Class PairsElements
- java.lang.Object
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- org.projog.core.predicate.AbstractSingleResultPredicate
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- org.projog.core.predicate.builtin.list.PairsElements
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- All Implemented Interfaces:
KnowledgeBaseConsumer,PredicateFactory
public final class PairsElements extends AbstractSingleResultPredicate
pairs_keys(Pairs,Keys)/pairs_values(Pairs,Values)- get keys or values from list of Key-Value pairs.
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Field Summary
Fields Modifier and Type Field Description private intargumentIdx
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Constructor Summary
Constructors Modifier Constructor Description privatePairsElements(int argumentIdx)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanevaluate(Term pairs, Term values)static PairsElementskeys()static PairsElementsvalues()-
Methods inherited from class org.projog.core.predicate.AbstractSingleResultPredicate
evaluate, evaluate, evaluate, evaluate, evaluate, getArithmeticOperators, getFileHandles, getKnowledgeBase, getOperands, getPredicate, getPredicates, getProjogListeners, getSpyPoints, getTermFormatter, init, isRetryable, setKnowledgeBase
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.projog.core.predicate.PredicateFactory
isAlwaysCutOnBacktrack
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Method Detail
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keys
public static PairsElements keys()
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values
public static PairsElements values()
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evaluate
public boolean evaluate(Term pairs, Term values)
- Overrides:
evaluatein classAbstractSingleResultPredicate
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