Package net.sf.saxon.pattern
Class NodeTestPattern
- java.lang.Object
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- net.sf.saxon.pattern.Pattern
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- net.sf.saxon.pattern.NodeTestPattern
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- All Implemented Interfaces:
java.io.Serializable
,javax.xml.transform.SourceLocator
,Container
public class NodeTestPattern extends Pattern
A NodeTestPattern is a pattern that consists simply of a NodeTest.- Author:
- Michael H. Kay
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description NodeTestPattern()
NodeTestPattern(NodeTest test)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getDefaultPriority()
Determine the default priority of this node test when used on its own as a Patternint
getFingerprint()
Determine the name fingerprint of nodes to which this pattern applies.int
getNodeKind()
Determine the types of nodes to which this pattern applies.NodeTest
getNodeTest()
Get a NodeTest that all the nodes matching this pattern must satisfyboolean
matches(NodeInfo node, XPathContext context)
Determine whether this Pattern matches the given Node.void
setNodeTest(NodeTest test)
java.lang.String
toString()
Display the pattern for diagnostics-
Methods inherited from class net.sf.saxon.pattern.Pattern
analyze, getColumnNumber, getDependencies, getExecutable, getHostLanguage, getLineNumber, getLocationProvider, getPublicId, getSystemId, internalMatches, iterateSubExpressions, make, promote, replaceSubExpression, setExecutable, setLineNumber, setOriginalText, setSystemId, simplify
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Constructor Detail
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NodeTestPattern
public NodeTestPattern()
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NodeTestPattern
public NodeTestPattern(NodeTest test)
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Method Detail
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setNodeTest
public void setNodeTest(NodeTest test)
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matches
public boolean matches(NodeInfo node, XPathContext context)
Determine whether this Pattern matches the given Node. This is the main external interface for matching patterns: it sets current() to the node being tested- Specified by:
matches
in classPattern
- Parameters:
node
- The NodeInfo representing the Element or other node to be tested against the Patterncontext
- The context in which the match is to take place. Only relevant if the pattern uses variables, or contains calls on functions such as document() or key(). Not used (and can be set to null) in the case of patterns that are NodeTests- Returns:
- true if the node matches the Pattern, false otherwise
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getNodeTest
public NodeTest getNodeTest()
Get a NodeTest that all the nodes matching this pattern must satisfy- Specified by:
getNodeTest
in classPattern
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getDefaultPriority
public final double getDefaultPriority()
Determine the default priority of this node test when used on its own as a Pattern- Overrides:
getDefaultPriority
in classPattern
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getNodeKind
public int getNodeKind()
Determine the types of nodes to which this pattern applies. Used for optimisation. For patterns that match nodes of several types, return Type.NODE- Overrides:
getNodeKind
in classPattern
- Returns:
- the type of node matched by this pattern. e.g. Type.ELEMENT or Type.TEXT
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getFingerprint
public int getFingerprint()
Determine the name fingerprint of nodes to which this pattern applies. Used for optimisation.- Overrides:
getFingerprint
in classPattern
- Returns:
- A fingerprint that the nodes must match, or -1 if it can match multiple fingerprints
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