| /* |
| * 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.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 |
| */ |
| Object processArgument(Object oid); |
| |
| /** |
| * Process operation return value. |
| * |
| * @return the object to return |
| */ |
| Object processReturn(Object oid, OpenJPAStateManager sm); |
| } |