hep.tuple
Class Cursor

java.lang.Object
  hep.tuple.Cursor

All Implemented Interfaces:

FTupleCursor

public class Cursor

extends Object

implements FTupleCursor

Author:

The FreeHEP team @ SLAC.

Source Code:

Cursor.java

Constructor Summary

	Cursor(int startRow, int endRow, boolean hasRandomAccess)
protected	Cursor(Tuple tuple)

Method Summary

void	close() Close this cursor.
boolean	next() Step to the next row.
int	row() Get the current row number
void	setRow(int n) Step to a specific row
void	skip(int rows) Skips rows.
void	start() Rewind the Cursor to BEFORE the first row.

Methods inherited from class java.lang.Object

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

Constructor Detail

Cursor

protected Cursor(Tuple tuple)

Cursor

public Cursor(int startRow,
              int endRow,
              boolean hasRandomAccess)

Method Detail

row

public int row()

Description copied from interface: FTupleCursor

Get the current row number

Specified by:

row in interface FTupleCursor

Returns:

The current row number, or -1 if before the first row

start

public void start()

Description copied from interface: FTupleCursor

Rewind the Cursor to BEFORE the first row.

Specified by:

start in interface FTupleCursor

next

public boolean next()

Description copied from interface: FTupleCursor

Step to the next row.

Specified by:

next in interface FTupleCursor

Returns:

False if there are no more rows

setRow

public void setRow(int n)

Description copied from interface: FTupleCursor

Step to a specific row

Specified by:

setRow in interface FTupleCursor

Parameters:

n - The row to move to

close

public void close()

Description copied from interface: FTupleCursor

Close this cursor. Any further attempts to use the cursor will result in an IllegalStateException.

Specified by:

close in interface FTupleCursor

skip

public void skip(int rows)

Description copied from interface: FTupleCursor

Skips rows.

Specified by:

skip in interface FTupleCursor

Parameters:

rows - number of rows to skip, greater than 0.