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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.qpid.client.failover;
/**
* Defines the possible states of the failover process; not started, in progress, failed.
*
* <p/><table id="crc"><caption>CRC Card</caption>
* <tr><th> Responsibilities <th> Collaborations
* <tr><td> Represent a one of the states of the fail-over process.
* </table>
*/
public final class FailoverState
{
/** The string description on this state. */
private final String _state;
/** Failover has not yet been attempted on this connection. */
public static final FailoverState NOT_STARTED = new FailoverState("NOT STARTED");
/** Failover has been requested on this connection but has not completed. */
public static final FailoverState IN_PROGRESS = new FailoverState("IN PROGRESS");
/** Failover has been attempted and failed. */
public static final FailoverState FAILED = new FailoverState("FAILED");
/**
* Creates a type safe enumeration of a fail-over state.
*
* @param state The fail-over state description string.
*/
private FailoverState(String state)
{
_state = state;
}
/**
* Prints this state, mainly for debugging purposes.
*
* @return The string description of this state.
*/
public String toString()
{
return "FailoverState: " + _state;
}
}
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