CollectionUtils.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.jena.atlas.lib;

import java.util.Collection ;

public class CollectionUtils
{   
    public static <T> boolean disjoint(Collection<T> c1, Collection<T> c2)
    {
		return c1.stream().noneMatch(c2::contains);
    }
    
    /** Test for same elements, regarless of cardinality */ 
    public static <T> boolean sameElts(Collection<T> left, Collection<T> right) {
        return right.containsAll(left) && left.containsAll(right) ;
    }
}