/*
* This file is part of "SnipSnap Radeox Rendering Engine".
*
* Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
* All Rights Reserved.
*
* Please visit http://radeox.org/ for updates and contact.
*
* --LICENSE NOTICE--
* 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.
* --LICENSE NOTICE--
*/
package org.radeox.api.macro;
import java.io.IOException;
import java.io.Writer;
import org.radeox.api.engine.context.InitialRenderContext;
/*
* Class that implements base functionality to write macros @author stephan
*
* @version $Id: Macro.java 29047 2007-04-18 07:40:45Z ian@caret.cam.ac.uk $
*/
public interface Macro extends Comparable
{
/**
* Get the name of the macro. This is used to map a macro in the input to
* the macro which should be called. The method has to be implemented by
* subclassing classes.
*
* @return name Name of the Macro
*/
public String getName();
/**
* Get a description of the macro. This description explains in a short way
* what the macro does
*
* @return description A string describing the macro
*/
public String getDescription();
/**
* Get a description of the paramters of the macro. The method returns an
* array with an String entry for every parameter. The format is {"1:
* description", ...} where 1 is the position of the parameter.
*
* @return description Array describing the parameters of the macro
*/
public String[] getParamDescription();
public void setInitialContext(InitialRenderContext context);
/**
* Execute the macro. This method is called by MacroFilter to handle macros.
*
* @param writer
* A write where the macro should write its output to
* @param params
* Macro parameters with the parameters the macro is called with
*/
public void execute(Writer writer, MacroParameter params)
throws IllegalArgumentException, IOException;
}