asterix-metadata/src/main/java/org/apache/asterix/metadata/api/IMetadataEntity.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.asterix.metadata.api;

import java.io.Serializable;

import org.apache.asterix.metadata.MetadataCache;

public interface IMetadataEntity extends Serializable {

    public static final int PENDING_NO_OP = 0;
    public static final int PENDING_ADD_OP = 1;
    public static final int PENDING_DROP_OP = 2;

    Object addToCache(MetadataCache cache);

    Object dropFromCache(MetadataCache cache);
}