Java Collection Null isNull(Collection collection)

Description

Returns true if the collection is null or empty

License

Open Source License

Parameter

Parameter	Description
collection	a parameter

Declaration

@Deprecated
public static boolean isNull(Collection<?> collection) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2014, 2016 Chaupal./* www.j  a v a  2 s  .  co  m*/
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Apache License, Version 2.0
 * which accompanies this distribution, and is available at
 * http://www.apache.org/licenses/LICENSE-2.0.html
 *******************************************************************************/

import java.util.Collection;

public class Main {
    /**
     * returns true if the string is null or empty
     * @param str
     * @return
     * @deprecated Use assertNull
     */
    @Deprecated
    public static final boolean isNull(String str) {
        return ((str == null) || (str.trim().length() == 0));
    }

    /**
     * Returns true if the collection is null or empty
     * @param collection
     * @return
     * @deprecated Use assertNull
     */
    @Deprecated
    public static boolean isNull(Collection<?> collection) {
        return ((collection == null) || (collection.isEmpty()));
    }

    /**
     * Returns true if the collection is null or empty
     * @param collection
     * @return
     * @deprecated Use assertNull
     */
    @Deprecated
    public static boolean isNull(Object[] collection) {
        return ((collection == null) || (collection.length == 0));
    }
}

Related

1. isNull(Collection collection)
2. isNull(Collection collection)
3. isNull(Collection c)
4. isNull(Collection collection)
5. isNull(Collection collection)
6. nullSafe(Collection collection)
7. nullSafe(Collection collection)
8. nullSafe(Collection in)
9. nullSafeCollection(Collection source)