org.basex.query.xquery.util
Class Variables

java.lang.Object
  org.basex.query.xquery.util.Variables

public final class Variables
extends java.lang.Object

Variables.

Author:

Workgroup DBIS, University of Konstanz 2005-07, ISC License, Christian Gruen

Constructor Summary

Variables()

Method Summary

void	add(Var v) Indexes a local variable.
void	addGlobal(Var v) Indexes a global variable.
void	comp(XQContext ctx) Compiles the functions.
Var	get(Var var) Finds the specified variable.
Item	get(Var var, XQContext ctx) Returns a variable expression.
void	reset(int s) Sets the number of local variables.
Var	score() Returns a scoring variable.
int	size() Returns the current number of local variables.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Variables

public Variables()

Method Detail

add

public void add(Var v)

Indexes a local variable.

Parameters:

v - variable

addGlobal

public void addGlobal(Var v)

Indexes a global variable.

Parameters:

v - variable

comp

public void comp(XQContext ctx)
          throws XQException

Compiles the functions.

Parameters:

ctx - xquery context

Throws:

XQException - xquery exception

get

public Var get(Var var)

Finds the specified variable.

Parameters:

var - variable

Returns:

variable

get

public Item get(Var var,
                XQContext ctx)
         throws XQException

Returns a variable expression.

Parameters:

var - variable

ctx - query context

Returns:

evaluated expression

Throws:

XQException - evaluation exception

reset

public void reset(int s)

Sets the number of local variables.

Parameters:

s - number of variables to be set

score

public Var score()

Returns a scoring variable.

Returns:

evaluated expression

size

public int size()

Returns the current number of local variables.

Returns:

number of variables

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object