CaseVariableListener (Camunda Platform Javadocs 7.20.0-SNAPSHOT)

All Superinterfaces:

VariableListener<DelegateCaseVariableInstance>

All Known Implementing Classes:

ClassDelegateCaseVariableListener, DelegateExpressionCaseVariableListener, ExpressionCaseVariableListener, ScriptCaseVariableListener
```
public interface CaseVariableListener
extends VariableListener<DelegateCaseVariableInstance>
```
A variable listener can be defined on a scope in a case model. Depending on its configuration, it is invoked when a variable is create/updated/deleted on a case execution that corresponds to that scope or to any of its descendant scopes.

Beware: If you set a variable inside a VariableListener implementation, this will result in new variable listener invocations. Make sure that your implementation allows to exit such a cascade as otherwise there will be an infinite loop.

Author:

Thorben Lindhauer

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static String CREATE
  
  static String DELETE
  
  static String UPDATE
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void notify(DelegateCaseVariableInstance variableInstance)

- Field Detail
  - CREATE
```
static final String CREATE
```
    See Also:
    
    Constant Field Values
  - UPDATE
```
static final String UPDATE
```
    See Also:
    
    Constant Field Values
  - DELETE
```
static final String DELETE
```
    See Also:
    
    Constant Field Values
- Method Detail
  - notify
```
void notify(DelegateCaseVariableInstance variableInstance)
     throws Exception
```
    Specified by:
    
    notify in interface VariableListener<DelegateCaseVariableInstance>
    
    Throws:
    
    Exception