yakworks.util.CollectionUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of groovy-commons Show documentation

common groovy and java utils

There is a newer version: 3.14

/*
 * Copyright 2002-2022 the original author or authors.
 *
 * 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
 *
 *      https://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 yakworks.util;

import jakarta.annotation.Nullable;

import java.util.Collection;
import java.util.Map;

/**
 * Miscellaneous collection utility methods.
 * Mainly for internal use within the framework.
 *
 * @author Juergen Hoeller
 * @author Rob Harrop
 * @author Arjen Poutsma
 * @since 1.1.3
 */
public abstract class CollectionUtils {

	/**
	 * Return {@code true} if the supplied Collection is {@code null} or empty.
	 * Otherwise, return {@code false}.
	 * @param collection the Collection to check
	 * @return whether the given Collection is empty
	 */
	public static boolean isEmpty(@Nullable Collection collection) {
		return (collection == null || collection.isEmpty());
	}

	/**
	 * Return {@code true} if the supplied Map is {@code null} or empty.
	 * Otherwise, return {@code false}.
	 * @param map the Map to check
	 * @return whether the given Map is empty
	 */
	public static boolean isEmpty(@Nullable Map map) {
		return (map == null || map.isEmpty());
	}

}