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org.hibernate.cfg.annotations.TableBinder Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. 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 Inc.
*
* 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.cfg.annotations;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.persistence.UniqueConstraint;
import org.jboss.logging.Logger;
import org.hibernate.AnnotationException;
import org.hibernate.AssertionFailure;
import org.hibernate.annotations.Index;
import org.hibernate.cfg.BinderHelper;
import org.hibernate.cfg.Ejb3JoinColumn;
import org.hibernate.cfg.IndexOrUniqueKeySecondPass;
import org.hibernate.cfg.Mappings;
import org.hibernate.cfg.NamingStrategy;
import org.hibernate.cfg.ObjectNameNormalizer;
import org.hibernate.cfg.ObjectNameSource;
import org.hibernate.cfg.UniqueConstraintHolder;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.internal.util.collections.CollectionHelper;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.Column;
import org.hibernate.mapping.DependantValue;
import org.hibernate.mapping.JoinedSubclass;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.mapping.Property;
import org.hibernate.mapping.SimpleValue;
import org.hibernate.mapping.Table;
import org.hibernate.mapping.ToOne;
import org.hibernate.mapping.Value;
/**
* Table related operations
*
* @author Emmanuel Bernard
*/
@SuppressWarnings("unchecked")
public class TableBinder {
//TODO move it to a getter/setter strategy
private static final CoreMessageLogger LOG = Logger.getMessageLogger(CoreMessageLogger.class, TableBinder.class.getName());
private String schema;
private String catalog;
private String name;
private boolean isAbstract;
private List uniqueConstraints;
// private List uniqueConstraints;
String constraints;
Table denormalizedSuperTable;
Mappings mappings;
private String ownerEntityTable;
private String associatedEntityTable;
private String propertyName;
private String ownerEntity;
private String associatedEntity;
private boolean isJPA2ElementCollection;
public void setSchema(String schema) {
this.schema = schema;
}
public void setCatalog(String catalog) {
this.catalog = catalog;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public void setAbstract(boolean anAbstract) {
isAbstract = anAbstract;
}
public void setUniqueConstraints(UniqueConstraint[] uniqueConstraints) {
this.uniqueConstraints = TableBinder.buildUniqueConstraintHolders( uniqueConstraints );
}
public void setConstraints(String constraints) {
this.constraints = constraints;
}
public void setDenormalizedSuperTable(Table denormalizedSuperTable) {
this.denormalizedSuperTable = denormalizedSuperTable;
}
public void setMappings(Mappings mappings) {
this.mappings = mappings;
}
public void setJPA2ElementCollection(boolean isJPA2ElementCollection) {
this.isJPA2ElementCollection = isJPA2ElementCollection;
}
private static class AssociationTableNameSource implements ObjectNameSource {
private final String explicitName;
private final String logicalName;
private AssociationTableNameSource(String explicitName, String logicalName) {
this.explicitName = explicitName;
this.logicalName = logicalName;
}
public String getExplicitName() {
return explicitName;
}
public String getLogicalName() {
return logicalName;
}
}
// only bind association table currently
public Table bind() {
//logicalName only accurate for assoc table...
final String unquotedOwnerTable = StringHelper.unquote( ownerEntityTable );
final String unquotedAssocTable = StringHelper.unquote( associatedEntityTable );
//@ElementCollection use ownerEntity_property instead of the cleaner ownerTableName_property
// ownerEntity can be null when the table name is explicitly set
final String ownerObjectName = isJPA2ElementCollection && ownerEntity != null ?
