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org.apache.flink.util.CollectionUtil Maven / Gradle / Ivy
/*
* 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;
/**
* Simple utility to work with Java collections.
*/
@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();
}
}
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