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/*
* 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.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;
import java.util.Collections;
import java.util.Comparator;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.TimeZone;
import org.hibernate.Hibernate;
import org.hibernate.MappingException;
import org.hibernate.classic.Lifecycle;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.intercept.LazyPropertyInitializer;
import org.hibernate.property.BackrefPropertyAccessor;
import org.hibernate.tuple.StandardProperty;
import org.hibernate.usertype.CompositeUserType;
import org.hibernate.usertype.UserType;
import org.hibernate.usertype.ParameterizedType;
import org.hibernate.util.ReflectHelper;
/**
* Used internally to obtain instances of Type. Applications should use static methods
* and constants on org.hibernate.Hibernate.
*
* @see org.hibernate.Hibernate
* @author Gavin King
*/
public final class TypeFactory {
private static final Map BASIC_TYPES;
static {
HashMap basics = new HashMap();
basics.put( boolean.class.getName(), Hibernate.BOOLEAN );
basics.put( long.class.getName(), Hibernate.LONG );
basics.put( short.class.getName(), Hibernate.SHORT );
basics.put( int.class.getName(), Hibernate.INTEGER );
basics.put( byte.class.getName(), Hibernate.BYTE );
basics.put( float.class.getName(), Hibernate.FLOAT );
basics.put( double.class.getName(), Hibernate.DOUBLE );
basics.put( char.class.getName(), Hibernate.CHARACTER );
basics.put( Hibernate.CHARACTER.getName(), Hibernate.CHARACTER );
basics.put( Hibernate.INTEGER.getName(), Hibernate.INTEGER );
basics.put( Hibernate.STRING.getName(), Hibernate.STRING );
basics.put( Hibernate.DATE.getName(), Hibernate.DATE );
basics.put( Hibernate.TIME.getName(), Hibernate.TIME );
basics.put( Hibernate.TIMESTAMP.getName(), Hibernate.TIMESTAMP );
basics.put( "dbtimestamp", new DbTimestampType() );
basics.put( Hibernate.LOCALE.getName(), Hibernate.LOCALE );
basics.put( Hibernate.CALENDAR.getName(), Hibernate.CALENDAR );
basics.put( Hibernate.CALENDAR_DATE.getName(), Hibernate.CALENDAR_DATE );
basics.put( Hibernate.CURRENCY.getName(), Hibernate.CURRENCY );
basics.put( Hibernate.TIMEZONE.getName(), Hibernate.TIMEZONE );
basics.put( Hibernate.CLASS.getName(), Hibernate.CLASS );
basics.put( Hibernate.TRUE_FALSE.getName(), Hibernate.TRUE_FALSE );
basics.put( Hibernate.YES_NO.getName(), Hibernate.YES_NO );
basics.put( Hibernate.BINARY.getName(), Hibernate.BINARY );
basics.put( Hibernate.IMAGE.getName(), Hibernate.IMAGE );
basics.put( Hibernate.TEXT.getName(), Hibernate.TEXT );
basics.put( Hibernate.MATERIALIZED_BLOB.getName(), Hibernate.MATERIALIZED_BLOB );
basics.put( Hibernate.MATERIALIZED_CLOB.getName(), Hibernate.MATERIALIZED_CLOB );
basics.put( Hibernate.BLOB.getName(), Hibernate.BLOB );
basics.put( Hibernate.CLOB.getName(), Hibernate.CLOB );
basics.put( Hibernate.BIG_DECIMAL.getName(), Hibernate.BIG_DECIMAL );
basics.put( Hibernate.BIG_INTEGER.getName(), Hibernate.BIG_INTEGER );
basics.put( Hibernate.SERIALIZABLE.getName(), Hibernate.SERIALIZABLE );
basics.put( Hibernate.OBJECT.getName(), Hibernate.OBJECT );
basics.put( Boolean.class.getName(), Hibernate.BOOLEAN );
basics.put( Long.class.getName(), Hibernate.LONG );
basics.put( Short.class.getName(), Hibernate.SHORT );
basics.put( Integer.class.getName(), Hibernate.INTEGER );
basics.put( Byte.class.getName(), Hibernate.BYTE );
basics.put( Float.class.getName(), Hibernate.FLOAT );
basics.put( Double.class.getName(), Hibernate.DOUBLE );
basics.put( Character.class.getName(), Hibernate.CHARACTER );
basics.put( String.class.getName(), Hibernate.STRING );
basics.put( java.util.Date.class.getName(), Hibernate.TIMESTAMP );
basics.put( Time.class.getName(), Hibernate.TIME );
basics.put( Timestamp.class.getName(), Hibernate.TIMESTAMP );
basics.put( java.sql.Date.class.getName(), Hibernate.DATE );
