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## org.jbpm.jpdl.el.impl
Class NullLiteral

    java.lang.Object
      org.jbpm.jpdl.el.impl.Expression
          org.jbpm.jpdl.el.impl.Literal
              org.jbpm.jpdl.el.impl.NullLiteral

    public class NullLiteral

extends Literal

An expression representing a null literal value

Version:
  $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author$
Author:
  Nathan Abramson - Art Technology Group

Field Summary
`static NullLiteral` | `SINGLETON`

Constructor Summary
`NullLiteral()` Constructor

Method Summary
`java.lang.String` | `getExpressionString()` Returns the expression in the expression language syntax

Methods inherited from class org.jbpm.jpdl.el.impl.Literal
`evaluate, getValue, setValue`

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

Field Detail

### SINGLETON

    public static final NullLiteral SINGLETON

Constructor Detail

### NullLiteral

    public NullLiteral()

  Constructor

Method Detail

### getExpressionString

    public java.lang.String getExpressionString()

  Returns the expression in the expression language syntax

  Specified by:
    `getExpressionString` in class `Expression`

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