QueryOperation.java
| Index Score | ||
|---|---|---|
 |
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com.zimbra.cs.index |
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Zimbra Collaboration Suite |
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 | |
|---|---|---|
| JAVA0144 | JAVA0144 Line exceeds maximum M characters |  |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0068 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| EXEC_COMMENTS | Comments in executable code | |
| COMPARISONS | Number of comparison operators | |
| CYCLOMATIC | Cyclomatic complexity | |
| EXITS | Procedure exits | |
| LOC | Lines of code | |
| ELOC | Effective lines of code | |
| WHITESPACE | Number of whitespace lines | |
| LOOPS | Number of loops | |
| OPERANDS | Number of operands | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| OPERATORS | Number of operators | |
| BLOCKS | Number of blocks | |
/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 ("License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.zimbra.com/license
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is: Zimbra Collaboration Suite Server.
*
* The Initial Developer of the Original Code is Zimbra, Inc.
* Portions created by Zimbra are Copyright (C) 2004, 2005, 2006 Zimbra, Inc.
* All Rights Reserved.
*
* Contributor(s):
*
* ***** END LICENSE BLOCK *****
*/
/*
* Created on Oct 15, 2004
*/
package com.zimbra.cs.index;
import java.io.IOException;
import com.zimbra.common.service.ServiceException;
import com.zimbra.cs.index.MailboxIndex.SortBy;
import com.zimbra.cs.mailbox.MailItem;
import com.zimbra.cs.mailbox.Mailbox;
/************************************************************************
*
* QueryOperation
*
* A QueryOperation is a part of a Search request -- there are potentially
* mutliple query operations in a search. QueryOperations return
* ZimbraQueryResultsImpl sets -- which can be iterated over to get ZimbraHit
* objects.
*
* The difference between a QueryOperation and a simple ZimbraQueryResultsImpl
* set is that a QueryOperation knows how to Optimize and Execute itself --
* whereas a QueryResults set is just a set of results and can only be iterated.
*
***********************************************************************/
abstract class QueryOperation implements Cloneable, ZimbraQueryResults
{
private static final int MIN_CHUNK_SIZE = 26;
private static final int MAX_CHUNK_SIZE = 5000;
private static final boolean USE_PRELOADING_GROUPER = true;
/**
* @return A representation of this operation as a parsable query string
*/
abstract String toQueryString();
protected SearchParams mParams;
public SortBy getSortBy() { return mParams.getSortBy(); }
// based on data from our internal mail server:
//
// HOWTO Calculate avg msgs/conv from SQL:
//
// TOT_MSGS = select count(*) from mail_item mi where mi.type=5 and mi.mailbox_id=?;
// TOT_CONVS = select count(*) from mail_item mi where mi.type=4 and mi.mailbox_id=?;
// TOT_VIRTUAL_CONVS = select count(*) from mail_item mi where mi.type=5 and mi.parent_id is NULL and mi.mailbox_id=?;
//
// MSGS_PER_CONV = TOT_MSGS / (TOT_CONVS + TOT_VIRT_CONVS);
//