basics.put( BigDecimal.class.getName(), Hibernate.BIG_DECIMAL );
basics.put( BigInteger.class.getName(), Hibernate.BIG_INTEGER );
basics.put( Locale.class.getName(), Hibernate.LOCALE );
basics.put( Calendar.class.getName(), Hibernate.CALENDAR );
basics.put( GregorianCalendar.class.getName(), Hibernate.CALENDAR );
if ( CurrencyType.CURRENCY_CLASS != null ) {
basics.put( CurrencyType.CURRENCY_CLASS.getName(), Hibernate.CURRENCY );
}
basics.put( TimeZone.class.getName(), Hibernate.TIMEZONE );
basics.put( Object.class.getName(), Hibernate.OBJECT );
basics.put( Class.class.getName(), Hibernate.CLASS );
basics.put( byte[].class.getName(), Hibernate.BINARY );
basics.put( "byte[]", Hibernate.BINARY );
basics.put( Byte[].class.getName(), Hibernate.WRAPPER_BINARY );
basics.put( "Byte[]", Hibernate.WRAPPER_BINARY );
basics.put( char[].class.getName(), Hibernate.CHAR_ARRAY );
basics.put( "char[]", Hibernate.CHAR_ARRAY );
basics.put( Character[].class.getName(), Hibernate.CHARACTER_ARRAY );
basics.put( "Character[]", Hibernate.CHARACTER_ARRAY );
basics.put( Blob.class.getName(), Hibernate.BLOB );
basics.put( Clob.class.getName(), Hibernate.CLOB );
basics.put( Serializable.class.getName(), Hibernate.SERIALIZABLE );
Type type = new AdaptedImmutableType(Hibernate.DATE);
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.TIME);
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.TIMESTAMP);
basics.put( type.getName(), type );
type = new AdaptedImmutableType( new DbTimestampType() );
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.CALENDAR);
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.CALENDAR_DATE);
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.SERIALIZABLE);
basics.put( type.getName(), type );
type = new AdaptedImmutableType(Hibernate.BINARY);
basics.put( type.getName(), type );
BASIC_TYPES = Collections.unmodifiableMap( basics );
}
private TypeFactory() {
throw new UnsupportedOperationException();
}
/**
* A one-to-one association type for the given class
*/
public static EntityType oneToOne(
String persistentClass,
ForeignKeyDirection foreignKeyType,
String uniqueKeyPropertyName,
boolean lazy,
boolean unwrapProxy,
boolean isEmbeddedInXML,
String entityName,
String propertyName
) {
return new OneToOneType(
persistentClass,
foreignKeyType,
uniqueKeyPropertyName,
lazy,
unwrapProxy,
isEmbeddedInXML,
entityName,
propertyName
);
}
/**
* A many-to-one association type for the given class
*/
public static EntityType manyToOne(String persistentClass) {
return new ManyToOneType( persistentClass );
}
/**
* A many-to-one association type for the given class
*/
public static EntityType manyToOne(String persistentClass, boolean lazy) {
return new ManyToOneType( persistentClass, lazy );
}
/**
* A many-to-one association type for the given class
*
* @deprecated Use {@link #manyToOne(String, String, boolean, boolean, boolean, boolean, boolean)}
*/
public static EntityType manyToOne(
String persistentClass,
String uniqueKeyPropertyName,
boolean lazy,
boolean unwrapProxy,
boolean isEmbeddedInXML,
boolean ignoreNotFound) {
//noinspection deprecation
return new ManyToOneType(
persistentClass,
uniqueKeyPropertyName,
lazy,
unwrapProxy,
isEmbeddedInXML,
ignoreNotFound
);
}
/**
* A many-to-one association type for the given class
*/
public static EntityType manyToOne(
String persistentClass,
String uniqueKeyPropertyName,
boolean lazy,
boolean unwrapProxy,
boolean isEmbeddedInXML,
boolean ignoreNotFound,
boolean isLogicalOneToOne) {
return new ManyToOneType(
persistentClass,
uniqueKeyPropertyName,
lazy,
unwrapProxy,
isEmbeddedInXML,
ignoreNotFound,
isLogicalOneToOne
);
}
/**
* Given the name of a Hibernate basic type, return an instance of
* org.hibernate.type.Type.
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Type basic(String name) {
return (Type) BASIC_TYPES.get( name );
}
/**
* Uses heuristics to deduce a Hibernate type given a string naming the type or Java class.
