001/* 002 * Copyright 2006-2013 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.batch.core.job.flow.support.state; 018 019import java.util.Collection; 020import java.util.Collections; 021 022import org.springframework.batch.core.job.flow.Flow; 023import org.springframework.batch.core.job.flow.FlowExecutionStatus; 024import org.springframework.batch.core.job.flow.FlowExecutor; 025import org.springframework.batch.core.job.flow.FlowHolder; 026 027/** 028 * State that delegates to a Flow 029 * 030 * @author Dave Syer 031 * @since 2.0 032 */ 033public class FlowState extends AbstractState implements FlowHolder { 034 035 private final Flow flow; 036 037 /** 038 * @param flow the {@link Flow} to delegate to. 039 * @param name the name of the state. 040 */ 041 public FlowState(Flow flow, String name) { 042 super(name); 043 this.flow = flow; 044 } 045 046 /** 047 * @return the flows 048 */ 049 @Override 050 public Collection<Flow> getFlows() { 051 return Collections.singleton(flow); 052 } 053 054 @Override 055 public FlowExecutionStatus handle(FlowExecutor executor) throws Exception { 056 return flow.start(executor).getStatus(); 057 } 058 059 /* (non-Javadoc) 060 * @see org.springframework.batch.core.job.flow.State#isEndState() 061 */ 062 @Override 063 public boolean isEndState() { 064 return false; 065 } 066 067}