StringHelper.unqualify( ownerEntity ) : unquotedOwnerTable;
final ObjectNameSource nameSource = buildNameContext(
ownerObjectName,
unquotedAssocTable );
final boolean ownerEntityTableQuoted = StringHelper.isQuoted( ownerEntityTable );
final boolean associatedEntityTableQuoted = StringHelper.isQuoted( associatedEntityTable );
final ObjectNameNormalizer.NamingStrategyHelper namingStrategyHelper = new ObjectNameNormalizer.NamingStrategyHelper() {
public String determineImplicitName(NamingStrategy strategy) {
final String strategyResult = strategy.collectionTableName(
ownerEntity,
ownerObjectName,
associatedEntity,
unquotedAssocTable,
propertyName
);
return ownerEntityTableQuoted || associatedEntityTableQuoted
? StringHelper.quote( strategyResult )
: strategyResult;
}
public String handleExplicitName(NamingStrategy strategy, String name) {
return strategy.tableName( name );
}
};
return buildAndFillTable(
schema,
catalog,
nameSource,
namingStrategyHelper,
isAbstract,
uniqueConstraints,
constraints,
denormalizedSuperTable,
mappings,
null
);
}
private ObjectNameSource buildNameContext(String unquotedOwnerTable, String unquotedAssocTable) {
String logicalName = mappings.getNamingStrategy().logicalCollectionTableName(
name,
unquotedOwnerTable,
unquotedAssocTable,
propertyName
);
if ( StringHelper.isQuoted( ownerEntityTable ) || StringHelper.isQuoted( associatedEntityTable ) ) {
logicalName = StringHelper.quote( logicalName );
}
return new AssociationTableNameSource( name, logicalName );
}
public static Table buildAndFillTable(
String schema,
String catalog,
ObjectNameSource nameSource,
ObjectNameNormalizer.NamingStrategyHelper namingStrategyHelper,
boolean isAbstract,
List uniqueConstraints,
String constraints,
Table denormalizedSuperTable,
Mappings mappings,
String subselect) {
schema = BinderHelper.isEmptyAnnotationValue( schema ) ? mappings.getSchemaName() : schema;
catalog = BinderHelper.isEmptyAnnotationValue( catalog ) ? mappings.getCatalogName() : catalog;
String realTableName = mappings.getObjectNameNormalizer().normalizeDatabaseIdentifier(
nameSource.getExplicitName(),
namingStrategyHelper
);
final Table table;
if ( denormalizedSuperTable != null ) {
table = mappings.addDenormalizedTable(
schema,
catalog,
realTableName,
isAbstract,
subselect,
denormalizedSuperTable
);
}
else {
table = mappings.addTable(
schema,
catalog,
realTableName,
subselect,
isAbstract
);
}
if ( uniqueConstraints != null && uniqueConstraints.size() > 0 ) {
mappings.addUniqueConstraintHolders( table, uniqueConstraints );
}
if ( constraints != null ) table.addCheckConstraint( constraints );
// logicalName is null if we are in the second pass
final String logicalName = nameSource.getLogicalName();
if ( logicalName != null ) {
mappings.addTableBinding( schema, catalog, logicalName, realTableName, denormalizedSuperTable );
}
return table;
}
/**
* @deprecated Use {@link #buildAndFillTable} instead.
*/
@Deprecated
@SuppressWarnings({ "JavaDoc" })
public static Table fillTable(
String schema,
String catalog,
String realTableName,
String logicalName,
boolean isAbstract,
List uniqueConstraints,
String constraints,
Table denormalizedSuperTable,
Mappings mappings) {
schema = BinderHelper.isEmptyAnnotationValue( schema ) ? mappings.getSchemaName() : schema;
catalog = BinderHelper.isEmptyAnnotationValue( catalog ) ? mappings.getCatalogName() : catalog;
Table table;
if ( denormalizedSuperTable != null ) {
table = mappings.addDenormalizedTable(
schema,
catalog,
realTableName,
isAbstract,
null, //subselect
denormalizedSuperTable
);
}
else {
table = mappings.addTable(
schema,
catalog,
realTableName,
null, //subselect
isAbstract
);
}
if ( uniqueConstraints != null && uniqueConstraints.size() > 0 ) {
mappings.addUniqueConstraints( table, uniqueConstraints );
}
if ( constraints != null ) table.addCheckConstraint( constraints );
//logicalName is null if we are in the second pass
if ( logicalName != null ) {
mappings.addTableBinding( schema, catalog, logicalName, realTableName, denormalizedSuperTable );
}
return table;
}
public static void bindFk(
PersistentClass referencedEntity,
PersistentClass destinationEntity,
Ejb3JoinColumn[] columns,
SimpleValue value,
boolean unique,
