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/***********************************************************************************************************************
 * Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
 *
 * 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 eu.stratosphere.api.common;

/**
 * Implementing this interface allows a Program to have a description
 * of the plan which can be shown to the user. For a more detailed description
 * of what should be included in the description see getDescription().
 */
public interface ProgramDescription {
	
	/**
	 * Returns a description of the plan that is generated by the assembler and
	 * also of the arguments if they are available. The description should be simple
	 * text as it may be rendered in different environments (console, web interface, ...).
	 * Typical things that should be included are:
	 * 
	 *   expected input format
	 *   description of output
	 *   description of what is done
	 *   description of arguments to customize plan if available
	 * 
	 * 
	 * @return A description of the program and of its arguments if available.
	 */
	String getDescription();
}