BasicQuery.java
| Index Score | ||
|---|---|---|
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org.apache.slide.search.basic |
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Jakarta Slide |
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 |  |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| SIZE | Size of the file in bytes | |
| COMPARISONS | Number of comparison operators | |
| LINE_COMMENT | Number of line comments | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| CYCLOMATIC | Cyclomatic complexity | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| LINES | Number of lines in the source file | |
/*
* $Header$
* $Revision: 207541 $
* $Date: 2004-07-28 05:48:34 -0400 (Wed, 28 Jul 2004) $
*
* ====================================================================
*
* Copyright 1999-2002 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.slide.search.basic;
import org.apache.slide.common.PropertyParseException;
import org.apache.slide.common.RequestedProperties;
import org.apache.slide.common.RequestedPropertiesImpl;
import org.apache.slide.common.ServiceAccessException;
import org.apache.slide.common.Uri;
import org.apache.slide.search.BadQueryException;
import org.apache.slide.search.InvalidScopeException;
import org.apache.slide.search.PropertyProvider;
import org.apache.slide.search.QueryScope;
import org.apache.slide.search.SearchQuery;
import org.apache.slide.search.SearchQueryResult;
import org.apache.slide.search.SearchToken;
import org.apache.slide.search.SlideUri;
import org.apache.slide.store.AbstractStore;
import org.jdom.Element;
import org.jdom.Namespace;
/**
* A BasicQuery represents the query and is able to deliver a
* SearchQueryResult using the execute method. It serves as a base class for
* store specific implementations. It hosts the information about the SELECT,
* FROM, WHERE, ORDERBY and LIMIT. It also holds a tree of
* BasicSearchExpressions.
*
* @version $Revision: 207541 $
*/
public abstract class BasicQuery extends SearchQuery implements IBasicQuery {
/**
* Message of a BadQueryException that is thrown if the query element
* is <code>null</code>.
*/
public static final String NO_QUERY_ELEMENT = "No query element";
/**
* The provider which delivers the expression compiler to use.
*/
protected IBasicExpressionCompilerProvider expressionCompilerProvider = null;
/**
* Message of a BadQueryException that is thrown if the query element
* does not contain a <select> element.
*/
public static final String SELECT_ELEMENT_MISSING = "Required element <select> not supplied";
/**
* Message of a BadQueryException that is thrown if the query element
* does not contain a <from> element.
*/
public static final String FROM_ELEMENT_MISSING = "Required element <from> not supplied";
/**
* Message of a BadQueryException that is thrown if the query element
* neither contains a <prop> nor a <allprop> element.
*/
public static final String PROP_OR_ALLPROP_ELEMENT_MISSING = "Required element <prop> or <allprop> not supplied";
private IBasicExpressionFactory contentExpressionFactory;
private IBasicExpressionFactory propertiesExpressionFactory;
/** the element describing this query */
protected Element queryElement;
/** the namespace for this query */
protected Namespace namespace;
/** the scope of this query, <FROM> */
protected QueryScope queryScope;
/** the element describing the WHERE clauise */
protected Element whereElement;
/** List of requested properties, <SELECT> */
protected RequestedProperties requestedProperties;
/** <LIMIT> */
protected int limit;
/** ORDER BY */
protected OrderBy orderBy;
/** indicates, if a limit is defined */
protected boolean limitDefined = false;
/** The store for this query, may be used to access store parameters */
protected AbstractStore store;
/** the top level expression in the <WHERE> clause */
protected IBasicExpression rootExpression;
/** used to get the slidePath */
protected SlideUri slideUri;
/** The provider for the properties */
protected PropertyProvider propertyProvider;
protected BasicQuery () {}
protected BasicQuery (SearchToken searchToken) {
init(searchToken);
}
public void init (SearchToken token) {
this.searchToken = token;
slideUri = searchToken.getSlideContext();
this.expressionCompilerProvider = new ExpressionCompilerProvider();
}
/**
* returns the factory for content expressions. May be null, if store does
* not provide search capabilities and no indexer is defined.
*
* @return an IBasicExpressionFactory
*
*/
public IBasicExpressionFactory getContentExpressionFactory ()
{
if (contentExpressionFactory == null)
contentExpressionFactory =
store.getContentIndexer().getBasicExpressionFactory();
return contentExpressionFactory;
}
/**
* returns the factory for property expressions. May be null, if store does
* not provide search capabilities and no indexer is defined.
