borland Packages  Class Hierarchy  jbcl.dataset Package  Index 

CountAggOperator class

java.lang.Object
   +----borland.jbcl.dataset.AggOperator
           +----borland.jbcl.dataset.CountAggOperator

About the CountAggOperator class

Variables  Properties  Methods  

Implements Serializable, Cloneable

The CountAggOperator class is instantiable subclass of the AggOperator and defines an aggregation operation of a count.

Set the aggOperator property of the AggDescriptor object to this class to perform a count 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.


CountAggOperator variables

Variables implemented in borland.jbcl.dataset.AggOperator

CountAggOperator properties

*Read-only properties **Write-only properties

Properties implemented in java.lang.Object

CountAggOperator methods

Methods implemented in this class

Methods implemented in borland.jbcl.dataset.AggOperator

Methods implemented in java.lang.Object


CountAggOperator methods

add(borland.jbcl.dataset.ReadRow, long, boolean)

  public void add(borland.jbcl.dataset.ReadRow row, long internalRow, boolean first)

Overrides: borland.jbcl.dataset.AggOperator.add(borland.jbcl.dataset.ReadRow, long, boolean)

delete(borland.jbcl.dataset.ReadRow, long)

  public void delete(borland.jbcl.dataset.ReadRow row, long internalRow)

Overrides: borland.jbcl.dataset.AggOperator.delete(borland.jbcl.dataset.ReadRow, long)

init(borland.jbcl.dataset.StorageDataSet, java.lang.String[], borland.jbcl.dataset.StorageDataSet, borland.jbcl.dataset.Column, borland.jbcl.dataset.Column)

  public void init(borland.jbcl.dataset.StorageDataSet dataSet, java.lang.String[] groupColumnNames, borland.jbcl.dataset.StorageDataSet aggDataSet, borland.jbcl.dataset.Column resultColumn, borland.jbcl.dataset.Column aggColumn)

Overrides: borland.jbcl.dataset.AggOperator.init(borland.jbcl.dataset.StorageDataSet, java.lang.String[], borland.jbcl.dataset.StorageDataSet, borland.jbcl.dataset.Column, borland.jbcl.dataset.Column)