Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (c) 2013 Christian Pelster.
 * 
 * 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:
 *     Christian Pelster - initial API and implementation
 */

import java.util.Collection;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

public class Main {
    public static <T> T addIfNotExists(Collection<T> collection, Predicate<T> predicate, T element) {

        if (!Iterables.contains(collection, predicate)) {
            collection.add(element);
        }

        return element;
    }
}