src/java/org/apache/jcs/engine/control/event/behavior/IElementEventConstants.java

package org.apache.jcs.engine.control.event.behavior;


/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * 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.
 */


/**
 *  This describes the events that an item can encounter.
 *
 */
public interface IElementEventConstants
{

    /**
     *  Background expiration
     */
    public final static int ELEMENT_EVENT_EXCEEDED_MAXLIFE_BACKGROUND = 0;

    /**
     *  Expiration discovered on request
     */
    public final static int ELEMENT_EVENT_EXCEEDED_MAXLIFE_ONREQUEST = 1;


    /**
     *  Background expiration
     */
    public final static int ELEMENT_EVENT_EXCEEDED_IDLETIME_BACKGROUND = 2;

    /**
     *  Expiration discovered on request
     */
    public final static int ELEMENT_EVENT_EXCEEDED_IDLETIME_ONREQUEST = 3;

    /**
     *  Moving from memory to disk (what if no disk?)
     */
    public final static int ELEMENT_EVENT_SPOOLED_DISK_AVAILABLE = 4;

    /**
     *  Moving from memory to disk (what if no disk?)
     */
    public final static int ELEMENT_EVENT_SPOOLED_DISK_NOT_AVAILABLE = 5;

    
    /**
     *  Moving from memory to disk, but item is not spoolable
     */
    public final static int ELEMENT_EVENT_SPOOLED_NOT_ALLOWED = 6;
    
    /**
     *  Removed activley by a remove command. (Could distinguish between local
     *  and remote)
     */
    //public final static int ELEMENT_EVENT_REMOVED = 7;

    /**
     *  Element was requested from cache.
     *  Not sure we ever want to implement this.
     */
    //public final static int ELEMENT_EVENT_GET = 8;

}