CollectionUtil.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.flink.util;

import org.apache.flink.annotation.Internal;

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

@Internal
public final class CollectionUtil {

	private CollectionUtil() {
		throw new AssertionError();
	}

	public static boolean isNullOrEmpty(Collection<?> collection) {
		return collection == null || collection.isEmpty();
	}

	public static boolean isNullOrEmpty(Map<?, ?> map) {
		return map == null || map.isEmpty();
	}
}