Examples of org.pentaho.reporting.engine.classic.core.function.TotalGroupSumFunction

org.pentaho.reporting.engine.classic.core.function.TotalGroupSumFunction

A report function that calculates the sum of one field (column) from the Data-Row. This function produces a global total. The total sum of the group is known when the group processing starts and the report is not performing a prepare-run. The sum is calculated in the prepare run and recalled in the printing run.

The function can be used in two ways:

to calculate a sum for the entire report;
to calculate a sum within a particular group;

This function expects its input values to be either java.lang.Number instances or Strings that can be parsed to java.lang.Number instances using a java.text.DecimalFormat.

The function undestands two parameters, the field parameter is required and denotes the name of an ItemBand-field which gets summed up.

The parameter group denotes the name of a group. When this group is started, the counter gets reseted to null. This parameter is optional. @author Thomas Morgner

      if (g != null)
      {
        report.removeGroup(g);
      }


      final TotalGroupSumFunction f = new TotalGroupSumFunction();
      f.setName("continent-total-gc");
      f.setGroup("Continent Group");
      f.setField("Population");
      f.setDependencyLevel(1);
      report.addExpression(f);


      final TotalGroupSumFunction f2 = new TotalGroupSumFunction();
      f2.setName("total-gc");
      f2.setField("Population");
      f2.setDependencyLevel(1);
      report.addExpression(f2);


      assertTrue(FunctionalityTestLib.execGraphics2D(report));
    }
    catch (Exception e)

Examples of org.pentaho.reporting.engine.classic.core.function.TotalGroupSumFunction

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