/**
* 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.apache.aurora.scheduler.state;
/**
* The result of a task state change request.
*/
public enum StateChangeResult {
/**
* Task is already in target state.
*/
NOOP,
/**
* Task state has been changed successfully.
*/
SUCCESS,
/**
* Change is illegal given the current task state.
*/
ILLEGAL,
/**
* Same as {@link #ILLEGAL} but processing state change request generated some task side effects
* (e.g.: a driver.kill() request has been placed).
*/
ILLEGAL_WITH_SIDE_EFFECTS,
/**
* Change is not allowed due to the task not in CAS state.
*/
INVALID_CAS_STATE
}