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) 2002-2019 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.booleans;
import it.unimi.dsi.fastutil.Hash;

A type-specific Hash interface. 
See Also:
/**
 * A type-specific {@link Hash} interface.
 *
 * @see Hash
 */
public interface BooleanHash {
	
A type-specific hash strategy.

See Also:
  • Strategy
/**
	 * A type-specific hash strategy.
	 *
	 * @see it.unimi.dsi.fastutil.Hash.Strategy
	 */
	interface Strategy {
		
Returns the hash code of the specified element with respect to this hash
strategy.

Params:
  • e – 
           an element.
Returns:the hash code of the given element with respect to this hash
        strategy.
/**
		 * Returns the hash code of the specified element with respect to this hash
		 * strategy.
		 *
		 * @param e
		 *            an element.
		 * @return the hash code of the given element with respect to this hash
		 *         strategy.
		 */
		int hashCode(boolean e);
		
Returns true if the given elements are equal with respect to this hash
strategy.

Params:
  • a – 
           an element.
  • b – 
           another element.
Returns:true if the two specified elements are equal with respect to this
        hash strategy.
/**
		 * Returns true if the given elements are equal with respect to this hash
		 * strategy.
		 *
		 * @param a
		 *            an element.
		 * @param b
		 *            another element.
		 * @return true if the two specified elements are equal with respect to this
		 *         hash strategy.
		 */
		boolean equals(boolean a, boolean b);
	}
}