private static final float MESSAGES_PER_CONV_ESTIMATE = 2.25f;
////////////////////
// Top-Level Execution
final ZimbraQueryResults run(Mailbox mbox, MailboxIndex mbidx, SearchParams params, int chunkSize) throws IOException, ServiceException
{
mParams = params;
mIsToplevelQueryOp = true;
//mSortOrder = searchOrder;
chunkSize++; // one extra for checking the "more" flag at the end of the results
if (chunkSize < MIN_CHUNK_SIZE) {
chunkSize = MIN_CHUNK_SIZE;
} else if (chunkSize > MAX_CHUNK_SIZE) {
chunkSize = MAX_CHUNK_SIZE;
}
int retType = MailboxIndex.SEARCH_RETURN_DOCUMENTS;
byte[] types = mParams.getTypes();
for (int i = 0; i < types.length; i++) {
if (types[i] == MailItem.TYPE_CONVERSATION) {
retType = MailboxIndex.SEARCH_RETURN_CONVERSATIONS;
break;
}
if (types[i] == MailItem.TYPE_MESSAGE) {
retType = MailboxIndex.SEARCH_RETURN_MESSAGES;
break;
}
}
// set me to TRUE if you're returning Conversations or something which could benefit from preloading
boolean preloadOuterResults = false;
int outerChunkSize = chunkSize;
switch (retType) {
case MailboxIndex.SEARCH_RETURN_CONVERSATIONS:
if (mParams.getPrefetch() && USE_PRELOADING_GROUPER) {
chunkSize+= 2; // one for the ConvQueryResults, one for the Grouper
setupResults(mbox, new ConvQueryResults(new ItemPreloadingGrouper(this, chunkSize, mbox), types, mParams.getSortBy(), mParams.getMode()));
chunkSize*=MESSAGES_PER_CONV_ESTIMATE; // guess 2 msgs per conv
} else {
chunkSize++; // one for the ConvQueryResults
setupResults(mbox, new ConvQueryResults(this, types, mParams.getSortBy(), mParams.getMode()));
chunkSize*=MESSAGES_PER_CONV_ESTIMATE;
}
preloadOuterResults = true;
break;
case MailboxIndex.SEARCH_RETURN_MESSAGES:
if (mParams.getPrefetch() && USE_PRELOADING_GROUPER) {
chunkSize+= 2; // one for the MsgQueryResults, one for the Grouper
setupResults(mbox, new MsgQueryResults(new ItemPreloadingGrouper(this, chunkSize, mbox), types, mParams.getSortBy(), mParams.getMode()));
} else {
chunkSize++; // one for the MsgQueryResults
setupResults(mbox, new MsgQueryResults(this, types, mParams.getSortBy(), mParams.getMode()));
}
break;
case MailboxIndex.SEARCH_RETURN_DOCUMENTS:
if (mParams.getPrefetch() && USE_PRELOADING_GROUPER) {
chunkSize++; // one for the grouper
setupResults(mbox, new UngroupedQueryResults(new ItemPreloadingGrouper(this, chunkSize, mbox), types, mParams.getSortBy(), mParams.getMode()));
} else {
setupResults(mbox, new UngroupedQueryResults(this, types, mParams.getSortBy(), mParams.getMode()));
}
break;
}
prepare(mMailbox, mResults, mbidx, mParams, chunkSize);
if (USE_PRELOADING_GROUPER && preloadOuterResults && mParams.getPrefetch()) {
return new ItemPreloadingGrouper(mResults, outerChunkSize, mbox);
} else {
return mResults;
}
}
/******************
*
* Hits iteration
*
*******************/
public boolean hasNext() throws ServiceException
{
return peekNext() != null;
}
/**
*
* prepare() is the API which begins query execution. It is allowed to grab and hold resources, which are then
* released via doneWithSearchResults().
*
*
* IMPORTANT IMPORTANT: prepare() and doneWithSearchResults must always be called in a pair. That is,
* if you call prepare, you MUST call doneWithSearchResults.
