VariableSetImpl

java.lang.Object
- org.exolab.adaptx.xpath.VariableSet
- - org.exolab.adaptx.xpath.VariableSetImpl

All Implemented Interfaces:

java.io.Serializable
```
public final class VariableSetImpl
extends VariableSet
```
An implementation of VariableSet which is used to provide variable bindings that can be used when evaluating an XPath expression. Binds an unqualified variable name to an XPath result.

Version:

$Revision: 3633 $

Author:

Assaf Arkin, Keith Visco

See Also:

XPathResult, XPathExpression, Serialized Form

Constructor Summary

Constructors
Constructor	Description
`VariableSetImpl()`	Constructs a new empty set of variable bindings.
`VariableSetImpl(VariableSet parent)`	Constructs a new empty variable binding with reference to a parent variable binding.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Removes the current variable bindings from this VariableSet
`XPathResult`	`getVariable(java.lang.String name)`	Returns the value of a variable.
`void`	`setVariable(java.lang.String name, XPathResult value)`	Binds the XPath result to the variable name.

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

- Constructor Detail
  - VariableSetImpl
```
public VariableSetImpl()
```
    Constructs a new empty set of variable bindings.
  - VariableSetImpl
```
public VariableSetImpl(VariableSet parent)
```
    Constructs a new empty variable binding with reference to a parent variable binding. Will use the parent variables to obtain variables not added directory to this object.
    
    Parameters:
    
    parent - The parent variable binding (may be null)
- Method Detail
  - clear
```
public void clear()
```
    Removes the current variable bindings from this VariableSet
  - getVariable
```
public XPathResult getVariable(java.lang.String name)
```
    Returns the value of a variable. Returns null if a variable with this name was not found in this variable bindings, or any parent variable binding.
    
    Specified by:
    
    getVariable in class VariableSet
    
    Parameters:
    
    name - The variable name
    
    Returns:
    
    The variable's value as an XPath result, or null
  - setVariable
```
public void setVariable(java.lang.String name,
                        XPathResult value)
```
    Binds the XPath result to the variable name. The result will be returned from subsequent call to getVariable(java.lang.String) using the same variable name.
    
    Parameters:
    
    name - The variable name
    
    value - The variable's value