org.apache.commons.jxpath.servlet
Class KeywordVariables

java.lang.Object
  org.apache.commons.jxpath.servlet.KeywordVariables

All Implemented Interfaces:

Variables

public class KeywordVariables

extends java.lang.Object

implements Variables

Implementation of the Variables interface that provides access to a single object using a reserved name (keyword).

Version:

$Revision: 1.6 $ $Date: 2004/02/29 14:17:40 $

Author:

Dmitri Plotnikov

Field Summary

private java.lang.String	keyword
private java.lang.Object	object

Constructor Summary

KeywordVariables(java.lang.String keyword, java.lang.Object object)

Method Summary

void	declareVariable(java.lang.String variable, java.lang.Object value) Defines a new variable with the specified value or modifies the value of an existing variable.
java.lang.Object	getVariable(java.lang.String variable) Returns the value of the specified variable.
boolean	isDeclaredVariable(java.lang.String variable) Returns true if the specified variable is declared.
void	undeclareVariable(java.lang.String variable) Removes an existing variable.

Methods inherited from class java.lang.Object

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

Field Detail

keyword

private java.lang.String keyword

object

private java.lang.Object object

Constructor Detail

KeywordVariables

public KeywordVariables(java.lang.String keyword,
                        java.lang.Object object)

Method Detail

isDeclaredVariable

public boolean isDeclaredVariable(java.lang.String variable)

Description copied from interface: Variables

Returns true if the specified variable is declared.

Specified by:

isDeclaredVariable in interface Variables

getVariable

public java.lang.Object getVariable(java.lang.String variable)

Description copied from interface: Variables

Returns the value of the specified variable. Throws IllegalArgumentException if there is no such variable.

Specified by:

getVariable in interface Variables

declareVariable

public void declareVariable(java.lang.String variable,
                            java.lang.Object value)

Description copied from interface: Variables

Defines a new variable with the specified value or modifies the value of an existing variable. May throw UnsupportedOperationException.

Specified by:

declareVariable in interface Variables

undeclareVariable

public void undeclareVariable(java.lang.String variable)

Description copied from interface: Variables

Removes an existing variable. May throw UnsupportedOperationException.

Specified by:

undeclareVariable in interface Variables

Parameters:

variable - is a variable name without the "$" sign