/*
* 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;
import java.io.Serializable;
import org.springframework.webflow.execution.repository.FlowExecutionRepository;
/**
* A key that uniquely identifies a flow execution in a managed {@link FlowExecutionRepository}. Serves as a flow
* execution's persistent identity.
* <p>
* This class is abstract. The repository subsystem encapsulates the structure of concrete key implementations.
*
* @author Keith Donald
*/
public abstract class FlowExecutionKey implements Serializable {
public abstract boolean equals(Object o);
public abstract int hashCode();
public abstract String toString();
}