org.apache.openjpa.kernel.FindCallbacks Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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*/
package org.apache.openjpa.kernel;
/**
* Allows facades to control the particulars of the find operation
* through callbacks.
*
* @author Abe White
*/
public interface FindCallbacks {
/**
* Process find argument. Throw proper
* {@link org.apache.openjpa.util.OpenJPAException} for illegal value.
*
* @return the id to look up, or null to ignore this argument
*/
public Object processArgument(Object oid);
/**
* Process operation return value.
*
* @return the object to return
*/
public Object processReturn(Object oid, OpenJPAStateManager sm);
}