CustomLoader.java
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org.hibernate.loader.custom |
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Hibernate |
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 | |
|---|---|---|
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws |  |
| INTERFACE_COMPLEXITY | Interface complexity | |
| RETURNS | Number of return points from functions | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| EXITS | Procedure exits | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| LOGICAL_LINES | Number of statements | |
| PARAMS | Number of formal parameter declarations | |
| OPERANDS | Number of operands | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERATORS | Number of operators | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0259 | JAVA0259 Return of collection/array field | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| ELOC | Effective lines of code | |
| LOOPS | Number of loops | |
| SIZE | Size of the file in bytes | |
| LOC | Lines of code | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| BLOCKS | Number of blocks | |
| FUNCTIONS | Number of function declarations | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0043 | JAVA0043 Inner class does not use outer class | |
| LINES | Number of lines in the source file | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0128 | JAVA0128 Public constructor in non-public class | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| JAVA0068 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0118 | JAVA0118 Missing javadoc: type 'type' | |
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate.loader.custom;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.HashSet;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.QueryException;
import org.hibernate.ScrollableResults;
import org.hibernate.engine.QueryParameters;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.hql.HolderInstantiator;
import org.hibernate.loader.CollectionAliases;
import org.hibernate.loader.EntityAliases;
import org.hibernate.loader.Loader;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.collection.QueryableCollection;
import org.hibernate.persister.entity.Loadable;
import org.hibernate.persister.entity.Queryable;
import org.hibernate.transform.ResultTransformer;
import org.hibernate.type.Type;
import org.hibernate.type.TypeFactory;
import org.hibernate.type.EntityType;
import org.hibernate.type.CollectionType;
import org.hibernate.util.ArrayHelper;
/**
* Extension point for loaders which use a SQL result set with "unexpected" column aliases.
*
* @author Gavin King
* @author Steve Ebersole
*/
public class CustomLoader extends Loader {
// Currently *not* cachable if autodiscover types is in effect (e.g. "select * ...")
private final String sql;
private final Set querySpaces = new HashSet();
private final Map namedParameterBindPoints;
private final Queryable[] entityPersisters;
private final int[] entiytOwners;
private final EntityAliases[] entityAliases;
private final QueryableCollection[] collectionPersisters;
private final int[] collectionOwners;
private final CollectionAliases[] collectionAliases;
private final LockMode[] lockModes;
// private final String[] sqlAliases;
// private final String[] sqlAliasSuffixes;
private final ResultRowProcessor rowProcessor;
// this is only needed (afaict) for processing results from the query cache;
// however, this cannot possibly work in the case of discovered types...
private Type[] resultTypes;
// this is only needed (afaict) for ResultTransformer processing...
private String[] transformerAliases;
public CustomLoader(CustomQuery customQuery, SessionFactoryImplementor factory) {
super( factory );
this.sql = customQuery.getSQL();
this.querySpaces.addAll( customQuery.getQuerySpaces() );
this.namedParameterBindPoints = customQuery.getNamedParameterBindPoints();
List entityPersisters = new ArrayList();
List entityOwners = new ArrayList();
List entityAliases = new ArrayList();
List collectionPersisters = new ArrayList();
List collectionOwners = new ArrayList();
List collectionAliases = new ArrayList();
List lockModes = new ArrayList();
List resultColumnProcessors = new ArrayList();
List nonScalarReturnList = new ArrayList();
List resultTypes = new ArrayList();
List specifiedAliases = new ArrayList();
int returnableCounter = 0;
boolean hasScalars = false;
Iterator itr = customQuery.getCustomQueryReturns().iterator();
while ( itr.hasNext() ) {
final Return rtn = ( Return ) itr.next();
if ( rtn instanceof ScalarReturn ) {
ScalarReturn scalarRtn = ( ScalarReturn ) rtn;
resultTypes.add( scalarRtn.getType() );
specifiedAliases.add( scalarRtn.getColumnAlias() );
resultColumnProcessors.add(
new ScalarResultColumnProcessor(
scalarRtn.getColumnAlias(),
scalarRtn.getType()
)
);
hasScalars = true;
}
else if ( rtn instanceof RootReturn ) {
RootReturn rootRtn = ( RootReturn ) rtn;
Queryable persister = ( Queryable ) factory.getEntityPersister( rootRtn.getEntityName() );
entityPersisters.add( persister );
lockModes.add( rootRtn.getLockMode() );
resultColumnProcessors.add( new NonScalarResultColumnProcessor( returnableCounter++ ) );
nonScalarReturnList.add( rtn );
entityOwners.add( new Integer( -1 ) );
resultTypes.add( persister.getType() );
specifiedAliases.add( rootRtn.getAlias() );
entityAliases.add( rootRtn.getEntityAliases() );
ArrayHelper.addAll( querySpaces, persister.getQuerySpaces() );
}
else if ( rtn instanceof CollectionReturn ) {
CollectionReturn collRtn = ( CollectionReturn ) rtn;
String role = collRtn.getOwnerEntityName() + "." + collRtn.getOwnerProperty();
QueryableCollection persister = ( QueryableCollection ) factory.getCollectionPersister( role );
collectionPersisters.add( persister );
lockModes.add( collRtn.getLockMode() );
resultColumnProcessors.add( new NonScalarResultColumnProcessor( returnableCounter++ ) );
nonScalarReturnList.add( rtn );
collectionOwners.add( new Integer( -1 ) );
resultTypes.add( persister.getType() );
specifiedAliases.add( collRtn.getAlias() );
collectionAliases.add( collRtn.getCollectionAliases() );
// determine if the collection elements are entities...
