borland Packages  Class Hierarchy  dx.dataset Package 

MaxAggOperator class

java.lang.Object
   +----com.borland.dx.dataset.AggOperator
           +----com.borland.dx.dataset.BoundsAggOperator
                   +----com.borland.dx.dataset.MaxAggOperator

About the MaxAggOperator class

Variables  Properties  Methods  

Implements Serializable, Cloneable

The MaxAggOperator component is an instantiatable subclass of the AggOperator and defines an aggregation operation where the maximum value in a DataSet is identified.

Set the aggOperator property of the AggDescriptor object to this class to identify the maximum 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.


MaxAggOperator variables

Variables implemented in com.borland.dx.dataset.AggOperator

MaxAggOperator properties

*Read-only properties **Write-only properties

Properties implemented in java.lang.Object

MaxAggOperator methods

Methods implemented in this class

Methods implemented in com.borland.dx.dataset.AggOperator

Methods implemented in com.borland.dx.dataset.BoundsAggOperator

Methods implemented in java.lang.Object


MaxAggOperator methods

locate(com.borland.dx.dataset.ReadRow)

  public boolean locate(ReadRow row)
Locates the maximum value for the grouping column values specified in row. For example, if the grouping column is region and the max column is sales, calling this method moves to the highest sales value for a region.

Overrides: com.borland.dx.dataset.AggOperator.locate(com.borland.dx.dataset.ReadRow)