* Return an instance of org.hibernate.type.Type.
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Type heuristicType(String typeName) throws MappingException {
return heuristicType( typeName, null );
}
/**
* Uses heuristics to deduce a Hibernate type given a string naming the type or Java class.
* Return an instance of org.hibernate.type.Type.
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Type heuristicType(String typeName, Properties parameters)
throws MappingException {
Type type = TypeFactory.basic( typeName );
if ( type == null ) {
Class typeClass;
try {
typeClass = ReflectHelper.classForName( typeName );
}
catch (ClassNotFoundException cnfe) {
typeClass = null;
}
if ( typeClass != null ) {
if ( Type.class.isAssignableFrom( typeClass ) ) {
try {
type = (Type) typeClass.newInstance();
}
catch (Exception e) {
throw new MappingException(
"Could not instantiate Type: " + typeClass.getName(),
e
);
}
injectParameters(type, parameters);
}
else if ( CompositeUserType.class.isAssignableFrom( typeClass ) ) {
type = new CompositeCustomType( typeClass, parameters );
}
else if ( UserType.class.isAssignableFrom( typeClass ) ) {
type = new CustomType( typeClass, parameters );
}
else if ( Lifecycle.class.isAssignableFrom( typeClass ) ) {
type = Hibernate.entity( typeClass );
}
else if ( Serializable.class.isAssignableFrom( typeClass ) ) {
type = Hibernate.serializable( typeClass );
}
}
}
return type;
}
/**
* The legacy contract.
*
* @deprecated Use {@link #customCollection(String, java.util.Properties, String, String, boolean)} instead
*/
public static CollectionType customCollection(
String typeName,
String role,
String propertyRef,
boolean embedded) {
return customCollection( typeName, null, role, propertyRef, embedded );
}
public static CollectionType customCollection(
String typeName,
Properties typeParameters,
String role,
String propertyRef,
boolean embedded) {
Class typeClass;
try {
typeClass = ReflectHelper.classForName( typeName );
}
catch ( ClassNotFoundException cnfe ) {
throw new MappingException( "user collection type class not found: " + typeName, cnfe );
}
CustomCollectionType result = new CustomCollectionType( typeClass, role, propertyRef, embedded );
if ( typeParameters != null ) {
TypeFactory.injectParameters( result.getUserType(), typeParameters );
}
return result;
}
// Collection Types:
public static CollectionType array(String role, String propertyRef, boolean embedded,
Class elementClass) {
return new ArrayType( role, propertyRef, elementClass, embedded );
}
public static CollectionType list(String role, String propertyRef, boolean embedded) {
return new ListType( role, propertyRef, embedded );
}
public static CollectionType bag(String role, String propertyRef, boolean embedded) {
return new BagType( role, propertyRef, embedded );
}
public static CollectionType idbag(String role, String propertyRef, boolean embedded) {
return new IdentifierBagType( role, propertyRef, embedded );
}
public static CollectionType map(String role, String propertyRef, boolean embedded) {
return new MapType( role, propertyRef, embedded );
}
public static CollectionType orderedMap(String role, String propertyRef, boolean embedded) {
return new OrderedMapType( role, propertyRef, embedded );
}
public static CollectionType set(String role, String propertyRef, boolean embedded) {
return new SetType( role, propertyRef, embedded );
}
public static CollectionType orderedSet(String role, String propertyRef, boolean embedded) {
return new OrderedSetType( role, propertyRef, embedded );
}
public static CollectionType sortedMap(String role, String propertyRef, boolean embedded,
Comparator comparator) {
return new SortedMapType( role, propertyRef, comparator, embedded );
}
public static CollectionType sortedSet(String role, String propertyRef, boolean embedded,
Comparator comparator) {
return new SortedSetType( role, propertyRef, comparator, embedded );
}
public static void injectParameters(Object type, Properties parameters) {
if (type instanceof ParameterizedType) {
( (ParameterizedType) type ).setParameterValues(parameters);
}
else if ( parameters!=null && !parameters.isEmpty() ) {
throw new MappingException(
"type is not parameterized: " +
type.getClass().getName()
);
}
}
// convenience methods relating to operations across arrays of types...
/**
* Deep copy a series of values from one array to another...
