ColumnDifferenceExpression

Description

An expression that takes values from two or more fields and returns the difference of them.

Example

<expression name="Difference\_Column" class="org.jfree.report.function.ColumnDifferenceExpression">
  <properties>
    <property name="field\[0]">Column_1</property>
    <property name="field\[1]">Column_2</property>
  </properties>
</expression>