borland Packages Class Hierarchy dx.dataset Package
java.lang.Object +----com.borland.dx.dataset.AggOperator +----com.borland.dx.dataset.BoundsAggOperator +----com.borland.dx.dataset.MinAggOperator
Variables Properties Methods
Implements Serializable, Cloneable
The MinAggOperator
class is an instantiatable subclass of the AggOperator
and defines an aggregation operation where the minimum value is determined.
Set the aggOperator
property of the AggDescriptor
object to this class to identify the minimum value in a DataSet
, 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 boolean locate(ReadRow row)Locates the minimum value for the grouping column values specified in
row
.
For example, if the grouping column is region and the min column is sales, calling this method
moves to the lowest sales value for a region.