*
* @return an IBasicExpressionFactory
*
*/
public IBasicExpressionFactory getPropertiesExpressionFactory ()
{
propertiesExpressionFactory =
store.getPropertiesIndexer().getBasicExpressionFactory();
return propertiesExpressionFactory;
}
/**
* Method getStore
*
* @return an AbstractStore
*
*/
public AbstractStore getStore () {
return store;
}
/**
* Method getSlidePath
*
* @return a String
*
* @throws InvalidScopeException
*
*/
public String getSlidePath () throws InvalidScopeException {
return slideUri.getSlidePath (queryScope.getHref());
}
/**
* Method getSearchToken
*
* @return a SearchToken
*
*/
public SearchToken getSearchToken (){
return searchToken;
}
/**
* Method getPropertyProvider
*
* @return a PropertyProvider
*
*/
public PropertyProvider getPropertyProvider () {
return propertyProvider;
}
/**
* Builds the internal structure from the JDOM tree. Concrete implementations
* may use parseQueryElementWithoutExpression to create most of the
* objects describing the query.
*
* @param basicSearchElement the (root) expression Element.
* @param propertyProvider the PropertyProvider to use (may be
* <code>null</code>).
*
* @throws BadQueryException
*/
public void parseQueryElement (Element basicSearchElement, PropertyProvider propertyProvider) throws BadQueryException {
queryScope = getScope(basicSearchElement);
this.propertyProvider = propertyProvider;
// might be null in testsuite
if (searchToken.getNamespace() != null) {
// Uri uri = new Uri (searchToken.getNamespace(), slideUri.getSlidePath(queryScope.getHref()));
Uri uri = searchToken.getNamespace().getUri(this.getSearchToken().getSlideToken(), slideUri.getSlidePath(queryScope.getHref()));
store = (AbstractStore)uri.getStore();
}
parseQuery(basicSearchElement, propertyProvider);
}
/**
* builds the internal structure from the JDOM tree. Concrete implementations
* may use {@link #parseQueryWithoutExpression parseQueryWithoutExpression}
* to create most of the objects describing the query.
*
* @param basicSearchElement the (root) expression Element.
* @param propertyProvider the PropertyProvider to use (may be
* <code>null</code>).
*
* @throws BadQueryException
*/
public abstract void parseQuery (Element basicSearchElement, PropertyProvider propertyProvider)
throws BadQueryException;
/**
* Executes a request. A store specific implementation should overwrite
* this to optimize the execution.
*
* @return a SearchQueryResult
*
* @throws ServiceAccessException
*
*/
public abstract SearchQueryResult execute () throws ServiceAccessException;
/**
* builds the internal structure from the JDOM tree. It may be used by the
* concrete implementation of BasicQuery. It does NOT create the tree of
* Expressions. This must be done in the specific implementation.
*
* @param basicSearchElement an Element
*
* @throws BadQueryException
*/
protected void parseQueryWithoutExpression (Element basicSearchElement) throws BadQueryException {
if (basicSearchElement == null)
throw new BadQueryException (NO_QUERY_ELEMENT);
namespace = basicSearchElement.getNamespace();
Element selectElement = basicSearchElement.getChild
(Literals.SELECT, namespace);
// SELECT is mandatory
if (selectElement == null)
throw new BadQueryException (SELECT_ELEMENT_MISSING);
Element fromElement = basicSearchElement.getChild
(Literals.FROM, namespace);
// FROM is mandatory
if (fromElement == null) {
throw new BadQueryException (FROM_ELEMENT_MISSING);
}
whereElement = basicSearchElement.getChild
(Literals.WHERE, namespace);
Element orderByElement = basicSearchElement.getChild
(Literals.ORDERBY, namespace);
Element limitElement = basicSearchElement.getChild
(Literals.LIMIT, namespace);
Element propElement = selectElement.getChild (Literals.PROP, namespace);
if (propElement == null) {
propElement = selectElement.getChild (Literals.ALLPROP, namespace);
}
if (propElement == null) {
throw new BadQueryException(PROP_OR_ALLPROP_ELEMENT_MISSING);
}
try {
requestedProperties = new RequestedPropertiesImpl (propElement);
}
catch (PropertyParseException e) {
throw new BadQueryException(e.getMessage(), e);
}
queryScope = new BasicQueryScope (fromElement);
if (orderByElement != null) {
orderBy = new OrderBy ();
orderBy.init (orderByElement);
}
if (limitElement != null) {
limit = new Integer (limitElement.getTextTrim()).intValue();
limitDefined = true;
}
}
/**
* QueryScope accessor
*
* @return the Scope
*
*/
public QueryScope getScope () {
return queryScope;
}
/**
* Method getSelectedProperties
*
* @return a SelectedPropertyList
*/
public RequestedProperties requestedProperties () {
return requestedProperties;
}
/**
* Method getExpression
*
* @return a BasicExpression
*
*/
public IBasicExpression getExpression () {
return rootExpression;
}
/**
* Method isLimitDefined
*
* @return true if <limit> was specified
*/
public boolean isLimitDefined () {
return limitDefined;
}
/**
* Method getLimit
*
* @return the value of <limit>
*/
public int getLimit () {
return limit;
}
/**
* Method setScope
*
* @param queryScope a QueryScope
*
*/
public void setScope (QueryScope queryScope) {
this.queryScope = queryScope;
}
/**
* Method getOrderBy
*
* @return an OrderBy
*
*/
public OrderBy getOrderBy () {
return orderBy;
}
/**
* For debugging purpose.
