Package org.hibernate.ogm.datastore.map.impl

Source Code of org.hibernate.ogm.datastore.map.impl.MapAssociationSnapshot

/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA  02110-1301, USA.
*/
package org.hibernate.ogm.datastore.map.impl;

import java.util.Map;
import java.util.Set;

import org.hibernate.ogm.datastore.impl.MapTupleSnapshot;
import org.hibernate.ogm.datastore.spi.AssociationSnapshot;
import org.hibernate.ogm.datastore.spi.Tuple;
import org.hibernate.ogm.grid.RowKey;

/**
* @author Emmanuel Bernard <emmanuel@hibernate.org>
* @author Sanne Grinovero <sanne@hibernate.org> (C) 2011 Red Hat Inc.
*/
public class MapAssociationSnapshot implements AssociationSnapshot {

  private final Map<RowKey, Map<String, Object>> associationMap;

  public MapAssociationSnapshot(Map<RowKey, Map<String, Object>> associationMap) {
    this.associationMap = associationMap;
  }

  @Override
  public Tuple get(RowKey column) {
    Map<String, Object> rawResult = associationMap.get( column );
    return rawResult != null ? new Tuple( new MapTupleSnapshot( rawResult ) ) : null;
  }

  @Override
  public boolean containsKey(RowKey column) {
    return associationMap.containsKey( column );
  }

  @Override
  public int size() {
    return associationMap.size();
  }

  @Override
  public Set<RowKey> getRowKeys() {
    return associationMap.keySet();
  }

  public Map<RowKey, Map<String, Object>> getUnderlyingMap() {
    return associationMap;
  }

}
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