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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.

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/*
 * Copyright (C) 2002-2017 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 PACKAGE;

import it.unimi.dsi.fastutil.Hash;

/** A type-specific {@link Hash} interface.
 *
 * @see Hash
 */

public interface HASH {

	/** 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.
		 *
		 * @param e an element.
		 * @return the hash code of the given element with respect to this hash strategy.
		 */

		int hashCode(KEY_TYPE e);

		/** 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(KEY_TYPE a, KEY_TYPE b);
	}
}