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java.lang.Object com.saxonica.validate.AbstractWatch com.saxonica.stream.watch.ComposingWatch com.saxonica.stream.watch.VoidWatch
public class VoidWatch
This class is a Watch that always returns an empty sequence as its result.
Constructor Summary | |
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VoidWatch(Feed result,
Stack<XPathContext> contextStack)
Create the singleton VoidWatch |
Method Summary | |
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void |
endSelectedParentNode(int locationId)
Signal that the endElement event has occurred for the element whose startElement event caused the Watch to be activated. |
void |
notifySelectedLeafNode(FleetingNode node,
int locationId)
Signal that a node (other than an element) that matches the selection has been found. |
Receiver |
startSelectedParentNode(FleetingNode node,
int locationId)
Signal that an element has been found that matches the selection that this Watch is looking for. |
Methods inherited from class com.saxonica.stream.watch.ComposingWatch |
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close, getContext, getContextStack, getResult, open |
Methods inherited from class com.saxonica.validate.AbstractWatch |
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getAnchorNode, getNamespaceResolver, getPipelineConfiguration, getSelection, setAnchorNode, setNamespaceResolver, setPipelineConfiguration, setSelection |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public VoidWatch(Feed result, Stack<XPathContext> contextStack)
Method Detail |
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public Receiver startSelectedParentNode(FleetingNode node, int locationId) throws XPathException
node
- the element or document node whose start event has been matchedlocationId
- the location associated with the element or document node (may be
the location of the instruction that created it)
ValidationException
- May be raised if the constraint implemented by this
Watch is violated @param locationId
XPathException
public void notifySelectedLeafNode(FleetingNode node, int locationId) throws XPathException
notifySelectedLeafNode
in interface Watch
notifySelectedLeafNode
in class AbstractWatch
node
- the node that was matched.locationId
-
XPathException
public void endSelectedParentNode(int locationId) throws XPathException
locationId
- the location of the element
ValidationException
- May be raised if the constraint implemented by this
Watch is violated @param locationId
XPathException
- May be raised if a constraint implemented by this
Watch is violated
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