org.basex.query.util
Class Variables

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

public final class Variables
extends ExprInfo

Variables.

Author:

Workgroup DBIS, University of Konstanz 2005-10, 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(QueryContext ctx) Compiles the variables.
Var	get(Var var) Finds the specified variable.
Vars	getGlobal() Returns the global variables.
void	plan(Serializer ser) Recursively sends the abstract syntax of this expression to the specified serializer.
void	reset(int s) Resets the number of local variables.
int	size() Returns the current number of local variables.
String	toString()

Methods inherited from class org.basex.query.ExprInfo

color, info, name

Methods inherited from class java.lang.Object

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

Constructor Detail

Variables

public Variables()

Method Detail

addGlobal

public void addGlobal(Var v)

Indexes a global variable.

Parameters:

v - variable

getGlobal

public Vars getGlobal()

Returns the global variables.

Returns:

global variables

add

public void add(Var v)

Indexes a local variable.

Parameters:

v - variable

get

public Var get(Var var)

Finds the specified variable.

Parameters:

var - variable

Returns:

variable

size

public int size()

Returns the current number of local variables.

Returns:

number of variables

reset

public void reset(int s)

Resets the number of local variables.

Parameters:

s - number of variables to be set

comp

public void comp(QueryContext ctx)
          throws QueryException

Compiles the variables.

Parameters:

ctx - query context

Throws:

QueryException - query exception

toString

public String toString()

Specified by:

toString in class ExprInfo

plan

public void plan(Serializer ser)
          throws IOException

Description copied from class: ExprInfo

Recursively sends the abstract syntax of this expression to the specified serializer.

Specified by:

plan in class ExprInfo

Parameters:

ser - serializer

Throws:

IOException - I/O exception