# Package org.jfree.report.expressions.sys

- Class Summary
  Class | Description
  --- | ---
  GetValueExpression | Creation-Date: 02.12.2006, 22:07:57
  GroupByExpression | Creation-Date: 08.10.2006, 16:28:37
  IsEmptyDataExpression | Creation-Date: 31.01.2006, 18:55:09
  IsEmptyExpression | Creation-Date: 27.01.2006, 20:42:19
  IsEndOfDataExpression | Creation-Date: 19.02.2006, 19:15:45
  IsExportTypeExpression | Tests, whether a certain export type is currently used.
  IsNullExpression | Creation-Date: 27.01.2006, 20:42:19