java.lang.Object
org.apache.jena.reasoner.rulesys.impl.FrameObject
org.apache.jena.reasoner.rulesys.impl.GenericChoiceFrame
org.apache.jena.reasoner.rulesys.impl.GenericTripleMatchFrame
org.apache.jena.reasoner.rulesys.impl.TripleMatchFrame
Frame on the choice point stack used to represent the state of a direct
graph triple match.
This is used in the inner loop of the interpreter and so is a pure data structure not an abstract data type and assumes privileged access to the interpreter state.
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionvoid
close()
Override close method to reclaim the iterator.void
init
(LPInterpreter interpreter) Initialize the triple match to preserve the current context of the given LPInterpreter and search for the match defined by the current argument registersboolean
nextMatch
(LPInterpreter interpreter) Find the next result triple and bind the result vars appropriately.Methods inherited from class org.apache.jena.reasoner.rulesys.impl.GenericTripleMatchFrame
bindResult, functorMatch
Methods inherited from class org.apache.jena.reasoner.rulesys.impl.GenericChoiceFrame
setContinuation
Methods inherited from class org.apache.jena.reasoner.rulesys.impl.FrameObject
fastLinkTo, getLink, linkTo
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Constructor Details
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TripleMatchFrame
Constructor. Initialize the triple match to preserve the current context of the given LPInterpreter and search for the match defined by the current argument registers- Parameters:
interpreter
- the interpreter instance whose env, trail and arg values are to be preserved
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Method Details
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nextMatch
Find the next result triple and bind the result vars appropriately.- Parameters:
interpreter
- the calling interpreter whose trail should be used- Returns:
- false if there are no more matches in the iterator.
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init
Initialize the triple match to preserve the current context of the given LPInterpreter and search for the match defined by the current argument registers- Overrides:
init
in classGenericTripleMatchFrame
- Parameters:
interpreter
- the interpreter instance whose env, trail and arg values are to be preserved
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close
public void close()Override close method to reclaim the iterator.- Overrides:
close
in classFrameObject
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