001/* 002 * Copyright 2002-2008 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.transaction.support; 018 019/** 020 * Generic interface to be implemented by resource holders. 021 * Allows Spring's transaction infrastructure to introspect 022 * and reset the holder when necessary. 023 * 024 * @author Juergen Hoeller 025 * @since 2.5.5 026 * @see ResourceHolderSupport 027 * @see ResourceHolderSynchronization 028 */ 029public interface ResourceHolder { 030 031 /** 032 * Reset the transactional state of this holder. 033 */ 034 void reset(); 035 036 /** 037 * Notify this holder that it has been unbound from transaction synchronization. 038 */ 039 void unbound(); 040 041 /** 042 * Determine whether this holder is considered as 'void', 043 * i.e. as a leftover from a previous thread. 044 */ 045 boolean isVoid(); 046 047}