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Groovy example source code file (

This example Groovy source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

io, ioexception, ioexception, writable, writable, writer, writer

The Groovy source code

 * Copyright 2003-2007 the original author or authors.
 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package groovy.lang;


 * <p>Represents an object which is capable of writing itself to a text stream
 * in a more efficient format than just creating a toString() representation
 * of itself. This mechanism is particularly useful for templates and such like.
 * </p>
 * <p>It is worth noting that writable implementations often override their 
 * toString() implementation as well to allow rendering the same result 
 * directly to a String; however this is not required.</p>
 * @author <a href="">James Strachan
 * @version $Revision: 18909 $
public interface Writable {

     * <p>Writes this object to the given writer.

* * <p>This is used to defer content creation until the point when it is * streamed to the output destination. Oftentimes, content will be defined * but not necessarily created (as is may be the case with a Closure * definition.) In that case, the output is then 'deferred' to the point * when it is serialized to the writer. This class may be used whenever an * object should be responsible for creating its own textual representation, * but creating the entire output as a single String would be inefficient * (such as outputting a multi-gigabyte XML document.)</p> * * @param out the Writer to which this Writable should output its data. * @return the Writer that was passed * @throws IOException if an error occurred while outputting data to the * writer */ Writer writeTo(Writer out) throws IOException; }

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