Class RepositoryFederatedService.CloseConnectionIteration

java.lang.Object

org.eclipse.rdf4j.repository.sparql.federation.RepositoryFederatedService.CloseConnectionIteration

All Implemented Interfaces:

AutoCloseable, CloseableIteration<BindingSet, QueryEvaluationException>, Iteration<BindingSet, QueryEvaluationException>

Enclosing class:

RepositoryFederatedService

private static class RepositoryFederatedService.CloseConnectionIteration
extends Object
implements CloseableIteration<BindingSet, QueryEvaluationException>

Wrapper iteration which closes a RepositoryConnection upon close()

Field Summary

Fields

Modifier and Type	Field	Description
private final RepositoryConnection	connection
private final CloseableIteration<BindingSet, QueryEvaluationException>	delegate

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CloseConnectionIteration(CloseableIteration<BindingSet, QueryEvaluationException> delegate, RepositoryConnection connection)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this iteration, freeing any resources that it is holding.
boolean	hasNext()	Returns true if the iteration has more elements.
BindingSet	next()	Returns the next element in the iteration.
void	remove()	Removes from the underlying collection the last element returned by the iteration (optional operation).

Methods inherited from class Object

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

Methods inherited from interface CloseableIteration

stream

Field Details

delegate

private final CloseableIteration<BindingSet, QueryEvaluationException> delegate

connection

private final RepositoryConnection connection

Constructor Details

CloseConnectionIteration

private CloseConnectionIteration(CloseableIteration<BindingSet, QueryEvaluationException> delegate,
 RepositoryConnection connection)

Method Details

hasNext

public boolean hasNext()
                throws QueryEvaluationException

Description copied from interface: Iteration

Returns true if the iteration has more elements. (In other words, returns true if Iteration.next() would return an element rather than throwing a NoSuchElementException.)

Specified by:

hasNext in interface Iteration<BindingSet, QueryEvaluationException>

Returns:

true if the iteration has more elements.

Throws:

QueryEvaluationException

next

public BindingSet next()
                throws QueryEvaluationException

Description copied from interface: Iteration

Returns the next element in the iteration.

Specified by:

next in interface Iteration<BindingSet, QueryEvaluationException>

Returns:

the next element in the iteration.

Throws:

QueryEvaluationException

remove

public void remove()
            throws QueryEvaluationException

Description copied from interface: Iteration

Removes from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.

Specified by:

remove in interface Iteration<BindingSet, QueryEvaluationException>

Throws:

QueryEvaluationException

close

public void close()
           throws QueryEvaluationException

Description copied from interface: CloseableIteration

Closes this iteration, freeing any resources that it is holding. If the iteration has already been closed then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CloseableIteration<BindingSet, QueryEvaluationException>

Throws:

QueryEvaluationException