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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2000-2005 Sun Microsystems, Inc. All Rights Reserved.
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DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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This code is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License version 2 only, as
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published by the Free Software Foundation. Sun designates this
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particular file as subject to the "Classpath" exception as provided
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by Sun in the LICENSE file that accompanied this code.
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This code is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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version 2 for more details (a copy is included in the LICENSE file that
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accompanied this code).
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You should have received a copy of the GNU General Public License version
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2 along with this work; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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CA 95054 USA or visit www.sun.com if you need additional information or
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have any questions.
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-->
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>javax.xml.transform.sax</title>
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<meta name="CVS"
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content="$Id: package.html,v 1.2 2005/06/10 03:50:41 jeffsuttor Exp $" />
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<meta name="AUTHOR"
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content="Jeff.Suttor@Sun.com" />
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</head>
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<body>
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<p>This package implements SAX2-specific transformation APIs. It provides
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classes which allow input from {@link org.xml.sax.ContentHandler}
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events, and also classes that produce org.xml.sax.ContentHandler events. It
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also provides methods to set the input source as an
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{@link org.xml.sax.XMLReader}, or to use a
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{@link org.xml.sax.InputSource} as the source. It also allows the
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creation of a {@link org.xml.sax.XMLFilter}, which enables
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transformations to "pull" from other transformations, and lets the transformer
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to be used polymorphically as an {@link org.xml.sax.XMLReader}.</p>
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<p>The {@link javax.xml.transform.sax.SAXSource} class allows the
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setting of an {@link org.xml.sax.XMLReader} to be used for "pulling"
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parse events, and an {@link org.xml.sax.InputSource} that may be used to
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specify the SAX source.</p>
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<p>The {@link javax.xml.transform.sax.SAXResult} class allows the
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setting of a {@link org.xml.sax.ContentHandler} to be the receiver of
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SAX2 events from the transformation.
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<p>The {@link javax.xml.transform.sax.SAXTransformerFactory} extends
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{@link javax.xml.transform.TransformerFactory} to provide factory
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methods for creating {@link javax.xml.transform.sax.TemplatesHandler},
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{@link javax.xml.transform.sax.TransformerHandler}, and
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{@link org.xml.sax.XMLReader} instances.</p>
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<p>To obtain a {@link javax.xml.transform.sax.SAXTransformerFactory},
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the caller must cast the {@link javax.xml.transform.TransformerFactory}
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instance returned from
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{@link javax.xml.transform.TransformerFactory#newInstance}.
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<p>The {@link javax.xml.transform.sax.TransformerHandler} interface
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allows a transformation to be created from SAX2 parse events, which is a "push"
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model rather than the "pull" model that normally occurs for a transformation.
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Normal parse events are received through the
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{@link org.xml.sax.ContentHandler} interface, lexical events such as
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startCDATA and endCDATA are received through the
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{@link org.xml.sax.ext.LexicalHandler} interface, and events that signal
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the start or end of disabling output escaping are received via
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{@link org.xml.sax.ContentHandler#processingInstruction}, with the
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target parameter being
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{@link javax.xml.transform.Result#PI_DISABLE_OUTPUT_ESCAPING} and
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{@link javax.xml.transform.Result#PI_ENABLE_OUTPUT_ESCAPING}. If
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parameters, output properties, or other features need to be set on the
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Transformer handler, a {@link javax.xml.transform.Transformer} reference
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will need to be obtained from
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{@link javax.xml.transform.sax.TransformerHandler#getTransformer}, and
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the methods invoked from that reference.
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<p>The {@link javax.xml.transform.sax.TemplatesHandler} interface
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allows the creation of {@link javax.xml.transform.Templates} objects
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from SAX2 parse events. Once the {@link org.xml.sax.ContentHandler}
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events are complete, the Templates object may be obtained from
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{@link javax.xml.transform.sax.TemplatesHandler#getTemplates}. Note that
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{@link javax.xml.transform.sax.TemplatesHandler#setSystemId} should
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normally be called in order to establish a base system ID from which relative
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URLs may be resolved.
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<p>The
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{@link javax.xml.transform.sax.SAXTransformerFactory#newXMLFilter}
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method allows the creation of a {@link org.xml.sax.XMLFilter}, which
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encapsulates the SAX2 notion of a "pull" transformation. The following
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illustrates several transformations chained together. Each filter points to a
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parent {@link org.xml.sax.XMLReader}, and the final transformation is
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caused by invoking {@link org.xml.sax.XMLReader#parse} on the final
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reader in the chain.</p>
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</body>
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</html>
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