Mappings mappings) {
PersistentClass associatedClass;
if ( destinationEntity != null ) {
//overridden destination
associatedClass = destinationEntity;
}
else {
associatedClass = columns[0].getPropertyHolder() == null
? null
: columns[0].getPropertyHolder().getPersistentClass();
}
final String mappedByProperty = columns[0].getMappedBy();
if ( StringHelper.isNotEmpty( mappedByProperty ) ) {
/**
* Get the columns of the mapped-by property
* copy them and link the copy to the actual value
*/
LOG.debugf( "Retrieving property %s.%s", associatedClass.getEntityName(), mappedByProperty );
final Property property = associatedClass.getRecursiveProperty( columns[0].getMappedBy() );
Iterator mappedByColumns;
if ( property.getValue() instanceof Collection ) {
Collection collection = ( (Collection) property.getValue() );
Value element = collection.getElement();
if ( element == null ) {
throw new AnnotationException(
"Illegal use of mappedBy on both sides of the relationship: "
+ associatedClass.getEntityName() + "." + mappedByProperty
);
}
mappedByColumns = element.getColumnIterator();
}
else {
mappedByColumns = property.getValue().getColumnIterator();
}
while ( mappedByColumns.hasNext() ) {
Column column = (Column) mappedByColumns.next();
columns[0].overrideFromReferencedColumnIfNecessary( column );
columns[0].linkValueUsingAColumnCopy( column, value );
}
}
else if ( columns[0].isImplicit() ) {
/**
* if columns are implicit, then create the columns based on the
* referenced entity id columns
*/
Iterator idColumns;
if ( referencedEntity instanceof JoinedSubclass ) {
idColumns = referencedEntity.getKey().getColumnIterator();
}
else {
idColumns = referencedEntity.getIdentifier().getColumnIterator();
}
while ( idColumns.hasNext() ) {
Column column = (Column) idColumns.next();
columns[0].overrideFromReferencedColumnIfNecessary( column );
columns[0].linkValueUsingDefaultColumnNaming( column, referencedEntity, value );
}
}
else {
int fkEnum = Ejb3JoinColumn.checkReferencedColumnsType( columns, referencedEntity, mappings );
if ( Ejb3JoinColumn.NON_PK_REFERENCE == fkEnum ) {
String referencedPropertyName;
if ( value instanceof ToOne ) {
referencedPropertyName = ( (ToOne) value ).getReferencedPropertyName();
}
else if ( value instanceof DependantValue ) {
String propertyName = columns[0].getPropertyName();
if ( propertyName != null ) {
Collection collection = (Collection) referencedEntity.getRecursiveProperty( propertyName )
.getValue();
referencedPropertyName = collection.getReferencedPropertyName();
}
else {
throw new AnnotationException( "SecondaryTable JoinColumn cannot reference a non primary key" );
}
}
else {
throw new AssertionFailure(
"Do a property ref on an unexpected Value type: "
+ value.getClass().getName()
);
}
if ( referencedPropertyName == null ) {
throw new AssertionFailure(
"No property ref found while expected"
);
}
Property synthProp = referencedEntity.getReferencedProperty( referencedPropertyName );
if ( synthProp == null ) {
throw new AssertionFailure(
"Cannot find synthProp: " + referencedEntity.getEntityName() + "." + referencedPropertyName
);
}
linkJoinColumnWithValueOverridingNameIfImplicit(
referencedEntity, synthProp.getColumnIterator(), columns, value
);
}
else {
if ( Ejb3JoinColumn.NO_REFERENCE == fkEnum ) {
//implicit case, we hope PK and FK columns are in the same order
if ( columns.length != referencedEntity.getIdentifier().getColumnSpan() ) {
throw new AnnotationException(
"A Foreign key refering " + referencedEntity.getEntityName()
+ " from " + associatedClass.getEntityName()
+ " has the wrong number of column. should be " + referencedEntity.getIdentifier()
.getColumnSpan()
);
}
linkJoinColumnWithValueOverridingNameIfImplicit(
referencedEntity,
referencedEntity.getIdentifier().getColumnIterator(),
columns,
value
);
}
else {
//explicit referencedColumnName
Iterator idColItr = referencedEntity.getKey().getColumnIterator();
org.hibernate.mapping.Column col;
Table table = referencedEntity.getTable(); //works cause the pk has to be on the primary table
if ( !idColItr.hasNext() ) {
LOG.debug( "No column in the identifier!" );
}
while ( idColItr.hasNext() ) {
boolean match = false;
//for each PK column, find the associated FK column.