Type elementType = persister.getElementType();
if ( elementType.isEntityType() ) {
Queryable elementPersister = ( Queryable ) ( ( EntityType ) elementType ).getAssociatedJoinable( factory );
entityPersisters.add( elementPersister );
entityOwners.add( new Integer( -1 ) );
entityAliases.add( collRtn.getElementEntityAliases() );
ArrayHelper.addAll( querySpaces, elementPersister.getQuerySpaces() );
}
}
else if ( rtn instanceof EntityFetchReturn ) {
EntityFetchReturn fetchRtn = ( EntityFetchReturn ) rtn;
NonScalarReturn ownerDescriptor = fetchRtn.getOwner();
int ownerIndex = nonScalarReturnList.indexOf( ownerDescriptor );
entityOwners.add( new Integer( ownerIndex ) );
lockModes.add( fetchRtn.getLockMode() );
Queryable ownerPersister = determineAppropriateOwnerPersister( ownerDescriptor );
EntityType fetchedType = ( EntityType ) ownerPersister.getPropertyType( fetchRtn.getOwnerProperty() );
String entityName = fetchedType.getAssociatedEntityName( getFactory() );
Queryable persister = ( Queryable ) factory.getEntityPersister( entityName );
entityPersisters.add( persister );
nonScalarReturnList.add( rtn );
specifiedAliases.add( fetchRtn.getAlias() );
entityAliases.add( fetchRtn.getEntityAliases() );
ArrayHelper.addAll( querySpaces, persister.getQuerySpaces() );
}
else if ( rtn instanceof CollectionFetchReturn ) {
CollectionFetchReturn fetchRtn = ( CollectionFetchReturn ) rtn;
NonScalarReturn ownerDescriptor = fetchRtn.getOwner();
int ownerIndex = nonScalarReturnList.indexOf( ownerDescriptor );
collectionOwners.add( new Integer( ownerIndex ) );
lockModes.add( fetchRtn.getLockMode() );
Queryable ownerPersister = determineAppropriateOwnerPersister( ownerDescriptor );
String role = ownerPersister.getEntityName() + '.' + fetchRtn.getOwnerProperty();
QueryableCollection persister = ( QueryableCollection ) factory.getCollectionPersister( role );
collectionPersisters.add( persister );
nonScalarReturnList.add( rtn );
specifiedAliases.add( fetchRtn.getAlias() );
collectionAliases.add( fetchRtn.getCollectionAliases() );
// determine if the collection elements are entities...
