeft), "/", new PropertyValueExpression(propertyRight));
}
/**
* Concatenation.
* @param property the name of property returning values to concatenate
* @param properties the names of additional properties returning values to concatenate
* @return expression
*/
public static ConcatExpression concat(String property, String ...properties)
{
ConcatExpression concat = new ConcatExpression();
concat.getChildren().add(new PropertyValueExpression(property));
concat.getChildren().addAll(toPropertyExpressions(properties));
return concat;
}
/**
* Subquery.
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryExpression subquery(EPStatementObjectModel model)
{
return new SubqueryExpression(model);
}
/**
* Subquery with in-clause, represents the syntax of "value in (select ... from ...)".
* @param property is the name of the property that returns the value to match against the values returned by the lookup
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryInExpression subqueryIn(String property, EPStatementObjectModel model)
{
return new SubqueryInExpression(getPropExpr(property), model, false);
}
/**
* Subquery with not-in-clause, represents the syntax of "value not in (select ... from ...)".
* @param property is the name of the property that returns the value to match against the values returned by the lookup
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryInExpression subqueryNotIn(String property, EPStatementObjectModel model)
{
return new SubqueryInExpression(getPropExpr(property), model, true);
}
/**
* Subquery with exists-clause, represents the syntax of "select * from ... where exists (select ... from ...)".
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryExistsExpression subqueryExists(EPStatementObjectModel model)
{
return new SubqueryExistsExpression(model);
}
/**
* Subquery with in-clause, represents the syntax of "value in (select ... from ...)".
* @param expression returns the value to match against the values returned by the lookup
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryInExpression subqueryIn(Expression expression, EPStatementObjectModel model)
{
return new SubqueryInExpression(expression, model, false);
}
/**
* Subquery with not-in-clause, represents the syntax of "value not in (select ... from ...)".
* @param expression returns the value to match against the values returned by the lookup
* @param model is the object model of the lookup
* @return expression
*/
public static SubqueryInExpression subqueryNotIn(Expression expression, EPStatementObjectModel model)
{
return new SubqueryInExpression(expression, model, true);
}
/**
* Returns a list of expressions returning property values for the property names passed in.
* @param properties is a list of property names
* @return list of property value expressions
*/
protected static List<PropertyValueExpression> toPropertyExpressions(String ...properties)
{
List<PropertyValueExpression> expr = new ArrayList<PropertyValueExpression>();
for (String property : properties)
{
expr.add(getPropExpr(property));
}
return expr;
}
/**
* Returns an expression returning the propertyName value for the propertyName name passed in.
* @param propertyName the name of the property returning property values
* @return expression
*/
protected static PropertyValueExpression getPropExpr(String propertyName)
{
return new PropertyValueExpression(propertyName);
}
}
The table below shows all metrics for Expressions.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 118.00 | Number of blocks | |
| BLOCK_COMMENT | 0.00 | Number of block comment lines | |
| COMMENTS | 714.00 | Comment lines | |
| COMMENT_DENSITY | 2.78 | Comment density | |
| COMPARISONS | 0.00 | Number of comparison operators | |
| CYCLOMATIC | 117.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 119.00 | Comments in declarations | |
| DOC_COMMENT | 714.00 | Number of javadoc comment lines | |
| ELOC | 257.00 | Effective lines of code | |
| EXEC_COMMENTS | 0.00 | Comments in executable code | |
| EXITS | 6.00 | Procedure exits | |
| FUNCTIONS | 117.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 41.18 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 311.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 1.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 0.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 1.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 2.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 0.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 0.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 1329.00 | Number of lines in the source file | |
| LINE_COMMENT | 0.00 | Number of line comments | |
| LOC | 495.00 | Lines of code | |
| LOGICAL_LINES | 128.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 2.00 | Maximum nesting depth | |
| OPERANDS | 1079.00 | Number of operands | |
| OPERATORS | 1844.00 | Number of operators | |
| PARAMS | 194.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2923.00 | Halstead program length | |
| PROGRAM_VOCAB | 423.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 117.00 | Number of return points from functions | |
| SIZE | 49027.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 393.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 30.00 | Number of unique operators | |
| WHITESPACE | 120.00 | Number of whitespace lines | |