Checks if the given list contains a specific object value by comparing the string version. - Java java.util

Java examples for java.util:List Compare

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Description

Checks if the given list contains a specific object value by comparing the string version.

Demo Code

/*/*from w w w  .  j  av a 2  s . c o  m*/
 * Copyright 2015 Couchbase, 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 com.java2s;

import java.util.List;

public class Main {
    public static void main(String[] argv) {
        List list = java.util.Arrays.asList("asdf", "java2s.com");
        Object obj = "java2s.com";
        System.out.println(contains(list, obj));
    }

    /**
     * Checks if the given list contains a specific object value by comparing the
     * string version.
     * 
     * This is necessary becuase we sometimes don't want to work with exactly 
     * the same instance on the client side but with a temp. instance which
     * is fetched on demand but reperesents the same object
     * 
     * @param list
     * @param obj
     * @return 
     */
    public static boolean contains(List list, Object obj) {
        for (Object entry : list) {

            if (entry.toString().equals(obj.toString()))
                return true;
        }

        return false;
    }
}

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