List of OCL Methods
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      .minusHours() / .minusMinutes() / .minusSeconds()

      Mmethod reduces as many of hours or minutes or seconds as the integer in the parameter indicates.

      Description of the method

      Description: .minus{Hours|Minutes|Seconds}() method reduces as many of hours or minutes or seconds as the integer in the parameter indicates.
      Available for: ISO Date Time
      Parameters: integer
      Return type: ISO Date Time

       Example

      Context: HeaderType1 
      OCL: self.TimeStamp.minusHours(2) = self.Dt
      Description: The example rule compares the date & time of <TimeStamp> minus 2 hours to the date & time of <Dt>. If the date & time of <TimeStamp> after the reduced hours equals the date & time of <Dt>, true will be returned. This works in the same way with minutes and seconds.

       

      The XML snippet below would pass this check.

      <Header>
          <Dt>2018-05-28T10:17:50</Dt>
          <TimeStamp>2018-05-28T12:17:50</TimeStamp>
      </Header>

       

      The other snippet below however would not pass this check.

      <Header>
          <Dt>2018-05-28T08:17:50</Dt>
          <TimeStamp>2018-05-28T12:17:50</TimeStamp>
      </Header>