package org.hibernate.cfg.annotations;
import java.util.Map;
import org.hibernate.AnnotationException;
import org.hibernate.MappingException;
import org.hibernate.annotations.OrderBy;
import org.hibernate.annotations.Sort;
import org.hibernate.annotations.common.reflection.XClass;
import org.hibernate.annotations.common.reflection.XProperty;
import org.hibernate.annotations.common.util.StringHelper;
import org.hibernate.cfg.CollectionSecondPass;
import org.hibernate.cfg.Ejb3Column;
import org.hibernate.cfg.Ejb3JoinColumn;
import org.hibernate.cfg.ExtendedMappings;
import org.hibernate.cfg.PropertyHolder;
import org.hibernate.cfg.PropertyHolderBuilder;
import org.hibernate.cfg.SecondPass;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.IndexBackref;
import org.hibernate.mapping.List;
import org.hibernate.mapping.OneToMany;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.mapping.SimpleValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Bind a list to the underlying Hibernate configuration
*
* @author Matthew Inger
* @author Emmanuel Bernard
*/
@SuppressWarnings({"unchecked", "serial"})
public class ListBinder extends CollectionBinder {
private Logger log = LoggerFactory.getLogger( ListBinder.class );
public ListBinder() {
}
protected Collection createCollection(PersistentClass persistentClass) {
return new org.hibernate.mapping.List( persistentClass );
}
public void setSqlOrderBy(OrderBy orderByAnn) {
if ( orderByAnn != null ) log.warn( "@OrderBy not allowed for a indexed collection, annotation ignored." );
}
public void setSort(Sort sortAnn) {
if ( sortAnn != null ) log.warn( "@Sort not allowed for a indexed collection, annotation ignored." );
}
@Override
public SecondPass getSecondPass(
final Ejb3JoinColumn[] fkJoinColumns, final Ejb3JoinColumn[] keyColumns,
final Ejb3JoinColumn[] inverseColumns,
final Ejb3Column[] elementColumns,
Ejb3Column[] mapKeyColumns, final Ejb3JoinColumn[] mapKeyManyToManyColumns, final boolean isEmbedded,
final XProperty property, final XClass collType,
final boolean ignoreNotFound, final boolean unique,
final TableBinder assocTableBinder, final ExtendedMappings mappings
) {
return new CollectionSecondPass( mappings, ListBinder.this.collection ) {
public void secondPass(Map persistentClasses, Map inheritedMetas)
throws MappingException {
bindStarToManySecondPass(
persistentClasses, collType, fkJoinColumns, keyColumns, inverseColumns, elementColumns,
isEmbedded, property, unique, assocTableBinder, ignoreNotFound, mappings
);
bindIndex( mappings );
}
};
}
private void bindIndex(final ExtendedMappings mappings) {
if ( indexColumn.isImplicit() == false ) {
PropertyHolder valueHolder = PropertyHolderBuilder.buildPropertyHolder(
this.collection,
StringHelper.qualify( this.collection.getRole(), "key" ),
(XClass) null,
(XProperty) null, propertyHolder, mappings
);
List list = (List) this.collection;
if ( !list.isOneToMany() ) indexColumn.forceNotNull();
indexColumn.setPropertyHolder( valueHolder );
SimpleValueBinder value = new SimpleValueBinder();
value.setColumns( new Ejb3Column[] { indexColumn } );
value.setExplicitType( "integer" );
value.setMappings( mappings );
SimpleValue indexValue = value.make();
indexColumn.linkWithValue( indexValue );
list.setIndex( indexValue );
list.setBaseIndex( indexColumn.getBase() );
if ( list.isOneToMany() && !list.getKey().isNullable() && !list.isInverse() ) {
String entityName = ( (OneToMany) list.getElement() ).getReferencedEntityName();
PersistentClass referenced = mappings.getClass( entityName );
IndexBackref ib = new IndexBackref();
ib.setName( '_' + propertyName + "IndexBackref" );
ib.setUpdateable( false );
ib.setSelectable( false );
ib.setCollectionRole( list.getRole() );
ib.setEntityName( list.getOwner().getEntityName() );
ib.setValue( list.getIndex() );
referenced.addProperty( ib );
}
}
else {
Collection coll = this.collection;
throw new AnnotationException(
"List/array has to be annotated with an @IndexColumn: "
+ coll.getRole()
);
}
}
}