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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.hadoop.yarn.state;
/**
* Hook for Transition. This lead to state machine to move to
* the post state as registered in the state machine.
*/
public interface SingleArcTransition<OPERAND, EVENT> {
/**
* Transition hook.
*
* @param operand the entity attached to the FSM, whose internal
* state may change.
* @param event causal event
*/
public void transition(OPERAND operand, EVENT event);
}