001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.model; 018 019import org.apache.wicket.util.io.IClusterable; 020 021/** 022 * Interface to logic for detaching transient information from a detachable model. Detachable models 023 * are desirable because they reduce the amount of state required by a model, which makes the model 024 * cheaper to replicate in a clustered environment. 025 * 026 * @author Jonathan Locke 027 */ 028public interface IDetachable extends IClusterable 029{ 030 /** 031 * Detaches model after use. This is generally used to null out transient references that can be 032 * re-attached later. 033 */ 034 void detach(); 035}