See: Description
Interface | Description |
---|---|
TemplatesHandler |
A SAX ContentHandler that may be used to process SAX
parse events (parsing transformation instructions) into a Templates object.
|
TransformerHandler |
A TransformerHandler
listens for SAX ContentHandler parse events and transforms
them to a Result.
|
Class | Description |
---|---|
SAXResult |
Acts as an holder for a transformation Result.
|
SAXSource |
Acts as an holder for SAX-style Source.
|
SAXTransformerFactory |
This class extends TransformerFactory to provide SAX-specific
factory methods.
|
This package implements SAX2-specific transformation APIs. It provides
classes which allow input from ContentHandler
events, and also classes that produce org.xml.sax.ContentHandler events. It
also provides methods to set the input source as an
XMLReader
, or to use a
InputSource
as the source. It also allows the
creation of a XMLFilter
, which enables
transformations to "pull" from other transformations, and lets the transformer
to be used polymorphically as an XMLReader
.
The SAXSource
class allows the
setting of an XMLReader
to be used for "pulling"
parse events, and an InputSource
that may be used to
specify the SAX source.
The SAXResult
class allows the
setting of a ContentHandler
to be the receiver of
SAX2 events from the transformation.
The SAXTransformerFactory
extends
TransformerFactory
to provide factory
methods for creating TemplatesHandler
,
TransformerHandler
, and
XMLReader
instances.
To obtain a SAXTransformerFactory
,
the caller must cast the TransformerFactory
instance returned from
TransformerFactory.newInstance()
.
The TransformerHandler
interface
allows a transformation to be created from SAX2 parse events, which is a "push"
model rather than the "pull" model that normally occurs for a transformation.
Normal parse events are received through the
ContentHandler
interface, lexical events such as
startCDATA and endCDATA are received through the
LexicalHandler
interface, and events that signal
the start or end of disabling output escaping are received via
ContentHandler.processingInstruction(java.lang.String, java.lang.String)
, with the
target parameter being
Result.PI_DISABLE_OUTPUT_ESCAPING
and
Result.PI_ENABLE_OUTPUT_ESCAPING
. If
parameters, output properties, or other features need to be set on the
Transformer handler, a Transformer
reference
will need to be obtained from
TransformerHandler.getTransformer()
, and
the methods invoked from that reference.
The TemplatesHandler
interface
allows the creation of Templates
objects
from SAX2 parse events. Once the ContentHandler
events are complete, the Templates object may be obtained from
TemplatesHandler.getTemplates()
. Note that
TemplatesHandler.setSystemId(java.lang.String)
should
normally be called in order to establish a base system ID from which relative
URLs may be resolved.
The
SAXTransformerFactory.newXMLFilter(javax.xml.transform.Source)
method allows the creation of a XMLFilter
, which
encapsulates the SAX2 notion of a "pull" transformation. The following
illustrates several transformations chained together. Each filter points to a
parent XMLReader
, and the final transformation is
caused by invoking XMLReader.parse(org.xml.sax.InputSource)
on the final
reader in the chain.
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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