public final class AncestorQualifiedPattern extends Pattern
EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, UPDATE_METHOD, WATCH_METHOD
Constructor and Description |
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AncestorQualifiedPattern(Pattern base,
Pattern upper,
byte axis) |
Modifier and Type | Method and Description |
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int |
allocateSlots(SlotManager slotManager,
int nextFree)
Allocate slots to any variables used within the pattern
|
void |
bindCurrent(LocalBinding binding)
Replace any calls on current() by a variable reference bound to the supplied binding
|
int |
computeHashCode()
hashcode supporting equals()
|
Pattern |
convertToTypedPattern(java.lang.String val)
Convert the pattern to a typed pattern, in which an element name is treated as
schema-element(N)
|
Pattern |
copy(RebindingMap rebindings)
Copy a pattern.
|
boolean |
equals(java.lang.Object other)
Determine whether this pattern is the same as another pattern
|
void |
export(ExpressionPresenter presenter)
Diagnostic print of expression structure.
|
Pattern |
getBasePattern()
Get the base pattern, the pattern applying to the node itself
|
int |
getDependencies()
Get the dependencies of the pattern.
|
int |
getFingerprint()
Determine the fingerprint of nodes to which this pattern applies.
|
ItemType |
getItemType()
Get a NodeTest that all the nodes matching this pattern must satisfy
|
Pattern |
getUpperPattern()
Get the pattern applying to the parent node, if there is one
|
byte |
getUpwardsAxis()
Get the upwards axis, that is, the axis by which the upper pattern is reached.
|
UType |
getUType()
Get a UType indicating which kinds of items this Pattern can match.
|
boolean |
isMotionless()
Test whether a pattern is motionless, that is, whether it can be evaluated against a node
without repositioning the input stream.
|
boolean |
matches(Item item,
XPathContext context)
Determine whether the pattern matches a given item.
|
boolean |
matchesBeneathAnchor(NodeInfo node,
NodeInfo anchor,
XPathContext context)
Determine whether this pattern matches a given Node within the subtree rooted at a given
anchor node.
|
boolean |
matchesCurrentGroup()
Ask whether the pattern is anchored on a call on current-group()
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java.lang.Iterable<Operand> |
operands()
Get the immediate sub-expressions of this expression, with information about the relationship
of each expression to its parent expression.
|
Pattern |
simplify()
Simplify the pattern: perform any context-independent optimisations
|
java.lang.String |
toString()
Get the original pattern text
|
Pattern |
typeCheck(ExpressionVisitor visitor,
ContextItemStaticInfo contextItemType)
Type-check the pattern, performing any type-dependent optimizations.
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effectiveBooleanValue, getDefaultPriority, getHostLanguage, handleDynamicError, isLiftable, isRecoverable, make, optimize, patternContainsVariable, replaceCurrent, selectNodes, setOriginalText, setPriority, setRecoverable, toShortString
computeCardinality, evaluateAsString, evaluateItem, getImplementationMethod, iterate, process
addToPathMap, adoptChildExpression, allowExtractingCommonSubexpressions, checkedOperands, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeSpecialProperties, computeStaticProperties, dynamicError, evaluatePendingUpdates, explain, getCardinality, getConfiguration, getConstructType, getCost, getEvaluationMethod, getExpressionName, getExtraProperty, getIntegerBounds, getInterpretedExpression, getIntrinsicDependencies, getLocalRetainedStaticContext, getLocation, getNetCost, getObjectName, getPackageData, getParentExpression, getProperties, getProperty, getRetainedStaticContext, getScopingExpression, getSlotsUsed, getSpecialProperties, getStaticBaseURI, getStaticBaseURIString, getStaticType, getStaticUType, getStreamerName, hasCompatibleStaticContext, hashCode, hasVariableBinding, identityHashCode, implementsStaticTypeCheck, isCallOn, isCallOnSystemFunction, isIdentical, isInstruction, isMultiThreaded, isSameExpression, isStaticPropertiesKnown, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, markTailFunctionCalls, operandList, operandSparseList, optimizeChildren, resetLocalStaticProperties, restoreParentPointers, setEvaluationMethod, setExtraProperty, setFiltered, setFlattened, setLocation, setParentExpression, setRetainedStaticContext, setRetainedStaticContextLocally, setRetainedStaticContextThoroughly, setStaticProperty, simplifyChildren, staticTypeCheck, suppressValidation, toPattern, typeCheckChildren, typeError, unordered, verifyParentPointers, verifyParentPointers
public java.lang.Iterable<Operand> operands()
If the expression is a Callable, then it is required that the order of the operands returned by this function is the same as the order of arguments supplied to the corresponding call() method.
operands
in class Expression
public void bindCurrent(LocalBinding binding)
bindCurrent
in class Pattern
public Pattern getBasePattern()
public Pattern getUpperPattern()
public byte getUpwardsAxis()
public boolean isMotionless()
isMotionless
in class Pattern
public boolean matchesCurrentGroup()
Pattern
matchesCurrentGroup
in class Pattern
public Pattern simplify() throws XPathException
simplify
in class Pattern
XPathException
- if an error is discovered during expression
rewritingpublic Pattern typeCheck(ExpressionVisitor visitor, ContextItemStaticInfo contextItemType) throws XPathException
typeCheck
in class Pattern
visitor
- an expression visitorcontextItemType
- the type of the context item at the point where the pattern appearsXPathException
- if an error is discovered during this phase
(typically a type error)public int getDependencies()
getDependencies
in class Pattern
public int allocateSlots(SlotManager slotManager, int nextFree)
allocateSlots
in class Pattern
slotManager
- keeps track of slotsnextFree
- the next slot that is free to be allocated @return the next slot that is free to be allocatedpublic boolean matches(Item item, XPathContext context) throws XPathException
matches
in class Pattern
item
- the item to be testedcontext
- The dynamic context.XPathException
- if an error occurs while matching the pattern (the caller will usually
treat this the same as a false result)public boolean matchesBeneathAnchor(NodeInfo node, NodeInfo anchor, XPathContext context) throws XPathException
matchesBeneathAnchor
in class Pattern
node
- The NodeInfo representing the Element or other node to be tested against the Patternanchor
- The anchor node, which must match any AnchorPattern subpatterncontext
- The dynamic context. Only relevant if the pattern
uses variables, or contains calls on functions such as document() or key().XPathException
- if an error occurs while matching the pattern (the caller will usually
treat this the same as a false result)public UType getUType()
public int getFingerprint()
getFingerprint
in class Pattern
public ItemType getItemType()
getItemType
in class Pattern
public Pattern convertToTypedPattern(java.lang.String val) throws XPathException
convertToTypedPattern
in class Pattern
val
- either "strict" or "lax" depending on the value of xsl:mode/@typedXPathException
- if the pattern cannot be convertedpublic java.lang.String toString()
public boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- the other objectpublic int computeHashCode()
computeHashCode
in class Expression
public void export(ExpressionPresenter presenter) throws XPathException
Expression
export
in interface ExportAgent
export
in class Pattern
presenter
- the expression presenter used to display the structureXPathException
- if the export fails, for example if an expression is found that won't work
in the target environment.public Pattern copy(RebindingMap rebindings)
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