DBObject.java example

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// DBObject.java

/**
 *      Copyright (C) 2008 10gen Inc.
 *  
 *   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.bson;

import java.util.*;

import org.bson.*;

/** A key-value map that can be saved to the database. */
public interface DBObject extends BSONObject {
    
    /**
     * if this object was loaded with only some fields (using a field filter)
     * this method will be called to notify 
     */
    public void markAsPartialObject();

    /**
     * whether markAsPartialObject was ever called
     * only matters if you are going to upsert and dont' want to risk losing fields
     */
    public boolean isPartialObject();

}