public final class IDPattern extends Pattern
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IDPattern(Expression id)
Create an id pattern.
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?????? | ????? |
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int |
allocateSlots(StaticContext env,
SlotManager slotManager,
int nextFree)
Allocate slots to any variables used within the pattern
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Pattern |
analyze(ExpressionVisitor visitor,
ItemType contextItemType)
Type-check the pattern.
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boolean |
equals(java.lang.Object other)
Determine whether this pattern is the same as another pattern
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int |
getDependencies()
Get the dependencies of the pattern.
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int |
getNodeKind()
Determine the type of nodes to which this pattern applies.
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NodeTest |
getNodeTest()
Get a NodeTest that all the nodes matching this pattern must satisfy
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int |
hashCode()
Hashcode supporting equals()
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java.util.Iterator |
iterateSubExpressions()
Iterate over the subexpressions within this pattern
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boolean |
matches(NodeInfo e,
XPathContext context)
Determine whether this Pattern matches the given Node
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void |
promote(PromotionOffer offer)
Offer promotion for subexpressions within this pattern.
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boolean |
replaceSubExpression(Expression original,
Expression replacement)
Replace one subexpression by a replacement subexpression
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getColumnNumber, getDefaultPriority, getExecutable, getFingerprint, getHostLanguage, getLineNumber, getLocationProvider, getPublicId, getSystemId, internalMatches, make, makeSearchExpression, selectNodes, setExecutable, setLineNumber, setOriginalText, setSystemId, simplify, toString
public IDPattern(Expression id)
id
- Either a StringValue or a VariableReferencepublic Pattern analyze(ExpressionVisitor visitor, ItemType contextItemType) throws XPathException
analyze
??? Pattern
visitor
- the expression visitorcontextItemType
- the type of the context item, if known, at the point where the pattern
is definedXPathException
public int getDependencies()
getDependencies
??? Pattern
public java.util.Iterator iterateSubExpressions()
iterateSubExpressions
??? Pattern
public void promote(PromotionOffer offer) throws XPathException
Unlike the corresponding method on Expression
, this method does not return anything:
it can make internal changes to the pattern, but cannot return a different pattern. Only certain
kinds of promotion are applicable within a pattern: specifically, promotions affecting local
variable references within the pattern.
promote
??? Pattern
offer
- details of the offer, for example the offer to move
expressions that don't depend on the context to an outer level in
the containing expressionXPathException
- if any error is detectedpublic boolean replaceSubExpression(Expression original, Expression replacement)
Container
replaceSubExpression
???? Container
replaceSubExpression
??? Pattern
original
- the original subexpressionreplacement
- the replacement subexpressionpublic int allocateSlots(StaticContext env, SlotManager slotManager, int nextFree)
allocateSlots
??? Pattern
env
- the static context in the XSLT stylesheetslotManager
- the slot manager representing the stack frame for local variablesnextFree
- the next slot that is free to be allocated @return the next slot that is free to be allocatedpublic boolean matches(NodeInfo e, XPathContext context) throws XPathException
matches
??? Pattern
e
- The NodeInfo representing the Element or other node to be tested against the Patterncontext
- The dynamic context. Only relevant if the pattern
uses variables, or contains calls on functions such as document() or key().XPathException
public int getNodeKind()
getNodeKind
??? Pattern
public NodeTest getNodeTest()
getNodeTest
??? Pattern
public boolean equals(java.lang.Object other)
equals
??? java.lang.Object
other
- the other objectpublic int hashCode()
hashCode
??? java.lang.Object