Here you can find the source of isCollectionType(Class cls)
Parameter | Description |
---|---|
cls | class to check |
public static boolean isCollectionType(Class<?> cls)
//package com.java2s; /*/*w w w . ja v a 2s . c o m*/ * Copyright 2014-2017 JKOOL, LLC. * * 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. */ import java.util.*; public class Main { /** * Checks if provided class represents an array class or is implementation of {@link java.util.Collection}. * * @param cls * class to check * @return {@code true} if cls is implementation of {@link java.util.Collection} or represents an array class, * {@code false} - otherwise */ public static boolean isCollectionType(Class<?> cls) { return cls != null && (cls.isArray() || Collection.class.isAssignableFrom(cls)); } /** * Checks if provided object is an array - of primitives or objects. * * @param obj * object to check * @return {@code true} if obj is an array, {@code false} - otherwise */ public static boolean isArray(Object obj) { return obj instanceof Object[] || (obj != null && obj.getClass().isArray()); } }