org.ucl.xpath
Class Focus

java.lang.Object
  org.ucl.xpath.Focus

public class Focus

extends java.lang.Object

set the focus from a result sequence

Constructor Summary

Focus(ResultSequence rs)
Sets the _rs to rs and context position to 1.

Method Summary

boolean	advance_cp() Checks to see if possible to advance rs.
AnyType	context_item() Retrieves previous item from current context position.
int	last() returns the position of the last item in rs.
int	position() returns an integer of the current position.
void	set_position(int p) sets the position.

Methods inherited from class java.lang.Object

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

Constructor Detail

Focus

public Focus(ResultSequence rs)

Sets the _rs to rs and context position to 1.

Parameters:

rs - is a ResultSequence and is set to _rs.

Method Detail

context_item

public AnyType context_item()

Retrieves previous item from current context position.

Returns:

the item from _rs.

advance_cp

public boolean advance_cp()

Checks to see if possible to advance rs.

Returns:

the boolean.

position

public int position()

returns an integer of the current position.

Returns:

the current position of rs.

last

public int last()

returns the position of the last item in rs.

Returns:

the size of rs.

set_position

public void set_position(int p)

sets the position.

Parameters:

p - is the position that is set.