Package gnu.kawa.xml
Class TreeScanner
java.lang.Object
gnu.mapping.PropertySet
gnu.mapping.Procedure
gnu.mapping.ProcedureN
gnu.mapping.MethodProc
gnu.kawa.xml.TreeScanner
- All Implemented Interfaces:
Named
,Externalizable
,Serializable
- Direct Known Subclasses:
AncestorAxis
,AncestorOrSelfAxis
,AttributeAxis
,ChildAxis
,DescendantAxis
,DescendantOrSelfAxis
,FollowingAxis
,FollowingSiblingAxis
,ParentAxis
,PrecedingAxis
,PrecedingSiblingAxis
,SelfAxis
Abstract class that scans part of a node tree.
Takes a node argument, and writes matching "relative" nodes
out to a PositionConsumer as a sequence of position pairs.
This is uses to implement "path expressions" as in XPath/XSLT/XQuery.
For example, the ChildAxis sub-class writes out all child nodes
of the argument that match the 'type' NodePredicate.
- See Also:
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Field Summary
FieldsFields inherited from class gnu.mapping.MethodProc
applyToConsumerDefaultMP, argTypes, NO_MATCH, NO_MATCH_AMBIGUOUS, NO_MATCH_BAD_TYPE, NO_MATCH_GUARD_FALSE, NO_MATCH_TOO_FEW_ARGS, NO_MATCH_TOO_MANY_ARGS, NO_MATCH_UNUSED_KEYWORD, THROW_ON_EXCEPTION
Fields inherited from class gnu.mapping.ProcedureN
applyToObject, noArgs
Fields inherited from class gnu.mapping.Procedure
applyMethodType, applyToConsumerDefault, applyToConsumerMethod, applyToObjectDefault, applyToObjectMethod, compilerKey, compilerXKey, inlineIfConstantSymbol, validateApplyKey, validateXApplyKey
Fields inherited from class gnu.mapping.PropertySet
nameKey
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Method Summary
Modifier and TypeMethodDescriptionstatic Object
applyToConsumerTS
(Procedure proc, CallContext ctx) getDesc()
int
numArgs()
ReturnminArgs()|(maxArgs<<12)
.void
abstract void
scan
(AbstractSequence seq, int ipos, PositionConsumer out) toString()
void
Methods inherited from class gnu.mapping.MethodProc
applyToConsumerDefaultMP, getParameterType, isApplicable, matchFailAsException, mostSpecific, numParameters, overrideEquivalent, resolveParameterTypes
Methods inherited from class gnu.mapping.ProcedureN
applyToObject
Methods inherited from class gnu.mapping.Procedure
apply0, apply1, apply2, apply3, apply4, applyL, applyN, applyToConsumerDefault, applyToObjectDefault, checkArgCount, checkBadCode, getApplyMethod, getApplyToConsumerMethod, getApplyToObjectMethod, getReturnType, getSetter, getSourceLocation, isSideEffectFree, lookupApplyHandle, maxArgs, maxArgs, minArgs, minArgs, set0, set1, setN, setSetter, setSourceLocation
Methods inherited from class gnu.mapping.PropertySet
getName, getProperty, getSymbol, removeProperty, setName, setProperty, setProperty, setSymbol
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Field Details
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applyToConsumerTS
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type
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Method Details
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getNodePredicate
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scan
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numArgs
public int numArgs()Description copied from class:Procedure
ReturnminArgs()|(maxArgs<<12)
. We use a single virtual function to reduce the number of methods in the system, as well as the number of virtual method table entries. We shift by 12 so the number can normally be represented using a sipush instruction, without requiring a constant pool entry. -
applyToConsumerTS
- Throws:
Throwable
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writeExternal
- Specified by:
writeExternal
in interfaceExternalizable
- Throws:
IOException
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readExternal
- Specified by:
readExternal
in interfaceExternalizable
- Throws:
IOException
ClassNotFoundException
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getDesc
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toString
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