RowSet (Apache Jena ARQ)

All Superinterfaces:: org.apache.jena.atlas.lib.Closeable, Iterator<Binding>, org.apache.jena.atlas.iterator.IteratorCloseable<Binding>

All Known Subinterfaces:: RowSetRewindable

All Known Implementing Classes:: RowSetAdapter, RowSetBuffered, RowSetJSONStreaming, RowSetMem, RowSetStream

public interface RowSet extends org.apache.jena.atlas.iterator.IteratorCloseable<Binding>

Nested Class Summary

Nested Classes

Modifier and Type

Interface

Description

static class

RowSet.Exception
Method Summary

Modifier and Type

Method

Description

static RowSet

adapt(ResultSet resultSet)

void

close()

Normally a RowSet is processed until complete which implicitly closes any underlying resources.

static RowSet

create(QueryIterator qIter, List<Var> vars)

Turn a QueryIterator into a RowSet.

List<Var>

getResultVars()

long

getRowNumber()

Return the row number.

boolean

hasNext()

default RowSet

materialize()

Return a RowSet that is not connected to the original source.

Binding

next()

default RowSetRewindable

rewindable()

Create a RowSetRewindable from the current position to the end.

default Stream<Binding>

stream()

Methods inherited from interface java.util.Iterator
forEachRemaining, remove

Method Details
- adapt
  
  static RowSet adapt(ResultSet resultSet)
- hasNext
  
  boolean hasNext()
  
  Specified by:
  
  hasNext in interface Iterator<Binding>
- next
  
  Binding next()
  
  Specified by:
  
  next in interface Iterator<Binding>
- getResultVars
  
  List<Var> getResultVars()
- rewindable
  
  default RowSetRewindable rewindable()
  
  Create a RowSetRewindable from the current position to the end. This consumes this RowSet - the iterator will have ended after a call to this method.
- materialize
  
  default RowSet materialize()
  
  Return a RowSet that is not connected to the original source. This consumes this ResultSet and produces another one.
- getRowNumber
  
  long getRowNumber()
  
  Return the row number. The first row is row 1.
- stream
  
  default Stream<Binding> stream()
- close
  
  void close()
  
  Normally a RowSet is processed until complete which implicitly closes any underlying resources. This "close" operation exists to explicitly do this in cases where it does onto automatically. There is no need to close RowSets normally - it is the QueryExec that should be closed.
  
  Specified by:
  
  close in interface org.apache.jena.atlas.lib.Closeable
- create
  
  static RowSet create(QueryIterator qIter, List<Var> vars)
  
  Turn a QueryIterator into a RowSet. This operation does not materialize the QueryIterator.