borland.jbcl Packages borland.jbcl Class Hierarchy borland.jbcl.dataset
java.lang.Object +----borland.jbcl.dataset.AggOperator +----borland.jbcl.dataset.CountAggOperator
Variables Properties Methods
Implements Cloneable
The CountAggOperator class is an instantiatable 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.
public void add(borland.jbcl.dataset.ReadRow row, int internalRow, boolean first)
Overrides: borland.jbcl.dataset.AggOperator.add(ReadRow, int, boolean)
public void delete(borland.jbcl.dataset.ReadRow row, int internalRow)
Overrides: borland.jbcl.dataset.AggOperator.delete(ReadRow, int)
public void init(borland.jbcl.dataset.StorageDataSet dataSet, borland.jbcl.dataset.StorageDataSet aggDataSet, borland.jbcl.dataset.Column resultColumn, borland.jbcl.dataset.Column aggColumn)
Overrides: borland.jbcl.dataset.AggOperator.init(StorageDataSet, StorageDataSet, Column, Column)