Java Collection Check isCollectionOrArray(final Object obj)

Description

Return true for objects that are collections or arrays (i.e.

License

Open Source License

Declaration

static boolean isCollectionOrArray(final Object obj) 

Method Source Code

//package com.java2s;
/*/*from w ww.ja  v  a2s . co m*/
 * This file is part of ClassGraph.
 *
 * Author: Luke Hutchison
 *
 * Hosted at: https://github.com/lukehutch/fast-classpath-scanner
 *
 * --
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 Luke Hutchison
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without
 * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
 * EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 * OR OTHER DEALINGS IN THE SOFTWARE.
 */

import java.util.Collection;

public class Main {
    /**
     * Return true for objects that are collections or arrays (i.e. objects that are convertible to a JSON array).
     */
    static boolean isCollectionOrArray(final Object obj) {
        final Class<? extends Object> cls = obj.getClass();
        return Collection.class.isAssignableFrom(cls) || cls.isArray();
    }
}

Related

1. isCollection(Object value)
2. isCollection(String type)
3. isCollectional(final Class type)
4. isCollectionOrArray(Class type)
5. isCollectionOrArray(final Class cls)
6. isCollectionOrArrayType(Class typeToCheck)
7. isCollectionType(Class aClass)
8. isCollectionType(Class type)
9. isCollectionType(Class cls)