SPARQLMinusIteration (RDF4J: Query algebra - evaluation 5.1.2 API)

java.lang.Object
- org.eclipse.rdf4j.common.iteration.FilterIteration<BindingSet>
- - org.eclipse.rdf4j.query.algebra.evaluation.iterator.SPARQLMinusIteration

All Implemented Interfaces:

AutoCloseable, Iterator<BindingSet>, CloseableIteration<BindingSet>
```
public class SPARQLMinusIteration
extends FilterIteration<BindingSet>
```
An Iteration that returns the results of an Iteration (the left argument) MINUS any results that are compatible with results of another Iteration (the right argument) or that have no shared variables. This iteration uses the formal definition of the SPARQL 1.1 MINUS operator to determine which BindingSets to return.

Author:

Jeen

See Also:

SPARQL Algebra Documentation

Constructor Summary

Constructors
Constructor	Description
`SPARQLMinusIteration(CloseableIteration<BindingSet> leftArg, CloseableIteration<BindingSet> rightArg)`	Creates a new MinusIteration that returns the results of the left argument minus the results of the right argument.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`accept(BindingSet bindingSet)`
`protected long`	`clearExcludeSet()`
`protected CloseableIteration<BindingSet>`	`getRightArg()`
`protected void`	`handleClose()`
`protected Set<BindingSet>`	`makeSet()`
`protected Set<String>`	`makeSet(Set<String> set)`
`protected Set<BindingSet>`	`makeSet(CloseableIteration<BindingSet> rightArg)`

Methods inherited from class org.eclipse.rdf4j.common.iteration.FilterIteration
close, hasNext, next, remove

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.common.iteration.CloseableIteration
stream

Methods inherited from interface java.util.Iterator
forEachRemaining

- Constructor Detail
  - SPARQLMinusIteration
```
public SPARQLMinusIteration(CloseableIteration<BindingSet> leftArg,
                            CloseableIteration<BindingSet> rightArg)
```
    Creates a new MinusIteration that returns the results of the left argument minus the results of the right argument. By default, duplicates are not filtered from the results.
    
    Parameters:
    
    leftArg - An Iteration containing the main set of elements.
    
    rightArg - An Iteration containing the set of elements that should be filtered from the main set.
- Method Detail
  - accept
```
protected boolean accept(BindingSet bindingSet)
```
    Specified by:
    
    accept in class FilterIteration<BindingSet>
  - makeSet
```
protected Set<BindingSet> makeSet()
```
  - makeSet
```
protected Set<String> makeSet(Set<String> set)
```
  - makeSet
```
protected Set<BindingSet> makeSet(CloseableIteration<BindingSet> rightArg)
```
  - handleClose
```
protected void handleClose()
```
    Specified by:
    
    handleClose in class FilterIteration<BindingSet>
  - getRightArg
```
protected CloseableIteration<BindingSet> getRightArg()
```
    Returns:
    
    Returns the rightArg.
  - clearExcludeSet
```
protected long clearExcludeSet()
```