CollectionType.java
| Index Score | ||
|---|---|---|
 |
 |
org.hibernate.type |
 |
 |
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 | |
|---|---|---|
| PARAMS | Number of formal parameter declarations |  |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| LINE_COMMENT | Number of line comments | |
| EXEC_COMMENTS | Comments in executable code | |
| RETURNS | Number of return points from functions | |
| FUNCTIONS | Number of function declarations | |
| EXITS | Procedure exits | |
| SIZE | Size of the file in bytes | |
| CYCLOMATIC | Cyclomatic complexity | |
| UNIQUE_OPERANDS | Number of unique operands | |
| BLOCKS | Number of blocks | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| OPERANDS | Number of operands | |
| LINES | Number of lines in the source file | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| OPERATORS | Number of operators | |
| LOC | Lines of code | |
| COMMENTS | Comment lines | |
| ELOC | Effective lines of code | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| COMPARISONS | Number of comparison operators | |
| LOGICAL_LINES | Number of statements | |
| UNIQUE_OPERATORS | Number of unique operators | |
| DOC_COMMENT | Number of javadoc comment lines | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0259 | JAVA0259 Return of collection/array field | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
/*
* 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.type;
import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.dom4j.Element;
import org.dom4j.Node;
import org.hibernate.EntityMode;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.MappingException;
import org.hibernate.collection.PersistentCollection;
import org.hibernate.engine.CollectionKey;
import org.hibernate.engine.EntityEntry;
import org.hibernate.engine.Mapping;
import org.hibernate.engine.PersistenceContext;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.collection.QueryableCollection;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.persister.entity.Joinable;
import org.hibernate.proxy.HibernateProxy;
import org.hibernate.proxy.LazyInitializer;
import org.hibernate.util.ArrayHelper;
import org.hibernate.util.MarkerObject;
/**
* A type that handles Hibernate <tt>PersistentCollection</tt>s (including arrays).
*
* @author Gavin King
*/
public abstract class CollectionType extends AbstractType implements AssociationType {
private static final Object NOT_NULL_COLLECTION = new MarkerObject( "NOT NULL COLLECTION" );
public static final Object UNFETCHED_COLLECTION = new MarkerObject( "UNFETCHED COLLECTION" );
private final String role;
private final String foreignKeyPropertyName;
private final boolean isEmbeddedInXML;
public CollectionType(String role, String foreignKeyPropertyName, boolean isEmbeddedInXML) {
this.role = role;
this.foreignKeyPropertyName = foreignKeyPropertyName;
this.isEmbeddedInXML = isEmbeddedInXML;
}
public boolean isEmbeddedInXML() {
return isEmbeddedInXML;
}
public String getRole() {
return role;
}
public Object indexOf(Object collection, Object element) {
throw new UnsupportedOperationException( "generic collections don't have indexes" );
}
public boolean contains(Object collection, Object childObject, SessionImplementor session) {
// we do not have to worry about queued additions to uninitialized
// collections, since they can only occur for inverse collections!
Iterator elems = getElementsIterator( collection, session );
while ( elems.hasNext() ) {
Object element = elems.next();
// worrying about proxies is perhaps a little bit of overkill here...
if ( element instanceof HibernateProxy ) {
LazyInitializer li = ( (HibernateProxy) element ).getHibernateLazyInitializer();
if ( !li.isUninitialized() ) element = li.getImplementation();
}
if ( element == childObject ) return true;
}
return false;
}
public boolean isCollectionType() {
return true;
}
public final boolean isEqual(Object x, Object y, EntityMode entityMode) {
return x == y
|| ( x instanceof PersistentCollection && ( (PersistentCollection) x ).isWrapper( y ) )
|| ( y instanceof PersistentCollection && ( (PersistentCollection) y ).isWrapper( x ) );
}
public int compare(Object x, Object y, EntityMode entityMode) {
return 0; // collections cannot be compared
}
public int getHashCode(Object x, EntityMode entityMode) {
throw new UnsupportedOperationException( "cannot perform lookups on collections" );
}
/**
* Instantiate an uninitialized collection wrapper or holder. Callers MUST add the holder to the
* persistence context!
*
* @param session The session from which the request is originating.
* @param persister The underlying collection persister (metadata)
* @param key The owner key.
* @return The instantiated collection.