*
* @param values The values to copy (the source)
* @param types The value types
* @param copy an array indicating which values to include in the copy
* @param target The array into which to copy the values
* @param session The orginating session
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static void deepCopy(
final Object[] values,
final Type[] types,
final boolean[] copy,
final Object[] target,
final SessionImplementor session) {
for ( int i = 0; i < types.length; i++ ) {
if ( copy[i] ) {
if ( values[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY
|| values[i] == BackrefPropertyAccessor.UNKNOWN ) {
target[i] = values[i];
}
else {
target[i] = types[i].deepCopy( values[i], session.getEntityMode(), session
.getFactory() );
}
}
}
}
/**
* Apply the {@link Type#beforeAssemble} operation across a series of values.
*
* @param row The values
* @param types The value types
* @param session The orginating session
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static void beforeAssemble(
final Serializable[] row,
final Type[] types,
final SessionImplementor session) {
for ( int i = 0; i < types.length; i++ ) {
if ( row[i] != LazyPropertyInitializer.UNFETCHED_PROPERTY
&& row[i] != BackrefPropertyAccessor.UNKNOWN ) {
types[i].beforeAssemble( row[i], session );
}
}
}
/**
* Apply the {@link Type#assemble} operation across a series of values.
*
* @param row The values
* @param types The value types
* @param session The orginating session
* @param owner The entity "owning" the values
* @return The assembled state
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Object[] assemble(
final Serializable[] row,
final Type[] types,
final SessionImplementor session,
final Object owner) {
Object[] assembled = new Object[row.length];
for ( int i = 0; i < types.length; i++ ) {
if ( row[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY || row[i] == BackrefPropertyAccessor.UNKNOWN ) {
assembled[i] = row[i];
}
else {
assembled[i] = types[i].assemble( row[i], session, owner );
}
}
return assembled;
}
/**
* Apply the {@link Type#disassemble} operation across a series of values.
*
* @param row The values
* @param types The value types
* @param nonCacheable An array indicating which values to include in the disassemled state
* @param session The orginating session
* @param owner The entity "owning" the values
* @return The disassembled state
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Serializable[] disassemble(
final Object[] row,
final Type[] types,
final boolean[] nonCacheable,
final SessionImplementor session,
final Object owner) {
Serializable[] disassembled = new Serializable[row.length];
for ( int i = 0; i < row.length; i++ ) {
if ( nonCacheable!=null && nonCacheable[i] ) {
disassembled[i] = LazyPropertyInitializer.UNFETCHED_PROPERTY;
}
else if ( row[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY || row[i] == BackrefPropertyAccessor.UNKNOWN ) {
disassembled[i] = (Serializable) row[i];
}
else {
disassembled[i] = types[i].disassemble( row[i], session, owner );
}
}
return disassembled;
}
/**
* Apply the {@link Type#replace} operation across a series of values.
*
* @param original The source of the state
* @param target The target into which to replace the source values.
* @param types The value types
* @param session The orginating session
* @param owner The entity "owning" the values
* @param copyCache A map representing a cache of already replaced state
* @return The replaced state
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Object[] replace(
final Object[] original,
final Object[] target,
final Type[] types,
final SessionImplementor session,
final Object owner,
final Map copyCache) {
Object[] copied = new Object[original.length];
for ( int i = 0; i < types.length; i++ ) {
if ( original[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY
|| original[i] == BackrefPropertyAccessor.UNKNOWN ) {
copied[i] = target[i];
}
else {
copied[i] = types[i].replace( original[i], target[i], session, owner, copyCache );
}
}
return copied;
}
/**
* Apply the {@link Type#replace} operation across a series of values.
*
* @param original The source of the state
* @param target The target into which to replace the source values.
* @param types The value types
* @param session The orginating session
* @param owner The entity "owning" the values
* @param copyCache A map representing a cache of already replaced state
* @param foreignKeyDirection FK directionality to be applied to the replacement
* @return The replaced state
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Object[] replace(
final Object[] original,
final Object[] target,
final Type[] types,
final SessionImplementor session,
final Object owner,
final Map copyCache,
final ForeignKeyDirection foreignKeyDirection) {
Object[] copied = new Object[original.length];
for ( int i = 0; i < types.length; i++ ) {
if ( original[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY
|| original[i] == BackrefPropertyAccessor.UNKNOWN ) {
copied[i] = target[i];
}
else {
copied[i] = types[i].replace( original[i], target[i], session, owner, copyCache, foreignKeyDirection );
}
}
return copied;
}
/**
* Apply the {@link Type#replace} operation across a series of values, as
* long as the corresponding {@link Type} is an association.
*
* If the corresponding type is a component type, then apply {@link #replaceAssociations}
* accross the component subtypes but do not replace the component value itself.
