AstNull (Flowable - Engine Common 6.8.1 API)

java.lang.Object
- org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstNode
- - org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstRightValue
  - - org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstLiteral
    - - org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstNull

All Implemented Interfaces:: ExpressionNode, Node

public final class AstNull
extends AstLiteral

Constructor Summary

Constructors
Constructor Description

AstNull()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`appendStructure(StringBuilder b, Bindings bindings)`
`Object`	`eval(Bindings bindings, ELContext context)`
`String`	`toString()`

Methods inherited from class org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstLiteral
getCardinality, getChild

Methods inherited from class org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstRightValue
getMethodInfo, getType, getValueReference, invoke, isLeftValue, isLiteralText, isMethodInvocation, isReadOnly, setValue

Methods inherited from class org.flowable.common.engine.impl.de.odysseus.el.tree.impl.ast.AstNode
findAccessibleMethod, getStructuralId, getValue

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

Constructor Detail
- AstNull
```
public AstNull()
```

Method Detail

eval

public Object eval(Bindings bindings,
                   ELContext context)

Specified by:: eval in class AstNode

toString
```
public String toString()
```
Overrides:

toString in class Object

appendStructure

public void appendStructure(StringBuilder b,
                            Bindings bindings)

Specified by:: appendStructure in class AstNode