001/* 002 * Copyright 2006-2007 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 */ 016package org.springframework.batch.core.job.flow.support.state; 017 018import java.util.Collection; 019 020import org.springframework.batch.core.job.flow.FlowExecution; 021import org.springframework.batch.core.job.flow.FlowExecutionStatus; 022 023/** 024 * Strategy interface for aggregating {@link FlowExecution} instances into a 025 * single exit status. 026 * 027 * @author Dave Syer 028 * @since 2.0 029 */ 030public interface FlowExecutionAggregator { 031 032 /** 033 * @param executions the executions to aggregate 034 * @return a summary status for the whole lot 035 */ 036 FlowExecutionStatus aggregate(Collection<FlowExecution> executions); 037 038}