/*
* Copyright 2002,2004 The Apache Software Foundation.
*
* 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.apache.commons.jelly;
/**
* <p><code>Script</code> represents a Jelly script.
* A Script <b>must</b> be thread safe so care should be taken on the
* implementations of Scripts. However Tags are only used in a single thread
* (each thread will have create its own Tags for the Script it is running)
* so multi threading is not a concern for Tag developers.</p>
*
* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
* @version $Revision: 155420 $
*/
public interface Script {
/** Called by the parser to allow a more efficient
* representation of the script to be used.
*/
public Script compile() throws JellyException;
/** Evaluates the body of a tag */
public void run(JellyContext context, XMLOutput output) throws JellyTagException;
}
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