Package org.apache.xmlgraphics.ps.dsc
Class FilteringEventListener
- java.lang.Object
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- org.apache.xmlgraphics.ps.dsc.FilteringEventListener
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- All Implemented Interfaces:
DSCListener
public class FilteringEventListener extends java.lang.Object implements DSCListener
DSCListener
implementation that filters certain DSC events.
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Constructor Summary
Constructors Constructor Description FilteringEventListener(DSCFilter filter)
Main constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
processEvent(DSCEvent event, DSCParser parser)
Called for each DSC event.
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Constructor Detail
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FilteringEventListener
public FilteringEventListener(DSCFilter filter)
Main constructor.- Parameters:
filter
- the filter
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Method Detail
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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 interfaceDSCListener
- Parameters:
event
- the DSC eventparser
- the DSC parser- Throws:
java.io.IOException
- if an I/O error occursDSCException
- if a DSC-specific error occurs
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