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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.openjpa.jdbc.meta.strats;
import java.sql.SQLException;
import org.apache.openjpa.jdbc.identifier.DBIdentifier;
import org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration;
import org.apache.openjpa.jdbc.kernel.JDBCStore;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.ClassMappingInfo;
import org.apache.openjpa.jdbc.schema.Column;
import org.apache.openjpa.jdbc.schema.PrimaryKey;
import org.apache.openjpa.jdbc.schema.Table;
import org.apache.openjpa.jdbc.sql.DBDictionary;
import org.apache.openjpa.jdbc.sql.Row;
import org.apache.openjpa.jdbc.sql.RowManager;
import org.apache.openjpa.jdbc.sql.Select;
import org.apache.openjpa.kernel.OpenJPAStateManager;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.meta.JavaTypes;
import org.apache.openjpa.meta.ValueStrategies;
import org.apache.openjpa.util.MetaDataException;
/**
* Mapping for when the class maps all fields to its own table.
*
* @author Abe White
*/
public class FullClassStrategy
extends AbstractClassStrategy {
public static final String ALIAS = "full";
private static final Localizer _loc = Localizer.forPackage
(FullClassStrategy.class);
public String getAlias() {
return ALIAS;
}
public void map(boolean adapt) {
if (cls.getEmbeddingMetaData() != null)
throw new MetaDataException(_loc.get("not-full", cls));
ClassMapping sup = cls.getMappedPCSuperclassMapping();
ClassMappingInfo info = cls.getMappingInfo();
if (sup != null && info.isJoinedSubclass())
throw new MetaDataException(_loc.get("not-full", cls));
info.assertNoJoin(cls, true);
info.assertNoForeignKey(cls, !adapt);
info.assertNoIndex(cls, false);
info.assertNoUnique(cls, false);
// find class table
Table table = info.getTable(cls, adapt);
// find primary key column
Column[] pkCols = null;
if (cls.getIdentityType() == cls.ID_DATASTORE) {
Column id = new Column();
DBDictionary dict = cls.getMappingRepository().getDBDictionary();
DBIdentifier idName = DBIdentifier.newColumn("id", dict != null ? dict.delimitAll() : false);
id.setIdentifier(idName);
id.setJavaType(JavaTypes.LONG);
id.setComment("datastore id");
if (cls.getIdentityStrategy() == ValueStrategies.AUTOASSIGN)
id.setAutoAssigned(true);
id.setNotNull(true);
pkCols = info.getDataStoreIdColumns(cls, new Column[]{ id },
table, adapt);
cls.setPrimaryKeyColumns(pkCols);
cls.setColumnIO(info.getColumnIO());
}
cls.setTable(table);
// add a primary key if we don't have one already
PrimaryKey pk = table.getPrimaryKey();
if (pk == null) {
DBIdentifier pkname = DBIdentifier.NULL;
if (adapt)
pkname = cls.getMappingRepository().getMappingDefaults().
getPrimaryKeyIdentifier(cls, table);
pk = table.addPrimaryKey(pkname);
pk.setLogical(!adapt);
if (pkCols != null)
pk.setColumns(pkCols);
}
// set joinable
if (cls.getIdentityType() == ClassMapping.ID_DATASTORE)
cls.setJoinable(cls.getPrimaryKeyColumns()[0],
new IdentityJoinable(cls));
}
public boolean supportsEagerSelect(Select sel, OpenJPAStateManager sm,
JDBCStore store, ClassMapping base, JDBCFetchConfiguration fetch) {
return false;
}
public void insert(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = rm.getRow(cls.getTable(), Row.ACTION_INSERT, sm, true);
if (cls.getIdentityType() == cls.ID_DATASTORE)
row.setPrimaryKey(cls.getColumnIO(), sm);
}
public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = rm.getRow(cls.getTable(), Row.ACTION_UPDATE, sm, false);
if (row != null)
row.wherePrimaryKey(sm);
}
public void delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = rm.getRow(cls.getTable(), Row.ACTION_DELETE, sm, true);
row.wherePrimaryKey(sm);
}
public boolean isPrimaryKeyObjectId(boolean hasAll) {
return true;
}
}
