/*
* 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.openjpa.jdbc.meta.strats;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.ClassMappingInfo;
import org.apache.openjpa.jdbc.schema.Table;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.util.MetaDataException;
/**
* Mapping for classes mapped to their superclass table.
*
* @author Abe White
*/
public class FlatClassStrategy
extends AbstractClassStrategy {
public static final String ALIAS = "flat";
private static final Localizer _loc = Localizer.forPackage
(FlatClassStrategy.class);
public String getAlias() {
return ALIAS;
}
public void map(boolean adapt) {
ClassMapping sup = cls.getMappedPCSuperclassMapping();
if (sup == null || cls.getEmbeddingMetaData() != null)
throw new MetaDataException(_loc.get("not-sub", cls));
ClassMappingInfo info = cls.getMappingInfo();
info.assertNoSchemaComponents(cls, true);
if (info.getTableName() != null) {
Table table = info.createTable(cls, null, info.getSchemaName(),
info.getTableName(), false);
if (table != sup.getTable())
throw new MetaDataException(_loc.get("flat-table", cls,
table.getFullName(), sup.getTable().getFullName()));
}
cls.setTable(sup.getTable());
cls.setPrimaryKeyColumns(sup.getPrimaryKeyColumns());
cls.setColumnIO(sup.getColumnIO());
}
public boolean isPrimaryKeyObjectId(boolean hasAll) {
return cls.getMappedPCSuperclassMapping().isPrimaryKeyObjectId(hasAll);
}
}