/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.datastore.ehcache.dialect.impl;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.hibernate.ogm.datastore.map.impl.MapTupleSnapshot;
import org.hibernate.ogm.model.key.spi.RowKey;
import org.hibernate.ogm.model.spi.AssociationSnapshot;
import org.hibernate.ogm.model.spi.Tuple;
/**
* An {@link AssociationSnapshot} based on a serializable map.
*
* @author Emmanuel Bernard <emmanuel@hibernate.org>
* @author Sanne Grinovero <sanne@hibernate.org> (C) 2011 Red Hat Inc.
* @author Gunnar Morling
*/
public final class SerializableMapAssociationSnapshot implements AssociationSnapshot {
private final Map<SerializableRowKey, Map<String, Object>> associationMap;
public SerializableMapAssociationSnapshot(Map<SerializableRowKey, Map<String, Object>> associationMap) {
this.associationMap = associationMap;
}
@Override
public Tuple get(RowKey column) {
Map<String, Object> rawResult = associationMap.get( new SerializableRowKey( column ) );
return rawResult != null ? new Tuple( new MapTupleSnapshot( rawResult ) ) : null;
}
@Override
public boolean containsKey(RowKey column) {
return associationMap.containsKey( new SerializableRowKey( column ) );
}
@Override
public int size() {
return associationMap.size();
}
@Override
public Set<RowKey> getRowKeys() {
Set<RowKey> rowKeys = new HashSet<RowKey>( associationMap.size() );
for ( SerializableRowKey key : associationMap.keySet() ) {
rowKeys.add( new RowKey( key.getColumnNames(), key.getColumnValues() ) );
}
return rowKeys;
}
public Map<SerializableRowKey, Map<String, Object>> getUnderlyingMap() {
return associationMap;
}
}