gogo/src/org/osgi/service/command/Function.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.service.command;

import java.util.*;

/**
 * A Function is a a block of code that can be executed with a set of arguments,
 * it returns the result object of executing the script.
 */
public interface Function {
	/**
	 * Execute this function and return the result.
	 * 
	 * @return the result from the execution.
	 * 
	 * @throws Exception
	 *             if anything goes terribly wrong
	 */
	Object execute(CommandSession session, List<Object> arguments)
			throws Exception;
}