*
* @param original The source of the state
* @param target The target into which to replace the source values.
* @param types The value types
* @param session The orginating session
* @param owner The entity "owning" the values
* @param copyCache A map representing a cache of already replaced state
* @param foreignKeyDirection FK directionality to be applied to the replacement
* @return The replaced state
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static Object[] replaceAssociations(
final Object[] original,
final Object[] target,
final Type[] types,
final SessionImplementor session,
final Object owner,
final Map copyCache,
final ForeignKeyDirection foreignKeyDirection) {
Object[] copied = new Object[original.length];
for ( int i = 0; i < types.length; i++ ) {
if ( original[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY
|| original[i] == BackrefPropertyAccessor.UNKNOWN ) {
copied[i] = target[i];
}
else if ( types[i].isComponentType() ) {
// need to extract the component values and check for subtype replacements...
AbstractComponentType componentType = ( AbstractComponentType ) types[i];
Type[] subtypes = componentType.getSubtypes();
Object[] origComponentValues = original[i] == null ? new Object[subtypes.length] : componentType.getPropertyValues( original[i], session );
Object[] targetComponentValues = target[i] == null ? new Object[subtypes.length] : componentType.getPropertyValues( target[i], session );
replaceAssociations( origComponentValues, targetComponentValues, subtypes, session, null, copyCache, foreignKeyDirection );
copied[i] = target[i];
}
else if ( !types[i].isAssociationType() ) {
copied[i] = target[i];
}
else {
copied[i] = types[i].replace( original[i], target[i], session, owner, copyCache, foreignKeyDirection );
}
}
return copied;
}
/**
* Determine if any of the given field values are dirty, returning an array containing
* indices of the dirty fields.
*
* If it is determined that no fields are dirty, null is returned.
*
* @param properties The property definitions
* @param currentState The current state of the entity
* @param previousState The baseline state of the entity
* @param includeColumns Columns to be included in the dirty checking, per property
* @param anyUninitializedProperties Does the entity currently hold any uninitialized property values?
* @param session The session from which the dirty check request originated.
* @return Array containing indices of the dirty properties, or null if no properties considered dirty.
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static int[] findDirty(
final StandardProperty[] properties,
final Object[] currentState,
final Object[] previousState,
final boolean[][] includeColumns,
final boolean anyUninitializedProperties,
final SessionImplementor session) {
int[] results = null;
int count = 0;
int span = properties.length;
for ( int i = 0; i < span; i++ ) {
final boolean dirty = currentState[i] != LazyPropertyInitializer.UNFETCHED_PROPERTY
&& properties[i].isDirtyCheckable( anyUninitializedProperties )
&& properties[i].getType().isDirty( previousState[i], currentState[i], includeColumns[i], session );
if ( dirty ) {
if ( results == null ) {
results = new int[span];
}
results[count++] = i;
}
}
if ( count == 0 ) {
return null;
}
else {
int[] trimmed = new int[count];
System.arraycopy( results, 0, trimmed, 0, count );
return trimmed;
}
}
/**
* Determine if any of the given field values are modified, returning an array containing
* indices of the modified fields.
*
* If it is determined that no fields are dirty, null is returned.
*
* @param properties The property definitions
* @param currentState The current state of the entity
* @param previousState The baseline state of the entity
* @param includeColumns Columns to be included in the mod checking, per property
* @param anyUninitializedProperties Does the entity currently hold any uninitialized property values?
* @param session The session from which the dirty check request originated.
* @return Array containing indices of the modified properties, or null if no properties considered modified.
*
* @deprecated see http://opensource.atlassian.com/projects/hibernate/browse/HHH-5138
*/
public static int[] findModified(
final StandardProperty[] properties,
final Object[] currentState,
final Object[] previousState,
final boolean[][] includeColumns,
final boolean anyUninitializedProperties,
final SessionImplementor session) {
int[] results = null;
int count = 0;
int span = properties.length;
for ( int i = 0; i < span; i++ ) {
final boolean modified = currentState[i]!=LazyPropertyInitializer.UNFETCHED_PROPERTY
&& properties[i].isDirtyCheckable(anyUninitializedProperties)
&& properties[i].getType().isModified( previousState[i], currentState[i], includeColumns[i], session );
if ( modified ) {
if ( results == null ) {
results = new int[span];
}
results[count++] = i;
}
}
if ( count == 0 ) {
return null;
}
else {
int[] trimmed = new int[count];
System.arraycopy( results, 0, trimmed, 0, count );
return trimmed;
}
}
}