col = (org.hibernate.mapping.Column) idColItr.next();
for (Ejb3JoinColumn joinCol : columns) {
String referencedColumn = joinCol.getReferencedColumn();
referencedColumn = mappings.getPhysicalColumnName( referencedColumn, table );
//In JPA 2 referencedColumnName is case insensitive
if ( referencedColumn.equalsIgnoreCase( col.getQuotedName() ) ) {
//proper join column
if ( joinCol.isNameDeferred() ) {
joinCol.linkValueUsingDefaultColumnNaming(
col, referencedEntity, value
);
}
else {
joinCol.linkWithValue( value );
}
joinCol.overrideFromReferencedColumnIfNecessary( col );
match = true;
break;
}
}
if ( !match ) {
throw new AnnotationException(
"Column name " + col.getName() + " of "
+ referencedEntity.getEntityName() + " not found in JoinColumns.referencedColumnName"
);
}
}
}
}
}
value.createForeignKey();
if ( unique ) {
createUniqueConstraint( value );
}
}
public static void linkJoinColumnWithValueOverridingNameIfImplicit(
PersistentClass referencedEntity,
Iterator columnIterator,
Ejb3JoinColumn[] columns,
SimpleValue value) {
for (Ejb3JoinColumn joinCol : columns) {
Column synthCol = (Column) columnIterator.next();
if ( joinCol.isNameDeferred() ) {
//this has to be the default value
joinCol.linkValueUsingDefaultColumnNaming( synthCol, referencedEntity, value );
}
else {
joinCol.linkWithValue( value );
joinCol.overrideFromReferencedColumnIfNecessary( synthCol );
}
}
}
public static void createUniqueConstraint(Value value) {
Iterator iter = value.getColumnIterator();
ArrayList cols = new ArrayList();
while ( iter.hasNext() ) {
cols.add( iter.next() );
}
value.getTable().createUniqueKey( cols );
}
public static void addIndexes(Table hibTable, Index[] indexes, Mappings mappings) {
for (Index index : indexes) {
//no need to handle inSecondPass here since it is only called from EntityBinder
mappings.addSecondPass(
new IndexOrUniqueKeySecondPass( hibTable, index.name(), index.columnNames(), mappings )
);
}
}
/**
* @deprecated Use {@link #buildUniqueConstraintHolders} instead
*/
@Deprecated
@SuppressWarnings({ "JavaDoc" })
public static List buildUniqueConstraints(UniqueConstraint[] constraintsArray) {
List result = new ArrayList();
if ( constraintsArray.length != 0 ) {
for (UniqueConstraint uc : constraintsArray) {
result.add( uc.columnNames() );
}
}
return result;
}
/**
* Build a list of {@link org.hibernate.cfg.UniqueConstraintHolder} instances given a list of
* {@link UniqueConstraint} annotations.
*
* @param annotations The {@link UniqueConstraint} annotations.
*
* @return The built {@link org.hibernate.cfg.UniqueConstraintHolder} instances.
*/
public static List buildUniqueConstraintHolders(UniqueConstraint[] annotations) {
List result;
if ( annotations == null || annotations.length == 0 ) {
result = java.util.Collections.emptyList();
}
else {
result = new ArrayList( CollectionHelper.determineProperSizing( annotations.length ) );
for ( UniqueConstraint uc : annotations ) {
result.add(
new UniqueConstraintHolder()
.setName( uc.name() )
.setColumns( uc.columnNames() )
);
}
}
return result;
}
public void setDefaultName(
String ownerEntity, String ownerEntityTable, String associatedEntity, String associatedEntityTable,
String propertyName
) {
this.ownerEntity = ownerEntity;
this.ownerEntityTable = ownerEntityTable;
this.associatedEntity = associatedEntity;
this.associatedEntityTable = associatedEntityTable;
this.propertyName = propertyName;
this.name = null;
}
}
