Class TupleExprWrapperIteration<T extends BindingSet, X extends Exception>

java.lang.Object

org.eclipse.rdf4j.sail.helpers.TupleExprWrapperIteration<T,X>

All Implemented Interfaces:

AutoCloseable, CloseableIteration<T,X>, Iteration<T,X>

class TupleExprWrapperIteration<T extends BindingSet, X extends Exception>
extends Object
implements CloseableIteration<T,X>

This iteration is used to debug issues with the TupleExpr that was used to generate the wrapped iteration. AbstractSailConnection will use this class when evaluating a query if assertions are enabled.

Field Summary

Fields

Modifier and Type	Field	Description
private final CloseableIteration<T,X>	delegate
private final TupleExpr	tupleExpr
private final TupleExpr	tupleExprClone

Constructor Summary

Constructors

Constructor	Description
TupleExprWrapperIteration(CloseableIteration<T,X> delegate, TupleExpr tupleExpr)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this iteration, freeing any resources that it is holding.
TupleExpr	getTupleExpr()
TupleExpr	getTupleExprClone()
boolean	hasNext()	Returns true if the iteration has more elements.
T	next()	Returns the next element in the iteration.
void	remove()	Removes from the underlying collection the last element returned by the iteration (optional operation).
Stream<T>	stream()	Convert the results to a Java 8 Stream.

Methods inherited from class Object

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

Field Details

delegate

private final CloseableIteration<T extends BindingSet, X extends Exception> delegate

tupleExpr

private final TupleExpr tupleExpr

tupleExprClone

private final TupleExpr tupleExprClone

Constructor Details

TupleExprWrapperIteration

public TupleExprWrapperIteration(CloseableIteration<T,X> delegate,
 TupleExpr tupleExpr)

Method Details

stream

public Stream<T> stream()

Description copied from interface: CloseableIteration

Convert the results to a Java 8 Stream.

Specified by:

stream in interface CloseableIteration<T extends BindingSet, X extends Exception>

Specified by:

stream in interface Iteration<T extends BindingSet, X extends Exception>

Returns:

stream

close

public void close()
           throws X

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<T extends BindingSet, X extends Exception>

Throws:

X

hasNext

public boolean hasNext()
                throws X

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<T extends BindingSet, X extends Exception>

Returns:

true if the iteration has more elements.

Throws:

X

next

public T next()
       throws X

Description copied from interface: Iteration

Returns the next element in the iteration.

Specified by:

next in interface Iteration<T extends BindingSet, X extends Exception>

Returns:

the next element in the iteration.

Throws:

X

remove

public void remove()
            throws X

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<T extends BindingSet, X extends Exception>

Throws:

X

getTupleExpr

public TupleExpr getTupleExpr()

getTupleExprClone

public TupleExpr getTupleExprClone()