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The MongoDB Java Driver uber-artifact, containing mongodb-driver, mongodb-driver-core, and bson

There is a newer version: 3.1.0

/*
 * Copyright (c) 2008-2014 MongoDB, 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.
 */

// UniqueList.java

package com.mongodb.util;

import java.util.ArrayList;
import java.util.Collection;

/**
 * @deprecated This class is NOT a part of public API and will be dropped in 3.x versions.
 */
@Deprecated
public class UniqueList extends ArrayList {

    private static final long serialVersionUID = -4415279469780082174L;

    public boolean add( T t ){
        if ( contains( t ) )
            return false;
        return super.add( t );
    }
    
    public boolean addAll(Collection c) {
        boolean added = false;
        for ( T t : c )
            added = added || add( t );
        return added;
    }

}