org.jpc.engine.embedded

Class JpcQuery

java.lang.Object

org.jpc.query.Cursor<Solution>

org.jpc.query.Query

org.jpc.query.PrologQuery

org.jpc.engine.embedded.JpcQuery

All Implemented Interfaces:

AutoCloseable, Iterator<Solution>

public class JpcQuery
extends PrologQuery

Constructor Summary

Constructors

Constructor and Description
JpcQuery(JpcEngine prologEngine, Term goal, boolean errorHandledQuery, Jpc context)

Method Summary

Modifier and Type	Method and Description
protected void	basicAbort()
protected List<Solution>	basicAllSolutions() The default implementation for obtaining all the solutions consists on just making use of the existing next() method However, children could override this in case many calls to next() are more expensive that obtaining all the results of the query at once (e.g., a findall/3 query in Prolog)
protected void	basicClose()
Solution	basicNext() Returns the next available element in the cursor.
boolean	isAbortable()

Methods inherited from class org.jpc.query.PrologQuery

exceptionHandledQueryTerm, getDefaultSelectedTerm, getGoal, getInstrumentedGoal, getJpcContext, getPrologEngine, instrumentGoal, isErrorHandledQuery, toString, withOperatorsQueryTerm

Methods inherited from class org.jpc.query.Query

allSolutionsMultimap, asTerm, cachedNext, errorCheck, getAllSolutionsBindingsTerm, select, select, select, selectObject, selectObject, selectObject, selectObject, selectObject, selectObject, shouldVerifySolution

Methods inherited from class org.jpc.query.Cursor

abort, adapt, allSolutions, basicOneSolutionOrThrow, basicSolutionsRange, close, filter, finalize, getState, hasNext, hasSolution, isExhausted, isOpen, isReady, iterativeAllSolutions, next, nonSynchronizedClose, nSolutions, numberOfSolutions, oneSolution, oneSolutionOrThrow, remove, setState, solutionsRange

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

JpcQuery

public JpcQuery(JpcEngine prologEngine,
                Term goal,
                boolean errorHandledQuery,
                Jpc context)

Method Detail

isAbortable

public boolean isAbortable()

Specified by:

isAbortable in class Cursor<Solution>

basicAbort

protected void basicAbort()

Specified by:

basicAbort in class Cursor<Solution>

basicClose

protected void basicClose()

Specified by:

basicClose in class Cursor<Solution>

basicAllSolutions

protected List<Solution> basicAllSolutions()

Description copied from class: Cursor

The default implementation for obtaining all the solutions consists on just making use of the existing next() method However, children could override this in case many calls to next() are more expensive that obtaining all the results of the query at once (e.g., a findall/3 query in Prolog)

Overrides:

basicAllSolutions in class Query

Returns:

a list with all solutions.

basicNext

public Solution basicNext()

Description copied from class: Cursor

Returns the next available element in the cursor. If the cursor is exhausted it should throw a NoSuchElementException the first time it is invoked. Its behavior is undetermined if invoked more than once after the cursor has been exhausted.

Specified by:

basicNext in class Cursor<Solution>

Returns: