Mapping arithmetic operators: ArithOpMapper element

The ArithOpMapper element is used for customizing the mappings of the arithmetic operators listed in Table 11-5. The table also shows the default template for each operator.

Table 11-5

Default templates for mapping arithmetic operators

Arithmetic operator	Operand data types	Default template	Remarks
+	<INTEGER>, <INTEGER> <DOUBLE>, <DOUBLE> <DECIMAL>, <DECIMAL>	($P0 + $P1)	Use ADD as the FunctionName for +.
-		($P0 - $P1)	Use SUB as the FunctionName for -.
*		($P0 * $P1)	Use MULT as the FunctionName for *.
/	<INTEGER>, <INTEGER>	($P0 / $P1)	Use DIV as the FunctionName for /.
	<DOUBLE>, <DOUBLE>	($P0 / $P1)
	<DECIMAL>, <DECIMAL>	Generated by the Integration service
-	<INTEGER> <DOUBLE> <DECIMAL>	- ($P0)	Use NEG as the FunctionName for -.

Example: Mapping the negation operator

You change the mapping of the negation operator because your database uses a different syntax. You use NEG as the FunctionName:

<ArithOpMapper>

  <FunctionMappings>

    <FunctionMapping FunctionName="NEG">

      NEGATE ($P0)

    </FunctionMapping>

  </FunctionMappings>

</ArithOpMapper>

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