*
* @param mbx
* @param res
* @param mbidx
* @param chunkSize A hint to the query operation telling it what size to chunk data in. Higher numbers
* can be more efficient if you are using a lot of results, but have more overhead
* @throws IOException
* @throws ServiceException
*/
protected abstract void prepare(Mailbox mbx, ZimbraQueryResultsImpl res, MailboxIndex mbidx, SearchParams params, int chunkSize) throws IOException, ServiceException;
public ZimbraHit getFirstHit() throws ServiceException {
resetIterator();
return getNext();
}
public ZimbraHit skipToHit(int hitNo) throws ServiceException {
resetIterator();
for (int i = 0; i < hitNo; i++) {
if (!hasNext()) {
return null;
}
getNext();
}
return getNext();
}
/******************
*
* Internals
*
*******************/
abstract QueryTargetSet getQueryTargets();
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
assert(false); // better not happen
}
return null;
}
private boolean mIsToplevelQueryOp = false;
protected boolean isTopLevelQueryOp() { return mIsToplevelQueryOp; }
private ZimbraQueryResultsImpl mResults;
private Mailbox mMailbox;
final protected Mailbox getMailbox() { return mMailbox; }
final protected ZimbraQueryResultsImpl getResultsSet() { return mResults; }
final protected void setupResults(Mailbox mbx, ZimbraQueryResultsImpl res) {
mMailbox = mbx;
mResults = res;
}
/**
* We use this code to recursively descend the operation tree and set the "-in:junk -in:trash"
* setting as necessary. Descend down the tree, when you hit an AND, then only one of the
* subtrees must have it, when you hit an OR, then every subtree must have a setting, or else one must
* be added.
* @param includeTrash TODO
* @param includeSpam TODO
*
*/
abstract QueryOperation ensureSpamTrashSetting(Mailbox mbox, boolean includeTrash, boolean includeSpam) throws ServiceException;
/**
* @return TRUE if this subtree has a trash/spam paramater, FALSE if one is needed.
*/
abstract boolean hasSpamTrashSetting();
/**
* A bit of a hack -- when we combine a "all items including trash/spam" term with another query, this
* API lets us force the "include trash/spam" part in the other query and thereby drop the 1st one.
*/
abstract void forceHasSpamTrashSetting();
abstract boolean hasNoResults();
abstract boolean hasAllResults();
/**
* @param mbox
* @return An Optimzed version of this query, or NULL if this query "should have no effect".
* If NULL is returned, it is up to the caller to decide what to do (usually replace with a
* NullQueryOperation -- however sometimes like within an Intersection you might just want
* to remove the term)
*
* @throws ServiceException
*/
abstract QueryOperation optimize(Mailbox mbox) throws ServiceException;
/**
* Called when optimize()ing a UNION or INTERSECTION -- see if two Ops can be expressed as one (e.g.
* is:unread and in:inbox can both be expressed via one DBQueryOperation)
*
* @param other
* @param union
* @return the new operation that handles both us and the other constraint, or NULL if the ops could
* not be combined.
*/
protected abstract QueryOperation combineOps(QueryOperation other, boolean union);
}
The table below shows all metrics for QueryOperation.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 27.00 | Number of blocks | |
| BLOCK_COMMENT | 27.00 | Number of block comment lines | |
| COMMENTS | 119.00 | Comment lines | |
| COMMENT_DENSITY | 1.17 | Comment density | |
| COMPARISONS | 12.00 | Number of comparison operators | |
| CYCLOMATIC | 29.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 14.00 | Comments in declarations | |
| DOC_COMMENT | 78.00 | Number of javadoc comment lines | |
| ELOC | 102.00 | Effective lines of code | |
| EXEC_COMMENTS | 2.00 | Comments in executable code | |
| EXITS | 10.00 | Procedure exits | |
| FUNCTIONS | 20.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 72.34 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 40.00 | 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 | 1.00 | 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 | 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 | 3.00 | 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 | 2.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 3.00 | 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 | 2.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 4.00 | 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 | 0.00 | 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 | 5.00 | 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 | 1.00 | 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 | 280.00 | Number of lines in the source file | |
| LINE_COMMENT | 14.00 | Number of line comments | |
| LOC | 123.00 | Lines of code | |
| LOGICAL_LINES | 77.00 | Number of statements | |
| LOOPS | 2.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 281.00 | Number of operands | |
| OPERATORS | 589.00 | Number of operators | |
| PARAMS | 18.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 870.00 | Halstead program length | |
| PROGRAM_VOCAB | 153.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 22.00 | Number of return points from functions | |
| SIZE | 10621.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 101.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 52.00 | Number of unique operators | |
| WHITESPACE | 38.00 | Number of whitespace lines | |