Function.java

/*
 * Copyright Terracotta, Inc.
 *
 * 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 org.ehcache.core.spi.function;

/**
 * Generic function interface for transforming an argument into a value.
 *
 * @param <A> the function parameter type
 * @param <T> the function result type
 *
 * @author Alex Snaps
 */
public interface Function<A,T> {

  /**
   * Applies the function to the provided value
   *
   * @param a the value to apply the function to
   * @return the function result
   */
  T apply(A a);
}