Type elementType = persister.getElementType();
if ( elementType.isEntityType() ) {
Queryable elementPersister = ( Queryable ) ( ( EntityType ) elementType ).getAssociatedJoinable( factory );
entityPersisters.add( elementPersister );
entityOwners.add( new Integer( ownerIndex ) );
entityAliases.add( fetchRtn.getElementEntityAliases() );
ArrayHelper.addAll( querySpaces, elementPersister.getQuerySpaces() );
}
}
else {
throw new HibernateException( "unexpected custom query return type : " + rtn.getClass().getName() );
}
}
this.entityPersisters = new Queryable[ entityPersisters.size() ];
for ( int i = 0; i < entityPersisters.size(); i++ ) {
this.entityPersisters[i] = ( Queryable ) entityPersisters.get( i );
}
this.entiytOwners = ArrayHelper.toIntArray( entityOwners );
this.entityAliases = new EntityAliases[ entityAliases.size() ];
for ( int i = 0; i < entityAliases.size(); i++ ) {
this.entityAliases[i] = ( EntityAliases ) entityAliases.get( i );
}
this.collectionPersisters = new QueryableCollection[ collectionPersisters.size() ];
for ( int i = 0; i < collectionPersisters.size(); i++ ) {
this.collectionPersisters[i] = ( QueryableCollection ) collectionPersisters.get( i );
}
this.collectionOwners = ArrayHelper.toIntArray( collectionOwners );
this.collectionAliases = new CollectionAliases[ collectionAliases.size() ];
for ( int i = 0; i < collectionAliases.size(); i++ ) {
this.collectionAliases[i] = ( CollectionAliases ) collectionAliases.get( i );
}
this.lockModes = new LockMode[ lockModes.size() ];
for ( int i = 0; i < lockModes.size(); i++ ) {
this.lockModes[i] = ( LockMode ) lockModes.get( i );
}
this.resultTypes = ArrayHelper.toTypeArray( resultTypes );
this.transformerAliases = ArrayHelper.toStringArray( specifiedAliases );
this.rowProcessor = new ResultRowProcessor(
hasScalars,
( ResultColumnProcessor[] ) resultColumnProcessors.toArray( new ResultColumnProcessor[ resultColumnProcessors.size() ] )
);
}
private Queryable determineAppropriateOwnerPersister(NonScalarReturn ownerDescriptor) {
String entityName = null;
if ( ownerDescriptor instanceof RootReturn ) {
entityName = ( ( RootReturn ) ownerDescriptor ).getEntityName();
}
else if ( ownerDescriptor instanceof CollectionReturn ) {
CollectionReturn collRtn = ( CollectionReturn ) ownerDescriptor;
String role = collRtn.getOwnerEntityName() + "." + collRtn.getOwnerProperty();
CollectionPersister persister = getFactory().getCollectionPersister( role );
EntityType ownerType = ( EntityType ) persister.getElementType();
entityName = ownerType.getAssociatedEntityName( getFactory() );
}
else if ( ownerDescriptor instanceof FetchReturn ) {
FetchReturn fetchRtn = ( FetchReturn ) ownerDescriptor;
Queryable persister = determineAppropriateOwnerPersister( fetchRtn.getOwner() );
Type ownerType = persister.getPropertyType( fetchRtn.getOwnerProperty() );
if ( ownerType.isEntityType() ) {
entityName = ( ( EntityType ) ownerType ).getAssociatedEntityName( getFactory() );
}
else if ( ownerType.isCollectionType() ) {
Type ownerCollectionElementType = ( ( CollectionType ) ownerType ).getElementType( getFactory() );
if ( ownerCollectionElementType.isEntityType() ) {
entityName = ( ( EntityType ) ownerCollectionElementType ).getAssociatedEntityName( getFactory() );
}
}
}
if ( entityName == null ) {
throw new HibernateException( "Could not determine fetch owner : " + ownerDescriptor );
}
return ( Queryable ) getFactory().getEntityPersister( entityName );
}
protected String getQueryIdentifier() {
return sql;
}
protected String getSQLString() {
return sql;
}
public Set getQuerySpaces() {
return querySpaces;
}
protected LockMode[] getLockModes(Map lockModesMap) {
return lockModes;
}
protected Loadable[] getEntityPersisters() {
return entityPersisters;
}
protected CollectionPersister[] getCollectionPersisters() {
return collectionPersisters;
}
protected int[] getCollectionOwners() {
return collectionOwners;
}
protected int[] getOwners() {
return entiytOwners;
}
public List list(SessionImplementor session, QueryParameters queryParameters) throws HibernateException {
return list( session, queryParameters, querySpaces, resultTypes );
}
public ScrollableResults scroll(
final QueryParameters queryParameters,
final SessionImplementor session) throws HibernateException {
return scroll(
queryParameters,
resultTypes,
getHolderInstantiator( queryParameters.getResultTransformer(), getReturnAliasesForTransformer() ),
session
);
}
static private HolderInstantiator getHolderInstantiator(ResultTransformer resultTransformer, String[] queryReturnAliases) {
if ( resultTransformer != null ) {
return HolderInstantiator.NOOP_INSTANTIATOR;
}
else {
return new HolderInstantiator(resultTransformer, queryReturnAliases);
}
}
protected Object getResultColumnOrRow(
Object[] row,
ResultTransformer transformer,
ResultSet rs,
SessionImplementor session) throws SQLException, HibernateException {
