/*
* Copyright 2004-2008 the original author or authors.
*
* Licensed 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.springframework.webflow.execution.repository;
import org.springframework.webflow.execution.FlowExecutionKey;
/**
* Thrown when the flow execution with the persistent identifier provided could not be found. This could occur if the
* execution has been removed from the repository and a client still has a handle to the key.
*
* @author Keith Donald
* @author Erwin Vervaet
*/
public class NoSuchFlowExecutionException extends FlowExecutionAccessException {
/**
* Creates a new no such flow execution exception.
* @param flowExecutionKey the key of the execution that could not be found
* @param cause the root cause of the failure
*/
public NoSuchFlowExecutionException(FlowExecutionKey flowExecutionKey, Exception cause) {
super(flowExecutionKey, "No flow execution could be found with key '" + flowExecutionKey
+ "' -- perhaps this executing flow has ended or expired? "
+ "This could happen if your users are relying on browser history "
+ "(typically via the back button) that references ended flows.", cause);
}
}