org.wandora.query2

Class Join.JoinIterator

java.lang.Object

org.wandora.query2.ResultIterator

org.wandora.query2.Join.JoinIterator

Enclosing class:

Join

private class Join.JoinIterator
extends ResultIterator

Nested Class Summary

Nested classes/interfaces inherited from class org.wandora.query2.ResultIterator

ResultIterator.BufferedIterator, ResultIterator.CachedIterator, ResultIterator.EmptyIterator, ResultIterator.ListIterator, ResultIterator.SingleIterator

Field Summary

Fields

Modifier and Type	Field and Description
boolean	allDone
QueryContext	context
int	counter
ResultRow	input
java.util.ArrayList<ResultIterator>	iterators
ResultRow	nextRow
ResultRow[]	rows
long	startTime

Constructor Summary

Constructors

Constructor and Description
JoinIterator(QueryContext context, ResultRow input)

Method Summary

Modifier and Type	Method and Description
void	dispose() Finalizes the iterator and performs any cleanup needed.
boolean	hasNext() Checks if there is another row available.
ResultRow	next() Gets the next row in the results and moves the iterator forward one row.
void	reset() Resets the iterator to its initial position.

Methods inherited from class java.lang.Object

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

Field Detail

context

public QueryContext context

input

public ResultRow input

iterators

public java.util.ArrayList<ResultIterator> iterators

allDone

public boolean allDone

nextRow

public ResultRow nextRow

rows

public ResultRow[] rows

counter

public int counter

startTime

public long startTime

Constructor Detail

JoinIterator

public JoinIterator(QueryContext context,
                    ResultRow input)
             throws QueryException

Throws:

QueryException

Method Detail

hasNext

public boolean hasNext()
                throws QueryException

Description copied from class: ResultIterator

Checks if there is another row available.

Specified by:

hasNext in class ResultIterator

Throws:

QueryException

next

public ResultRow next()
               throws QueryException,
                      java.util.NoSuchElementException

Description copied from class: ResultIterator

Gets the next row in the results and moves the iterator forward one row. If there are no more rows NoSuchElementException is thrown.

Specified by:

next in class ResultIterator

Throws:

QueryException

java.util.NoSuchElementException

dispose

public void dispose()
             throws QueryException

Description copied from class: ResultIterator

Finalizes the iterator and performs any cleanup needed. This iterator cannot be used at all after a call to this.

Specified by:

dispose in class ResultIterator

Throws:

QueryException

reset

public void reset()
           throws QueryException

Description copied from class: ResultIterator

Resets the iterator to its initial position.

Specified by:

reset in class ResultIterator

Throws:

QueryException