Module org.apache.jena.arq

Package org.apache.jena.sparql.engine.iterator

Class QueryIterAssign

java.lang.Object

org.apache.jena.sparql.util.PrintSerializableBase

org.apache.jena.sparql.engine.iterator.QueryIteratorBase

org.apache.jena.sparql.engine.iterator.QueryIter

org.apache.jena.sparql.engine.iterator.QueryIter1

org.apache.jena.sparql.engine.iterator.QueryIterProcessBinding

org.apache.jena.sparql.engine.iterator.QueryIterAssign

All Implemented Interfaces:

Iterator<Binding>, org.apache.jena.atlas.io.Printable, org.apache.jena.atlas.iterator.IteratorCloseable<Binding>, org.apache.jena.atlas.lib.Closeable, QueryIterator, PrintSerializable

public class QueryIterAssign
extends QueryIterProcessBinding

Extend each solution by a (var, expression)

Constructor Summary

Constructors

Constructor	Description
QueryIterAssign(QueryIterator input, VarExprList exprs, ExecutionContext qCxt, boolean mustBeNewVar)
QueryIterAssign(QueryIterator input, Var var, Expr expr, ExecutionContext qCxt)

Method Summary

Modifier and Type	Method	Description
Binding	accept(Binding binding)	Process the binding - return null for "not accept".

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIterProcessBinding

moveToNextBinding

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter1

output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter

close, flatMap, getExecContext, getIteratorNumber, makeTracked, map, materialize, materialize, output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIteratorBase

cancel, hasNext, next, nextBinding, remove

Methods inherited from class org.apache.jena.sparql.util.PrintSerializableBase

toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface org.apache.jena.sparql.util.PrintSerializable

toString

Methods inherited from interface org.apache.jena.sparql.engine.QueryIterator

isJoinIdentity

Constructor Details

QueryIterAssign

public QueryIterAssign(QueryIterator input,
 Var var,
 Expr expr,
 ExecutionContext qCxt)

QueryIterAssign

public QueryIterAssign(QueryIterator input,
 VarExprList exprs,
 ExecutionContext qCxt,
 boolean mustBeNewVar)

Method Details

accept

public Binding accept(Binding binding)

Description copied from class: QueryIterProcessBinding

Process the binding - return null for "not accept". Subclasses may return a different Binding to the argument and the result is the returned Binding.

Specified by:

accept in class QueryIterProcessBinding