org.apache.openjpa.jdbc.meta.strats.AbstractClassStrategy Maven / Gradle / Ivy
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* distributed with this work for additional information
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* 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
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*/
package org.apache.openjpa.jdbc.meta.strats;
import java.sql.SQLException;
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.ClassStrategy;
import org.apache.openjpa.jdbc.sql.Joins;
import org.apache.openjpa.jdbc.sql.Result;
import org.apache.openjpa.jdbc.sql.Select;
import org.apache.openjpa.kernel.OpenJPAStateManager;
import org.apache.openjpa.kernel.PCState;
import org.apache.openjpa.lib.rop.ResultObjectProvider;
/**
* No-op strategy for easy extension.
*
* @author Abe White
*/
public abstract class AbstractClassStrategy
extends AbstractStrategy
implements ClassStrategy {
/**
* The owning class mapping.
*/
protected ClassMapping cls = null;
public void setClassMapping(ClassMapping owner) {
cls = owner;
}
public boolean isPrimaryKeyObjectId(boolean hasAll) {
return false;
}
public Joins joinSuperclass(Joins joins, boolean toThis) {
return joins;
}
public boolean supportsEagerSelect(Select sel, OpenJPAStateManager sm,
JDBCStore store, ClassMapping base, JDBCFetchConfiguration fetch) {
return true;
}
public ResultObjectProvider customLoad(JDBCStore store, boolean subclasses,
JDBCFetchConfiguration fetch, long startIdx, long endIdx)
throws SQLException {
return null;
}
public boolean customLoad(OpenJPAStateManager sm, JDBCStore store,
PCState state, JDBCFetchConfiguration fetch)
throws SQLException, ClassNotFoundException {
return false;
}
public boolean customLoad(OpenJPAStateManager sm, JDBCStore store,
JDBCFetchConfiguration fetch, Result result)
throws SQLException {
return false;
}
}