*/
public abstract PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister, Serializable key);
public Object nullSafeGet(ResultSet rs, String name, SessionImplementor session, Object owner) throws SQLException {
return nullSafeGet( rs, new String[] { name }, session, owner );
}
public Object nullSafeGet(ResultSet rs, String[] name, SessionImplementor session, Object owner)
throws HibernateException, SQLException {
return resolve( null, session, owner );
}
public final void nullSafeSet(PreparedStatement st, Object value, int index, boolean[] settable,
SessionImplementor session) throws HibernateException, SQLException {
//NOOP
}
public void nullSafeSet(PreparedStatement st, Object value, int index,
SessionImplementor session) throws HibernateException, SQLException {
}
public int[] sqlTypes(Mapping session) throws MappingException {
return ArrayHelper.EMPTY_INT_ARRAY;
}
public int getColumnSpan(Mapping session) throws MappingException {
return 0;
}
public String toLoggableString(Object value, SessionFactoryImplementor factory)
throws HibernateException {
if ( value == null ) {
return "null";
}
else if ( !Hibernate.isInitialized( value ) ) {
return "<uninitialized>";
}
else {
return renderLoggableString( value, factory );
}
}
protected String renderLoggableString(Object value, SessionFactoryImplementor factory)
throws HibernateException {
if ( Element.class.isInstance( value ) ) {
// for DOM4J "collections" only
// TODO: it would be better if this was done at the higher level by Printer
return ( ( Element ) value ).asXML();
}
else {
List list = new ArrayList();
Type elemType = getElementType( factory );
Iterator iter = getElementsIterator( value );
while ( iter.hasNext() ) {
list.add( elemType.toLoggableString( iter.next(), factory ) );
}
return list.toString();
}
}
public Object deepCopy(Object value, EntityMode entityMode, SessionFactoryImplementor factory)
throws HibernateException {
return value;
}
public String getName() {
return getReturnedClass().getName() + '(' + getRole() + ')';
}
/**
* Get an iterator over the element set of the collection, which may not yet be wrapped
*
* @param collection The collection to be iterated
* @param session The session from which the request is originating.
* @return The iterator.
*/
public Iterator getElementsIterator(Object collection, SessionImplementor session) {
if ( session.getEntityMode()==EntityMode.DOM4J ) {
final SessionFactoryImplementor factory = session.getFactory();
final CollectionPersister persister = factory.getCollectionPersister( getRole() );
final Type elementType = persister.getElementType();
List elements = ( (Element) collection ).elements( persister.getElementNodeName() );
ArrayList results = new ArrayList();
for ( int i=0; i<elements.size(); i++ ) {
Element value = (Element) elements.get(i);
results.add( elementType.fromXMLNode( value, factory ) );
}
return results.iterator();
}
else {
return getElementsIterator(collection);
}
}
/**
* Get an iterator over the element set of the collection in POJO mode
*
* @param collection The collection to be iterated
* @return The iterator.
*/
protected Iterator getElementsIterator(Object collection) {
return ( (Collection) collection ).iterator();
}
public boolean isMutable() {
return false;
}
public Serializable disassemble(Object value, SessionImplementor session, Object owner)
throws HibernateException {
//remember the uk value
//This solution would allow us to eliminate the owner arg to disassemble(), but
//what if the collection was null, and then later had elements added? seems unsafe
//session.getPersistenceContext().getCollectionEntry( (PersistentCollection) value ).getKey();
final Serializable key = getKeyOfOwner(owner, session);
if (key==null) {
return null;
}
else {
return getPersister(session)
.getKeyType()
.disassemble( key, session, owner );
}
}
public Object assemble(Serializable cached, SessionImplementor session, Object owner)
throws HibernateException {
//we must use the "remembered" uk value, since it is
//not available from the EntityEntry during assembly
if (cached==null) {
return null;
}
else {
final Serializable key = (Serializable) getPersister(session)
.getKeyType()
.assemble( cached, session, owner);
return resolveKey( key, session, owner );
}
}
/**
* Is the owning entity versioned?
*
* @param session The session from which the request is originating.
* @return True if the collection owner is versioned; false otherwise.
* @throws org.hibernate.MappingException Indicates our persister could not be located.
*/
private boolean isOwnerVersioned(SessionImplementor session) throws MappingException {
return getPersister( session ).getOwnerEntityPersister().isVersioned();
}
/**
* Get our underlying collection persister (using the session to access the
* factory).
*
* @param session The session from which the request is originating.
