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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.merge;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.MappingNamespace;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.util.EntityMergeSupport;
/**
* Common abstract superclass for all {@link MergerToken}s going from the database to the
* model.
*
* @author halset
*/
public abstract class AbstractToModelToken implements MergerToken {
public final MergeDirection getDirection() {
return MergeDirection.TO_MODEL;
}
protected void synchronizeWithObjEntity(DbEntity entity) {
for (ObjEntity objEntity : objEntitiesMappedToDbEntity(entity)) {
new EntityMergeSupport(objEntity.getDataMap())
.synchronizeWithDbEntity(objEntity);
}
}
protected Collection<ObjEntity> objEntitiesMappedToDbEntity(DbEntity entity) {
Set<ObjEntity> objEntities = new HashSet<ObjEntity>();
MappingNamespace mns = entity.getDataMap().getNamespace();
for (ObjEntity objEntity : mns.getObjEntities()) {
if (objEntity.getDbEntity() == null) {
continue;
}
if (objEntity.getDbEntity().equals(entity)) {
objEntities.add(objEntity);
}
}
return objEntities;
}
@Override
public String toString() {
StringBuilder ts = new StringBuilder();
ts.append(getTokenName());
ts.append(' ');
ts.append(getTokenValue());
ts.append(' ');
ts.append(getDirection());
return ts.toString();
}
}