content: /*
   * Copyright (c) OSGi Alliance 2015. All Rights Reserved.
   *
   * 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.osgi.util.function;
  
  /**
   * A function that accepts a single argument and produces a result.
   * <p>
   * This is a functional interface and can be used as the assignment target for a lambda expression or method reference.
   *
   * @param <T> The type of the function input.
   * @param <R> The type of the function output.
   */
  @org.osgi.annotation.versioning.ConsumerType
  public interface Function<T, R> {
  
      /**
       * Applies this function to the specified argument.
       * @param t The input to this function.
       * @return The output of this function.
       * @throws An Exception
       */
      R apply(T t) throws Exception;
  }
  