IsNullConditionExpressionExecutor (Siddhi Core 5.1.29 API)

java.lang.Object
- io.siddhi.core.executor.condition.ConditionExpressionExecutor
- - io.siddhi.core.executor.condition.IsNullConditionExpressionExecutor

All Implemented Interfaces:

ExpressionExecutor, Serializable
```
public class IsNullConditionExpressionExecutor
extends ConditionExpressionExecutor
```
Executor class for IsNull condition. Condition evaluation logic is implemented within executor.

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  IsNullConditionExpressionExecutor(ExpressionExecutor expressionExecutor)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Boolean execute(ComplexEvent event)
  - Methods inherited from class io.siddhi.core.executor.condition.ConditionExpressionExecutor
    getReturnType
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - IsNullConditionExpressionExecutor
```
public IsNullConditionExpressionExecutor(ExpressionExecutor expressionExecutor)
```
- Method Detail
  - execute
```
public Boolean execute(ComplexEvent event)
```
    Specified by:
    
    execute in interface ExpressionExecutor
    
    Specified by:
    
    execute in class ConditionExpressionExecutor