GlobalVariable (platform/sdk 5.6.1.0 API)

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable
```
@Deprecated
public interface GlobalVariable
extends java.io.Closeable
```
Deprecated.
This API should no longer be used and is scheduled for removal in a future release

A variable that is accessible across multiple AIE Nodes in a cluster. The value of the variable will persist across restarts of the system. GlobalVariables should be created via a reference to a GlobalDataStructureFactory that will be provided by the AIE Node to components that implement GlobalDataStructureFactoryAware.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`compareAndSet(java.lang.String expectedValue, java.lang.String newValue)`	Deprecated. Same semantics as `AtomicReference.compareAndSet(Object, Object)`.
`java.lang.String`	`getCurrentValue()`	Deprecated. Returns the current value of the variable or null if not set.
`void`	`listen(VariableListener listener)`	Deprecated. Registers a `VariableListener` that will be called when the value of this GlobalVariable is changed.
`void`	`set(java.lang.String value)`	Deprecated. Add or updates the value to the new value specified.

Methods inherited from interface java.io.Closeable
close

- Method Detail
  - listen
```
void listen(VariableListener listener)
     throws AttivioException
```
    Deprecated.
    
    Registers a VariableListener that will be called when the value of this GlobalVariable is changed. The listener will always be called with the current value as part of this registration.
    
    Throws:
    
    AttivioException
  - set
```
void set(java.lang.String value)
  throws AttivioException
```
    Deprecated.
    
    Add or updates the value to the new value specified. Set to null to delete the value.
    
    Throws:
    
    AttivioException
  - getCurrentValue
```
java.lang.String getCurrentValue()
                          throws AttivioException
```
    Deprecated.
    
    Returns the current value of the variable or null if not set.
    
    Throws:
    
    AttivioException
  - compareAndSet
```
boolean compareAndSet(java.lang.String expectedValue,
                      java.lang.String newValue)
               throws AttivioException
```
    Deprecated.
    
    Same semantics as AtomicReference.compareAndSet(Object, Object).
    
    Throws:
    
    AttivioException