BasicVariables (Apache Commons JXPath 1.4-SNAPSHOT API)

java.lang.Object
- org.apache.commons.jxpath.BasicVariables

All Implemented Interfaces:

Serializable, Variables
```
public class BasicVariables
extends Object
implements Variables
```
A basic implementation of the Variables interface that uses a HashMap.

Version:

$Revision: 652925 $ $Date: 2008-05-03 00:05:41 +0200 (Sa, 03 Mai 2008) $

Author:

Dmitri Plotnikov

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

BasicVariables()

Constructors
Constructor and Description
`BasicVariables()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`declareVariable(String varName, Object value)` Defines a new variable with the specified value or modifies the value of an existing variable.
`Object`	`getVariable(String varName)` Returns the value of the variable if it is defined, otherwise, throws IllegalArgumentException
`boolean`	`isDeclaredVariable(String varName)` Returns true if the variable has been defined, even if the value of the variable is null.
`String`	`toString()`
`void`	`undeclareVariable(String varName)` Removes an existing variable.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - BasicVariables
```
public BasicVariables()
```
- Method Detail
  - isDeclaredVariable
```
public boolean isDeclaredVariable(String varName)
```
    Returns true if the variable has been defined, even if the value of the variable is null.
    
    Specified by:
    
    isDeclaredVariable in interface Variables
    
    Parameters:
    varName - is a variable name without the "$" sign
    
    Returns:
    true if the variable is declared
  - getVariable
```
public Object getVariable(String varName)
```
    Returns the value of the variable if it is defined, otherwise, throws IllegalArgumentException
    
    Specified by:
    
    getVariable in interface Variables
    
    Parameters:
    varName - is a variable name without the "$" sign
    
    Returns:
    the value of the variable
  - declareVariable
```
public void declareVariable(String varName,
                   Object value)
```
    Defines a new variable with the specified value or modifies the value of an existing variable.
    
    Specified by:
    
    declareVariable in interface Variables
    
    Parameters:
    varName - is a variable name without the "$" sign
    value - is the new value for the variable, which can be null
  - undeclareVariable
```
public void undeclareVariable(String varName)
```
    Removes an existing variable. May throw UnsupportedOperationException.
    
    Specified by:
    
    undeclareVariable in interface Variables
    
    Parameters:
    varName - is a variable name without the "$" sign
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class BasicVariables

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

BasicVariables

Method Detail

isDeclaredVariable

getVariable

declareVariable

undeclareVariable

toString