VariableReference

All Known Implementing Classes:

ContextVariableReference, NullVariableReference, VariableArray, VariableArray.ElementReference, VariableBase, VariableBoolean, VariableConfiguration, VariableConfiguration.NodeReference, VariableConfigurationNode, VariableConfigurationNode.AttributeReference, VariableConfigurationNode.NodeReference, VariableConfigurationNode.ValueReference, VariableConnectionName, VariableDict, VariableFloat, VariableInt, VariableQueryArg, VariableResult, VariableString, VariableURL
```
public interface VariableReference
```
This interface represents a mutable reference to a variable. It exists as a separate entity so that the reference to the underlying variable can be easily modified. The reference can, of course, be null.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isNull()`	Check if this reference is null
`Variable`	`resolve()`	Resolve the reference
`void`	`setReference(Variable object)`	Set the reference

- Method Detail
  - setReference
```
void setReference(Variable object)
           throws ScriptException
```
    Set the reference
    
    Throws:
    
    ScriptException
  - resolve
```
Variable resolve()
          throws ScriptException
```
    Resolve the reference
    
    Throws:
    
    ScriptException
  - isNull
```
boolean isNull()
```
    Check if this reference is null