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| java.lang.Object
 org.jfree.report.function.AbstractExpression
org.jfree.report.function.AbstractFunction
org.jfree.report.function.TotalGroupSumQuotientFunction
org.jfree.report.function.TotalGroupSumQuotientPercentFunction
| TotalGroupSumQuotientPercentFunction | | public class TotalGroupSumQuotientPercentFunction extends TotalGroupSumQuotientFunction (Code) | | A report function that calculates the quotient of two summed fields (columns) 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 quotient for the entire report;
- to calculate a
quotient 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 three parameters. The dividend parameter is required and denotes the name of an
ItemBand-field which gets summed up as dividend. The divisor parameter is required and denotes the name
of an ItemBand-field which gets summed up as divisor.
The parameter group denotes the name of a group. When this group is started, the counter gets reseted to
null. This parameter is optional.
This function scales the computed percentage to 100. A value of 100% will therefore be returned as 100 instead of 1.
The result of this function cannot be used together with the percentage operator of the NumberFormat in a
Number-field.
author:
Thomas Morgner |
| Method Summary | |
| public Object | getValue()
Computes the scaled percentage. |
| TotalGroupSumQuotientPercentFunction | | public TotalGroupSumQuotientPercentFunction()(Code) | | Default Constructor.
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| getValue | | public Object getValue()(Code) | | Computes the scaled percentage.
the computed percentage scaled to 100. |
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