org.apache.druid.frame.segment

Class FrameCursor

java.lang.Object

org.apache.druid.frame.segment.FrameCursor

All Implemented Interfaces:

Cursor

public class FrameCursor
extends Object
implements Cursor

An implementation of Cursor used by FrameCursorFactory and FrameCursorFactory. Adds the methods getCurrentRow() and setCurrentRow(int) so the cursor can be moved to particular rows.

Constructor Summary

Constructors

Constructor and Description
FrameCursor(SimpleSettableOffset offset, ColumnSelectorFactory columnSelectorFactory)

Method Summary

Modifier and Type	Method and Description
void	advance()
void	advanceUninterruptibly()
ColumnSelectorFactory	getColumnSelectorFactory()
int	getCurrentRow() Returns the current row number.
org.joda.time.DateTime	getTime()
boolean	isDone()
boolean	isDoneOrInterrupted()
void	reset()
void	setCurrentRow(int rowNumber) Moves this cursor to a particular row number.

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameCursor

public FrameCursor(SimpleSettableOffset offset,
                   ColumnSelectorFactory columnSelectorFactory)

Method Detail

getColumnSelectorFactory

public ColumnSelectorFactory getColumnSelectorFactory()

Specified by:

getColumnSelectorFactory in interface Cursor

getTime

public org.joda.time.DateTime getTime()

Specified by:

getTime in interface Cursor

advance

public void advance()

Specified by:

advance in interface Cursor

advanceUninterruptibly

public void advanceUninterruptibly()

Specified by:

advanceUninterruptibly in interface Cursor

isDone

public boolean isDone()

Specified by:

isDone in interface Cursor

isDoneOrInterrupted

public boolean isDoneOrInterrupted()

Specified by:

isDoneOrInterrupted in interface Cursor

reset

public void reset()

Specified by:

reset in interface Cursor

getCurrentRow

public int getCurrentRow()

Returns the current row number.

setCurrentRow

public void setCurrentRow(int rowNumber)

Moves this cursor to a particular row number.