.abs()

Description of the method

Description:	.abs() method returns the absolut value of the given value.
Available for:	integer, real
Parameters:	-
Return type:	integer, real

Example

Context:	Message
OCL:	self.Transaction.at(0).Amount.abs() = 30
Description:	The example rule returns the absolut value of the first transaction amount and compares it to the right side operand. It's assumed that the value can be negative (this may not be the case in every situation).

The XML snippet below would pass this check.

<?xml version="1.0" encoding="UTF-8"?>

<Message xmlns="http://www.XMLdation.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Header>
    <Id>a</Id>
    <TimeStamp>2018-05-28T12:17:50</TimeStamp>
    <ControlSum>2</ControlSum>
    <NumberOfTransactions>1</NumberOfTransactions>
</Header>
<Transaction>
    <Id>TransactionId1</Id>
    <Amount>-30</Amount>
    <Debtor>
      <Name>Debtor1</Name>
    </Debtor>
    <Creditor>
      <Name>Creditor1</Name>
    </Creditor>
</Transaction>
</Message>

The other snippet below however would not pass this check. (The absolut value is 15)

<?xml version="1.0" encoding="UTF-8"?>

<Message xmlns="http://www.XMLdation.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Header>
    <Id>a</Id>
    <TimeStamp>2018-05-28T12:17:50</TimeStamp>
    <ControlSum>2</ControlSum>
    <NumberOfTransactions>1</NumberOfTransactions>
</Header>
<Transaction>
    <Id>TransactionId1</Id>
    <Amount>-15</Amount>
    <Debtor>
      <Name>Debtor1</Name>
    </Debtor>
    <Creditor>
      <Name>Creditor1</Name>
    </Creditor>
</Transaction>
</Message>