Class StatementConversionIteration
java.lang.Object
org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<BindingSet,QueryEvaluationException>
org.eclipse.rdf4j.federated.evaluation.iterator.StatementConversionIteration
- All Implemented Interfaces:
AutoCloseable,CloseableIteration<BindingSet,,QueryEvaluationException> Iteration<BindingSet,QueryEvaluationException>
public class StatementConversionIteration
extends AbstractCloseableIteration<BindingSet,QueryEvaluationException>
Converts Statement iteration (i.e. RepositoryResult) into the corresponding binding set. Note that exceptions are
converted appropriately as well.
- Author:
- Andreas Schwarte
-
Field Summary
FieldsModifier and TypeFieldDescriptionprotected final BindingSetprotected final RepositoryResult<Statement>protected final StatementPatternprotected booleanprotected booleanprotected booleanprotected boolean -
Constructor Summary
ConstructorsConstructorDescriptionStatementConversionIteration(RepositoryResult<Statement> repoResult, BindingSet bindings, StatementPattern stmt) -
Method Summary
Modifier and TypeMethodDescriptionprotected BindingSetprotected QueryEvaluationExceptionprotected voidCalled byAbstractCloseableIteration.close()when it is called for the first time.booleanhasNext()Returns true if the iteration has more elements.protected voidinit()next()Returns the next element in the iteration.voidremove()Removes from the underlying collection the last element returned by the iteration (optional operation).Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
close, isClosedMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.eclipse.rdf4j.common.iteration.CloseableIteration
stream
-
Field Details
-
repoResult
-
bindings
-
stmt
-
updateSubj
protected boolean updateSubj -
updatePred
protected boolean updatePred -
updateObj
protected boolean updateObj -
updateContext
protected boolean updateContext
-
-
Constructor Details
-
StatementConversionIteration
public StatementConversionIteration(RepositoryResult<Statement> repoResult, BindingSet bindings, StatementPattern stmt)
-
-
Method Details
-
init
protected void init() -
hasNext
Description copied from interface:IterationReturns true if the iteration has more elements. (In other words, returns true ifIteration.next()would return an element rather than throwing a NoSuchElementException.)- Returns:
- true if the iteration has more elements.
- Throws:
QueryEvaluationException
-
next
Description copied from interface:IterationReturns the next element in the iteration.- Returns:
- the next element in the iteration.
- Throws:
QueryEvaluationException
-
remove
Description copied from interface:IterationRemoves from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.- Throws:
QueryEvaluationException
-
handleClose
Description copied from class:AbstractCloseableIterationCalled byAbstractCloseableIteration.close()when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.- Overrides:
handleClosein classAbstractCloseableIteration<BindingSet,QueryEvaluationException> - Throws:
QueryEvaluationException
-
convert
-
convertException
-