Java Collection Add addSafe(final Collection collection, T element)

Description

Similar to Collection.add() but only allows non-null elements.

License

Open Source License

Return

true if this collection changed as a result of the call

Declaration

public static <T> boolean addSafe(final Collection<T> collection, T element) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010-2014 SAP AG and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:/*from   ww w.  j av  a 2s.  co  m*/
 *     SAP AG - initial API and implementation
 *******************************************************************************/

import java.util.Collection;

public class Main {
    /**
     * Similar to Collection.add() but only allows non-null elements.
     *
     * @return <code>true</code> if this collection changed as a result of the call
     */
    public static <T> boolean addSafe(final Collection<T> collection, T element) {
        if (element != null) {
            return collection.add(element);
        } else {
            return false;
        }
    }
}

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6. addTo(Collection l, Object... os)
7. addTo(E element, C collection)
8. addTo(Map> map, K key, V value)
9. addToCollection(C collection, E... elements)