Package net.sf.saxon.evpull
Class PullEventTracer
java.lang.Object
net.sf.saxon.evpull.PullEventTracer
- All Implemented Interfaces:
EventIterator
,PullEvent
Diagnostic class to display the sequence of events reported by an EventIterator
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Constructor Summary
ConstructorsConstructorDescriptionPullEventTracer
(EventIterator base, Configuration config) Create a tracer for pull events -
Method Summary
Modifier and TypeMethodDescriptionboolean
Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iteratorsstatic void
Main method for testing onlynext()
Get the next event in the sequence
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Constructor Details
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PullEventTracer
Create a tracer for pull events- Parameters:
base
- the event iterator whose events are to be tracedconfig
- the Saxon configuration
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Method Details
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next
Get the next event in the sequence- Specified by:
next
in interfaceEventIterator
- Returns:
- the next event, or null when the sequence is exhausted. Note that since an EventIterator is itself a PullEvent, this method may return a nested iterator.
- Throws:
XPathException
- if a dynamic evaluation error occurs
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isFlatSequence
public boolean isFlatSequence()Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iterators- Specified by:
isFlatSequence
in interfaceEventIterator
- Returns:
- true if the next() method is guaranteed never to return an EventIterator
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main
Main method for testing only- Parameters:
args
- not used- Throws:
Exception
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