//$Id: CollectionSecondPass.java 10194 2006-08-03 07:53:09Z [email protected] $
package org.hibernate.cfg;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.MappingException;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.IndexedCollection;
import org.hibernate.mapping.OneToMany;
import org.hibernate.mapping.Selectable;
import org.hibernate.mapping.Value;
/**
* Collection second pass
*
* @author Emmanuel Bernard
*/
public abstract class CollectionSecondPass implements SecondPass {
private static Log log = LogFactory.getLog( CollectionSecondPass.class );
Mappings mappings;
Collection collection;
private Map localInheritedMetas;
public CollectionSecondPass(Mappings mappings, Collection collection, java.util.Map inheritedMetas) {
this.collection = collection;
this.mappings = mappings;
this.localInheritedMetas = inheritedMetas;
}
public CollectionSecondPass(Mappings mappings, Collection collection) {
this(mappings, collection, Collections.EMPTY_MAP);
}
public void doSecondPass(java.util.Map persistentClasses)
throws MappingException {
if ( log.isDebugEnabled() )
log.debug( "Second pass for collection: " + collection.getRole() );
secondPass( persistentClasses, localInheritedMetas ); // using local since the inheritedMetas at this point is not the correct map since it is always the empty map
collection.createAllKeys();
if ( log.isDebugEnabled() ) {
String msg = "Mapped collection key: " + columns( collection.getKey() );
if ( collection.isIndexed() )
msg += ", index: " + columns( ( (IndexedCollection) collection ).getIndex() );
if ( collection.isOneToMany() ) {
msg += ", one-to-many: "
+ ( (OneToMany) collection.getElement() ).getReferencedEntityName();
}
else {
msg += ", element: " + columns( collection.getElement() );
}
log.debug( msg );
}
}
abstract public void secondPass(java.util.Map persistentClasses, java.util.Map inheritedMetas)
throws MappingException;
private static String columns(Value val) {
StringBuffer columns = new StringBuffer();
Iterator iter = val.getColumnIterator();
while ( iter.hasNext() ) {
columns.append( ( (Selectable) iter.next() ).getText() );
if ( iter.hasNext() ) columns.append( ", " );
}
return columns.toString();
}
}
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