http://fastutil.di.unimi.it/: fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.
  • Sebastiano Vigna 
/*
	* Copyright (C) 2003-2019 Paolo Boldi and Sebastiano Vigna
	*
	* 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.
	*/
package it.unimi.dsi.fastutil.ints;
import it.unimi.dsi.fastutil.IndirectPriorityQueue;

A type-specific IndirectPriorityQueue. 
 Additionally, this interface strengthens comparator(). 
/**
 * A type-specific {@link IndirectPriorityQueue}.
 *
 * <p>
 * Additionally, this interface strengthens {@link #comparator()}.
 */
public interface IntIndirectPriorityQueue extends IndirectPriorityQueue<Integer> {
	
Returns the type-specific comparator associated with this queue.

 Note that this specification strengthens the one given in IndirectPriorityQueue. 
See Also:
Returns:the comparator associated with this queue.
/**
	 * Returns the type-specific comparator associated with this queue.
	 *
	 * <p>
	 * Note that this specification strengthens the one given in
	 * {@link IndirectPriorityQueue}.
	 *
	 * @return the comparator associated with this queue.
	 * @see IndirectPriorityQueue#comparator()
	 */
	@Override
	IntComparator comparator();
}