List of OCL Methods
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      .oclIsUndefined()

      Method checks if the given value is undefined ie null or invalid.

      Description of the method

      Description: oclIsUndefined() method checks if the given value is undefined ie null or invalid.
      Available for: any
      Parameters: -
      Return type: boolean

       Example

      Context: HeaderType1
      OCL: self.Dt.oclIsUndefined()
      Description: The example rule checks if the value of <Dt> is undefined.

       

      The XML snippet below would pass this check.

      <Dt>null</Dt>

      The other snippet below however would not pass this check.

      <Dt>28.05.2018</Dt>