*
* @return this query in string representation
*
*/
public String toString () {
String result =
"SELECT [" + requestedProperties + "] FROM [" + queryScope + "] "
+ "WHERE [" + rootExpression + "]";
return result;
}
/**
* Needed to decide, which implementation of BasicQuery to load
*
* @param basicSearchElementJDOM an Element
*
* @return a QueryScope
*
* @throws BadQueryException
*
*/
public static QueryScope getScope(Element basicSearchElementJDOM)
throws BadQueryException
{
if (basicSearchElementJDOM == null)
throw new BadQueryException (NO_QUERY_ELEMENT);
Namespace namespace = basicSearchElementJDOM.getNamespace();
Element fromElement = basicSearchElementJDOM.getChild
(Literals.FROM, namespace);
// FROM is mandatory
if (fromElement == null)
throw new BadQueryException (FROM_ELEMENT_MISSING);
return new BasicQueryScope (fromElement);
}
/**
* This IBasicExpressionCompilerProvider implementation returns a
* BasicQueryCompiler instance in method getCompiler().
*
* @version $Revision: 207541 $
*
**/
public static class ExpressionCompilerProvider implements IBasicExpressionCompilerProvider {
/**
* Returns an IBasicExpressionCompiler for the given parameters.
*
* @param query the IBasicQuery.
* @param propertyProvider the PropertyProvider to use (may be
* <code>null</code>).
*
* @return an IBasicExpressionCompiler for the given parameters.
*/
public IBasicExpressionCompiler getCompiler(IBasicQuery query, PropertyProvider propertyProvider) throws BadQueryException {
return new BasicExpressionCompiler(query, propertyProvider);
}
}
}
The table below shows all metrics for BasicQuery.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 29.00 | Number of blocks | |
| BLOCK_COMMENT | 22.00 | Number of block comment lines | |
| COMMENTS | 218.00 | Comment lines | |
| COMMENT_DENSITY | 1.59 | Comment density | |
| COMPARISONS | 11.00 | Number of comparison operators | |
| CYCLOMATIC | 33.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 40.00 | Comments in declarations | |
| DOC_COMMENT | 191.00 | Number of javadoc comment lines | |
| ELOC | 137.00 | Effective lines of code | |
| EXEC_COMMENTS | 5.00 | Comments in executable code | |
| EXITS | 20.00 | Procedure exits | |
| FUNCTIONS | 23.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 50.48 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 44.00 | 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 | 0.00 | 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 | 0.00 | 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 | 5.00 | 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 | 0.00 | 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 | 2.00 | 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 | 1.00 | 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 | 0.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 1.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 2.00 | 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 | 1.00 | 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 | 466.00 | Number of lines in the source file | |
| LINE_COMMENT | 5.00 | Number of line comments | |
| LOC | 170.00 | Lines of code | |
| LOGICAL_LINES | 89.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 2.00 | Maximum nesting depth | |
| OPERANDS | 373.00 | Number of operands | |
| OPERATORS | 648.00 | Number of operators | |
| PARAMS | 11.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1021.00 | Halstead program length | |
| PROGRAM_VOCAB | 169.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 33.00 | Number of return points from functions | |
| SIZE | 14277.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 133.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 36.00 | Number of unique operators | |
| WHITESPACE | 78.00 | Number of whitespace lines | |