* @return The underlying collection persister
*/
private CollectionPersister getPersister(SessionImplementor session) {
return session.getFactory().getCollectionPersister( role );
}
public boolean isDirty(Object old, Object current, SessionImplementor session)
throws HibernateException {
// collections don't dirty an unversioned parent entity
// TODO: I don't really like this implementation; it would be better if
// this was handled by searchForDirtyCollections()
return isOwnerVersioned( session ) && super.isDirty( old, current, session );
// return false;
}
public boolean isDirty(Object old, Object current, boolean[] checkable, SessionImplementor session)
throws HibernateException {
return isDirty(old, current, session);
}
/**
* Wrap the naked collection instance in a wrapper, or instantiate a
* holder. Callers <b>MUST</b> add the holder to the persistence context!
*
* @param session The session from which the request is originating.
* @param collection The bare collection to be wrapped.
* @return The wrapped collection.
*/
public abstract PersistentCollection wrap(SessionImplementor session, Object collection);
/**
* Note: return true because this type is castable to <tt>AssociationType</tt>. Not because
* all collections are associations.
*/
public boolean isAssociationType() {
return true;
}
public ForeignKeyDirection getForeignKeyDirection() {
return ForeignKeyDirection.FOREIGN_KEY_TO_PARENT;
}
/**
* Get the key value from the owning entity instance, usually the identifier, but might be some
* other unique key, in the case of property-ref
*
* @param owner The collection owner
* @param session The session from which the request is originating.
* @return The collection owner's key
*/
public Serializable getKeyOfOwner(Object owner, SessionImplementor session) {
EntityEntry entityEntry = session.getPersistenceContext().getEntry( owner );
if ( entityEntry == null ) return null; // This just handles a particular case of component
// projection, perhaps get rid of it and throw an exception
if ( foreignKeyPropertyName == null ) {
return entityEntry.getId();
}
else {
// TODO: at the point where we are resolving collection references, we don't
// know if the uk value has been resolved (depends if it was earlier or
// later in the mapping document) - now, we could try and use e.getStatus()
// to decide to semiResolve(), trouble is that initializeEntity() reuses
// the same array for resolved and hydrated values
Object id;
if ( entityEntry.getLoadedState() != null ) {
id = entityEntry.getLoadedValue( foreignKeyPropertyName );
}
else {
id = entityEntry.getPersister().getPropertyValue( owner, foreignKeyPropertyName, session.getEntityMode() );
}
// NOTE VERY HACKISH WORKAROUND!!
// TODO: Fix this so it will work for non-POJO entity mode
Type keyType = getPersister( session ).getKeyType();
if ( !keyType.getReturnedClass().isInstance( id ) ) {
id = (Serializable) keyType.semiResolve(
entityEntry.getLoadedValue( foreignKeyPropertyName ),
session,
owner
);
}
return (Serializable) id;
}
}
/**
* Get the id value from the owning entity key, usually the same as the key, but might be some
* other property, in the case of property-ref
*
* @param key The collection owner key
* @param session The session from which the request is originating.
* @return The collection owner's id, if it can be obtained from the key;
* otherwise, null is returned
*/
public Serializable getIdOfOwnerOrNull(Serializable key, SessionImplementor session) {
Serializable ownerId = null;
if ( foreignKeyPropertyName == null ) {
ownerId = key;
}
else {
Type keyType = getPersister( session ).getKeyType();
EntityPersister ownerPersister = getPersister( session ).getOwnerEntityPersister();
// TODO: Fix this so it will work for non-POJO entity mode
Class ownerMappedClass = ownerPersister.getMappedClass( session.getEntityMode() );
if ( ownerMappedClass.isAssignableFrom( keyType.getReturnedClass() ) &&
keyType.getReturnedClass().isInstance( key ) ) {
// the key is the owning entity itself, so get the ID from the key
ownerId = ownerPersister.getIdentifier( key, session.getEntityMode() );
}
else {
// TODO: check if key contains the owner ID
}
}
return ownerId;
}
public Object hydrate(ResultSet rs, String[] name, SessionImplementor session, Object owner) {
// can't just return null here, since that would
// cause an owning component to become null
return NOT_NULL_COLLECTION;
}
public Object resolve(Object value, SessionImplementor session, Object owner)
throws HibernateException {
return resolveKey( getKeyOfOwner( owner, session ), session, owner );
}
private Object resolveKey(Serializable key, SessionImplementor session, Object owner) {
// if (key==null) throw new AssertionFailure("owner identifier unknown when re-assembling
// collection reference");
return key == null ? null : // TODO: can this case really occur??
