xmlgraphics-commons 1.4

org.apache.xmlgraphics.ps.dsc
Class DefaultNestedDocumentHandler

java.lang.Object
  extended by org.apache.xmlgraphics.ps.dsc.DefaultNestedDocumentHandler
All Implemented Interfaces:
DSCListener, DSCParserConstants, NestedDocumentHandler

public class DefaultNestedDocumentHandler
extends java.lang.Object
implements DSCParserConstants, NestedDocumentHandler, DSCListener

DSCListener implementation which automatically skips data between Begin/EndDocument and Begin/EndData.


Field Summary
 
Fields inherited from interface org.apache.xmlgraphics.ps.dsc.DSCParserConstants
COMMENT, DSC_COMMENT, EOF, HEADER_COMMENT, LINE
 
Constructor Summary
DefaultNestedDocumentHandler(PSGenerator gen)
          Creates a new instance.
 
Method Summary
 void handle(DSCEvent event, DSCParser parser)
          Handle a DSC event.
 void processEvent(DSCEvent event, DSCParser parser)
          Called for each DSC event.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultNestedDocumentHandler

public DefaultNestedDocumentHandler(PSGenerator gen)
Creates a new instance.

Parameters:
gen - PSGenerator to pass through the skipped content
Method Detail

handle

public void handle(DSCEvent event,
                   DSCParser parser)
            throws java.io.IOException,
                   DSCException
Handle a DSC event. Implementations may issue additional calls to the DSC parser and may modify its state. When returning from the call, state information such as filters should be restored.

Specified by:
handle in interface NestedDocumentHandler
Parameters:
event - the DSC event to handle
parser - the DSC parser to work with
Throws:
java.io.IOException - In case of an I/O error
DSCException - In case of a violation of the DSC spec

processEvent

public void processEvent(DSCEvent event,
                         DSCParser parser)
                  throws java.io.IOException,
                         DSCException
Called for each DSC event. You can call methods on the DSC parser to skip comments, for example. But implementations need to be good citizens and take into account that multiple listeners can be active at the same time and that they might interfere with other listeners. When returning from the call, state information such as filters should be restored.

Specified by:
processEvent in interface DSCListener
Parameters:
event - the DSC event
parser - the DSC parser
Throws:
java.io.IOException - if an I/O error occurs
DSCException - if a DSC-specific error occurs

xmlgraphics-commons 1.4

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