org.apache.batik.bridge.BridgeExtension Maven / Gradle / Ivy
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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
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http://www.apache.org/licenses/LICENSE-2.0
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*/
package org.apache.batik.bridge;
import java.util.Iterator;
import org.w3c.dom.Element;
/**
* This is a Service interface for classes that want to extend the
* functionality of the Bridge, to support new tags in the rendering tree.
*
* @author Thomas DeWeese
* @version $Id: BridgeExtension.java 1733416 2016-03-03 07:07:13Z gadams $
*/
public interface BridgeExtension {
/**
* Return the priority of this Extension. Extensions are
* registered from lowest to highest priority. So if for some
* reason you need to come before/after another existing extension
* make sure your priority is lower/higher than theirs.
*/
float getPriority();
/**
* This should return the list of extensions implemented
* by this BridgeExtension, these are added to the list of
* requiredExtensions that the User Agent supports for purposes
* of the 'switch' element in SVG.
* @return An iterator containing strings one for each implemented
* extension.
*/
Iterator getImplementedExtensions();
/**
* This should return the individual or company name responsible
* for the this implementation of the extension.
*/
String getAuthor();
/**
* This should return a contact address (usually an e-mail address).
*/
String getContactAddress();
/**
* This should return a URL where information can be obtained on
* this extension.
*/
String getURL();
/**
* Human readable description of the extension.
* Perhaps that should be a resource for internationalization?
* (although I suppose it could be done internally)
*/
String getDescription();
/**
* This method should update the BridgeContext with support
* for the tags in this extension. In some rare cases it may
* be necessary to replace existing tag handlers, although this
* is discouraged.
*
* @param ctx The BridgeContext instance to be updated
*/
void registerTags(BridgeContext ctx);
/**
* Whether the presence of the specified element should cause
* the document to be dynamic. If this element isn't handled
* by this BridgeExtension, just return false.
*
* @param e The element to check.
*/
boolean isDynamicElement(Element e);
}