borland Packages Class Hierarchy dx.dataset Package
SumAggOperator class
java.lang.Object
+----com.borland.dx.dataset.AggOperator
+----com.borland.dx.dataset.SumAggOperator
About the SumAggOperator class
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.
SumAggOperator variables
SumAggOperator properties
*Read-only properties **Write-only properties
Properties implemented in java.lang.Object
SumAggOperator methods
Methods implemented in this class
Methods implemented in java.lang.Object
- equals(java.lang.Object)
- finalize()
- hashCode()
- notify()
- notifyAll()
- toString()
- wait()
- wait(long)
- wait(long, int)
SumAggOperator methods
add(com.borland.dx.dataset.ReadRow, long, boolean)
public void add(ReadRow row, long internalRow, boolean first)
A row has been added or updated.
Parameters:
- row
- The row containing the values.
- internalRow
- The unique identifier for the row.
- first
- Returns true if this is the first row in the group, false otherwise.
Overrides:
com.borland.dx.dataset.AggOperator.add(com.borland.dx.dataset.ReadRow, long, boolean)
delete(com.borland.dx.dataset.ReadRow, long)
public void delete(ReadRow row, long internalRow)
A row has been deleted or updated.
Parameters:
- row
- The row containing the values.
- internalRow
- The unique identifier for the row.
Overrides:
com.borland.dx.dataset.AggOperator.delete(com.borland.dx.dataset.ReadRow, long)