libraries/scheduler/src/main/java/org/apache/zest/library/scheduler/OnceSchedule.java

/*
 * 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.zest.library.scheduler;

import org.apache.zest.api.mixin.Mixins;

@Mixins( OnceSchedule.OnceScheduleMixin.class )
public interface OnceSchedule
    extends Schedule
{
    abstract class OnceScheduleMixin
        implements OnceSchedule
    {
        @Override
        public void taskStarting()
        {
        }

        @Override
        public void taskCompletedSuccessfully()
        {
        }

        @Override
        public void taskCompletedWithException( Throwable ex )
        {
        }

        @Override
        public long nextRun( long from )
        {
            if( done().get() )
            {
                return Long.MIN_VALUE;
            }
            done().set( true );
            long runAt = start().get().getMillis();
            if( runAt >= from )
            {
                return runAt;
            }
            return from;
        }

        @Override
        public String presentationString()
        {
            return start().get().toString();
        }
    }
}