getCollection( key, session, owner );
}
public Object semiResolve(Object value, SessionImplementor session, Object owner)
throws HibernateException {
throw new UnsupportedOperationException(
"collection mappings may not form part of a property-ref" );
}
public boolean isArrayType() {
return false;
}
public boolean useLHSPrimaryKey() {
return foreignKeyPropertyName == null;
}
public String getRHSUniqueKeyPropertyName() {
return null;
}
public Joinable getAssociatedJoinable(SessionFactoryImplementor factory)
throws MappingException {
return (Joinable) factory.getCollectionPersister( role );
}
public boolean isModified(Object old, Object current, boolean[] checkable, SessionImplementor session) throws HibernateException {
return false;
}
public String getAssociatedEntityName(SessionFactoryImplementor factory)
throws MappingException {
try {
QueryableCollection collectionPersister = (QueryableCollection) factory
.getCollectionPersister( role );
if ( !collectionPersister.getElementType().isEntityType() ) {
throw new MappingException(
"collection was not an association: " +
collectionPersister.getRole()
);
}
return collectionPersister.getElementPersister().getEntityName();
}
catch (ClassCastException cce) {
throw new MappingException( "collection role is not queryable " + role );
}
}
/**
* Replace the elements of a collection with the elements of another collection.
*
* @param original The 'source' of the replacement elements (where we copy from)
* @param target The target of the replacement elements (where we copy to)
* @param owner The owner of the collection being merged
* @param copyCache The map of elements already replaced.
* @param session The session from which the merge event originated.
* @return The merged collection.
*/
public Object replaceElements(
Object original,
Object target,
Object owner,
Map copyCache,
SessionImplementor session) {
// TODO: does not work for EntityMode.DOM4J yet!
java.util.Collection result = ( java.util.Collection ) target;
result.clear();
// copy elements into newly empty target collection
Type elemType = getElementType( session.getFactory() );
Iterator iter = ( (java.util.Collection) original ).iterator();
while ( iter.hasNext() ) {
result.add( elemType.replace( iter.next(), null, session, owner, copyCache ) );
}
// if the original is a PersistentCollection, and that original
// was not flagged as dirty, then reset the target's dirty flag
// here after the copy operation.
// </p>
// One thing to be careful of here is a "bare" original collection
// in which case we should never ever ever reset the dirty flag
// on the target because we simply do not know...
if ( original instanceof PersistentCollection ) {
if ( result instanceof PersistentCollection ) {
if ( ! ( ( PersistentCollection ) original ).isDirty() ) {
( ( PersistentCollection ) result ).clearDirty();
}
}
}
return result;
}
/**
* Instantiate a new "underlying" collection exhibiting the same capacity
* charactersitcs and the passed "original".
*
* @param original The original collection.
* @return The newly instantiated collection.
*/
protected Object instantiateResult(Object original) {
// by default just use an unanticipated capacity since we don't
// know how to extract the capacity to use from original here...
return instantiate( -1 );
}
/**
* Instantiate an empty instance of the "underlying" collection (not a wrapper),
* but with the given anticipated size (i.e. accounting for initial capacity
* and perhaps load factor).
*
* @param anticipatedSize The anticipated size of the instaniated collection
* after we are done populating it.
* @return A newly instantiated collection to be wrapped.
*/
public abstract Object instantiate(int anticipatedSize);
/**
* {@inheritDoc}
*/
public Object replace(
final Object original,
final Object target,
final SessionImplementor session,
final Object owner,
final Map copyCache) throws HibernateException {
if ( original == null ) {
return null;
}
if ( !Hibernate.isInitialized( original ) ) {
return target;
}
// for a null target, or a target which is the same as the original, we
// need to put the merged elements in a new collection
Object result = target == null || target == original ? instantiateResult( original ) : target;
//for arrays, replaceElements() may return a different reference, since
//the array length might not match
result = replaceElements( original, result, owner, copyCache, session );
if ( original == target ) {
// get the elements back into the target making sure to handle dirty flag
boolean wasClean = PersistentCollection.class.isInstance( target ) && !( ( PersistentCollection ) target ).isDirty();
//TODO: this is a little inefficient, don't need to do a whole
// deep replaceElements() call
replaceElements( result, target, owner, copyCache, session );
if ( wasClean ) {
( ( PersistentCollection ) target ).clearDirty();
}
result = target;
}
return result;
}
/**
* Get the Hibernate type of the collection elements
*
* @param factory The session factory.
* @return The type of the collection elements
* @throws MappingException Indicates the underlying persister could not be located.