return rowProcessor.buildResultRow( row, rs, transformer != null, session );
}
protected List getResultList(List results, ResultTransformer resultTransformer) throws QueryException {
// meant to handle dynamic instantiation queries...(Copy from QueryLoader)
HolderInstantiator holderInstantiator = HolderInstantiator.getHolderInstantiator(
null,
resultTransformer,
getReturnAliasesForTransformer()
);
if ( holderInstantiator.isRequired() ) {
for ( int i = 0; i < results.size(); i++ ) {
Object[] row = ( Object[] ) results.get( i );
Object result = holderInstantiator.instantiate(row);
results.set( i, result );
}
return resultTransformer.transformList(results);
}
else {
return results;
}
}
private String[] getReturnAliasesForTransformer() {
return transformerAliases;
}
protected EntityAliases[] getEntityAliases() {
return entityAliases;
}
protected CollectionAliases[] getCollectionAliases() {
return collectionAliases;
}
public int[] getNamedParameterLocs(String name) throws QueryException {
Object loc = namedParameterBindPoints.get( name );
if ( loc == null ) {
throw new QueryException(
"Named parameter does not appear in Query: " + name,
sql
);
}
if ( loc instanceof Integer ) {
return new int[] { ( ( Integer ) loc ).intValue() };
}
else {
return ArrayHelper.toIntArray( ( List ) loc );
}
}
public class ResultRowProcessor {
private final boolean hasScalars;
private ResultColumnProcessor[] columnProcessors;
public ResultRowProcessor(boolean hasScalars, ResultColumnProcessor[] columnProcessors) {
this.hasScalars = hasScalars || ( columnProcessors == null || columnProcessors.length == 0 );
this.columnProcessors = columnProcessors;
}
public void prepareForAutoDiscovery(Metadata metadata) throws SQLException {
if ( columnProcessors == null || columnProcessors.length == 0 ) {
int columns = metadata.getColumnCount();
columnProcessors = new ResultColumnProcessor[ columns ];
for ( int i = 1; i <= columns; i++ ) {
columnProcessors[ i - 1 ] = new ScalarResultColumnProcessor( i );
}
}
}
/**
* Build a logical result row.
* <p/>
* At this point, Loader has already processed all non-scalar result data. We
* just need to account for scalar result data here...
*
* @param data Entity data defined as "root returns" and already handled by the
* normal Loader mechanism.
* @param resultSet The JDBC result set (positioned at the row currently being processed).
* @param hasTransformer Does this query have an associated {@link ResultTransformer}
* @param session The session from which the query request originated.
* @return The logical result row
* @throws SQLException
* @throws HibernateException
*/
public Object buildResultRow(
Object[] data,
ResultSet resultSet,
boolean hasTransformer,
SessionImplementor session) throws SQLException, HibernateException {
Object[] resultRow;
if ( !hasScalars ) {
resultRow = data;
}
else {
// build an array with indices equal to the total number
// of actual returns in the result Hibernate will return
// for this query (scalars + non-scalars)
resultRow = new Object[ columnProcessors.length ];
for ( int i = 0; i < columnProcessors.length; i++ ) {
resultRow[i] = columnProcessors[i].extract( data, resultSet, session );
}
}
return ( hasTransformer )
? resultRow
: ( resultRow.length == 1 )
? resultRow[0]
: resultRow;
}
}
private static interface ResultColumnProcessor {
public Object extract(Object[] data, ResultSet resultSet, SessionImplementor session) throws SQLException, HibernateException;
public void performDiscovery(Metadata metadata, List types, List aliases) throws SQLException, HibernateException;
}
public class NonScalarResultColumnProcessor implements ResultColumnProcessor {
private final int position;
public NonScalarResultColumnProcessor(int position) {
this.position = position;
}
public Object extract(
Object[] data,
ResultSet resultSet,
SessionImplementor session) throws SQLException, HibernateException {
return data[ position ];
}
public void performDiscovery(Metadata metadata, List types, List aliases) {
}
}
public class ScalarResultColumnProcessor implements ResultColumnProcessor {
private int position = -1;
private String alias;
private Type type;
public ScalarResultColumnProcessor(int position) {
this.position = position;
}
public ScalarResultColumnProcessor(String alias, Type type) {
this.alias = alias;
this.type = type;
}
public Object extract(
Object[] data,
ResultSet resultSet,
SessionImplementor session) throws SQLException, HibernateException {
return type.nullSafeGet( resultSet, alias, session, null );
}
public void performDiscovery(Metadata metadata, List types, List aliases) throws SQLException {
if ( alias == null ) {
alias = metadata.getColumnName( position );
}
else if ( position < 0 ) {
position = metadata.resolveColumnPosition( alias );
}
if ( type == null ) {
type = metadata.getHibernateType( position );
}
types.add( type );
aliases.add( alias );
}
}
protected void autoDiscoverTypes(ResultSet rs) {
