borland Packages Class Hierarchy dx.dataset Package
java.lang.Object +----com.borland.dx.dataset.AggOperator +----com.borland.dx.dataset.SumAggOperator
Variables Properties Methods
Implements Serializable, Cloneable
The SumAggOperator
class is an instantiable subclass of the AggOperator
and defines a summary aggregation operation.
Set the aggOperator
property of the AggDescriptor
object to this class to perform a summary calculation using the property settings stored in the AggDescriptor
. Attach the AggDescriptor
object to a Column
component's agg
property to access the data that the aggregation uses.
public void add(ReadRow row, long internalRow, boolean first)A row has been added or updated.
row
internalRow
first
public void delete(ReadRow row, long internalRow)A row has been deleted or updated.
row
internalRow