*/
public final Type getElementType(SessionFactoryImplementor factory) throws MappingException {
return factory.getCollectionPersister( getRole() ).getElementType();
}
public String toString() {
return getClass().getName() + '(' + getRole() + ')';
}
public String getOnCondition(String alias, SessionFactoryImplementor factory, Map enabledFilters)
throws MappingException {
return getAssociatedJoinable( factory ).filterFragment( alias, enabledFilters );
}
/**
* instantiate a collection wrapper (called when loading an object)
*
* @param key The collection owner key
* @param session The session from which the request is originating.
* @param owner The collection owner
* @return The collection
*/
public Object getCollection(Serializable key, SessionImplementor session, Object owner) {
CollectionPersister persister = getPersister( session );
final PersistenceContext persistenceContext = session.getPersistenceContext();
final EntityMode entityMode = session.getEntityMode();
if (entityMode==EntityMode.DOM4J && !isEmbeddedInXML) {
return UNFETCHED_COLLECTION;
}
// check if collection is currently being loaded
PersistentCollection collection = persistenceContext.getLoadContexts().locateLoadingCollection( persister, key );
if ( collection == null ) {
// check if it is already completely loaded, but unowned
collection = persistenceContext.useUnownedCollection( new CollectionKey(persister, key, entityMode) );
if ( collection == null ) {
// create a new collection wrapper, to be initialized later
collection = instantiate( session, persister, key );
collection.setOwner(owner);
persistenceContext.addUninitializedCollection( persister, collection, key );
// some collections are not lazy:
if ( initializeImmediately( entityMode ) ) {
session.initializeCollection( collection, false );
}
else if ( !persister.isLazy() ) {
persistenceContext.addNonLazyCollection( collection );
}
if ( hasHolder( entityMode ) ) {
session.getPersistenceContext().addCollectionHolder( collection );
}
}
}
collection.setOwner(owner);
return collection.getValue();
}
public boolean hasHolder(EntityMode entityMode) {
return entityMode == EntityMode.DOM4J;
}
protected boolean initializeImmediately(EntityMode entityMode) {
return entityMode == EntityMode.DOM4J;
}
public String getLHSPropertyName() {
return foreignKeyPropertyName;
}
public boolean isXMLElement() {
return true;
}
public Object fromXMLNode(Node xml, Mapping factory) throws HibernateException {
return xml;
}
public void setToXMLNode(Node node, Object value, SessionFactoryImplementor factory)
throws HibernateException {
if ( !isEmbeddedInXML ) {
node.detach();
}
else {
replaceNode( node, (Element) value );
}
}
/**
* We always need to dirty check the collection because we sometimes
* need to incremement version number of owner and also because of
* how assemble/disassemble is implemented for uks
*/
public boolean isAlwaysDirtyChecked() {
return true;
}
public boolean[] toColumnNullness(Object value, Mapping mapping) {
return ArrayHelper.EMPTY_BOOLEAN_ARRAY;
}
}
The table below shows all metrics for CollectionType.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 100.00 | Number of blocks | |
| BLOCK_COMMENT | 24.00 | Number of block comment lines | |
| COMMENTS | 196.00 | Comment lines | |
| COMMENT_DENSITY | 0.63 | Comment density | |
| COMPARISONS | 49.00 | Number of comparison operators | |
| CYCLOMATIC | 103.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 18.00 | Comments in declarations | |
| DOC_COMMENT | 119.00 | Number of javadoc comment lines | |
| ELOC | 309.00 | Effective lines of code | |
| EXEC_COMMENTS | 30.00 | Comments in executable code | |
| EXITS | 88.00 | Procedure exits | |
| FUNCTIONS | 60.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 70.52 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 211.00 | 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 | 1.00 | 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 | 3.00 | 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 | 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 | 2.00 | 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 | 1.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 8.00 | 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 | 23.00 | 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 | 1129.00 | 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 | 3.00 | 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 | 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 | 3.00 | 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 | 1.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 2.00 | 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 | 707.00 | Number of lines in the source file | |
| LINE_COMMENT | 53.00 | Number of line comments | |
| LOC | 410.00 | Lines of code | |
| LOGICAL_LINES | 167.00 | Number of statements | |
| LOOPS | 4.00 | Number of loops | |
| NEST_DEPTH | 4.00 | Maximum nesting depth | |
| OPERANDS | 990.00 | Number of operands | |
| OPERATORS | 1710.00 | Number of operators | |
| PARAMS | 116.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2700.00 | Halstead program length | |
| PROGRAM_VOCAB | 409.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 95.00 | Number of return points from functions | |
| SIZE | 23990.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 358.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 51.00 | Number of unique operators | |
| WHITESPACE | 101.00 | Number of whitespace lines | |