try {
Metadata metadata = new Metadata( getFactory(), rs );
List aliases = new ArrayList();
List types = new ArrayList();
rowProcessor.prepareForAutoDiscovery( metadata );
for ( int i = 0; i < rowProcessor.columnProcessors.length; i++ ) {
rowProcessor.columnProcessors[i].performDiscovery( metadata, types, aliases );
}
resultTypes = ArrayHelper.toTypeArray( types );
transformerAliases = ArrayHelper.toStringArray( aliases );
}
catch ( SQLException e ) {
throw new HibernateException( "Exception while trying to autodiscover types.", e );
}
}
private static class Metadata {
private final SessionFactoryImplementor factory;
private final ResultSet resultSet;
private final ResultSetMetaData resultSetMetaData;
public Metadata(SessionFactoryImplementor factory, ResultSet resultSet) throws HibernateException {
try {
this.factory = factory;
this.resultSet = resultSet;
this.resultSetMetaData = resultSet.getMetaData();
}
catch( SQLException e ) {
throw new HibernateException( "Could not extract result set metadata", e );
}
}
public int getColumnCount() throws HibernateException {
try {
return resultSetMetaData.getColumnCount();
}
catch( SQLException e ) {
throw new HibernateException( "Could not determine result set column count", e );
}
}
public int resolveColumnPosition(String columnName) throws HibernateException {
try {
return resultSet.findColumn( columnName );
}
catch( SQLException e ) {
throw new HibernateException( "Could not resolve column name in result set [" + columnName + "]", e );
}
}
public String getColumnName(int position) throws HibernateException {
try {
return resultSetMetaData.getColumnName( position );
}
catch( SQLException e ) {
throw new HibernateException( "Could not resolve column name [" + position + "]", e );
}
}
public Type getHibernateType(int columnPos) throws SQLException {
int columnType = resultSetMetaData.getColumnType( columnPos );
int scale = resultSetMetaData.getScale( columnPos );
int precision = resultSetMetaData.getPrecision( columnPos );
return TypeFactory.heuristicType(
factory.getDialect().getHibernateTypeName(
columnType,
precision,
precision,
scale
)
);
}
}
}
The table below shows all metrics for CustomLoader.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 83.00 | Number of blocks | |
| BLOCK_COMMENT | 24.00 | Number of block comment lines | |
| COMMENTS | 57.00 | Comment lines | |
| COMMENT_DENSITY | 0.15 | Comment density | |
| COMPARISONS | 35.00 | Number of comparison operators | |
| CYCLOMATIC | 80.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 8.00 | Comments in declarations | |
| DOC_COMMENT | 21.00 | Number of javadoc comment lines | |
| ELOC | 373.00 | Effective lines of code | |
| EXEC_COMMENTS | 4.00 | Comments in executable code | |
| EXITS | 79.00 | Procedure exits | |
| FUNCTIONS | 37.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 89.29 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 127.00 | 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 | 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 | 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 | 2.00 | 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 | 1.00 | 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 | 0.00 | 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 | 16.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 3.00 | 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 | 14.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 1.00 | 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 | 2.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 2.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 1275.00 | 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 | 1.00 | 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 | 1.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 7.00 | 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 | 1.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 1.00 | 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 | 8.00 | 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 | 592.00 | Number of lines in the source file | |
| LINE_COMMENT | 12.00 | Number of line comments | |
| LOC | 464.00 | Lines of code | |
| LOGICAL_LINES | 257.00 | Number of statements | |
| LOOPS | 10.00 | Number of loops | |
| NEST_DEPTH | 4.00 | Maximum nesting depth | |
| OPERANDS | 1173.00 | Number of operands | |
| OPERATORS | 2105.00 | Number of operators | |
| PARAMS | 52.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3278.00 | Halstead program length | |
| PROGRAM_VOCAB | 386.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 75.00 | Number of return points from functions | |
| SIZE | 21358.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 335.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 51.00 | Number of unique operators | |
| WHITESPACE | 71.00 | Number of whitespace lines | |