borland.jbcl Packages borland.jbcl Class Hierarchy borland.jbcl.dataset
java.lang.Object +----borland.jbcl.dataset.AggOperator +----borland.jbcl.dataset.SumAggOperator +----borland.jbcl.dataset.BoundsAggOperator +----borland.jbcl.dataset.CountAggOperator +----borland.jbcl.dataset.CustomAggOperator
Variables Properties Methods
Implements Cloneable
The AggOperator class is an abstract class that defines basic aggregator behavior of a calculated value or a calculated Column. Use one of its subclasses as the aggOperator property of the AggDescriptor object:
For examples of applications that use aggregators, see the following projects in the specified directories of your JBuilder installation:
protected Column aggColumn
protected DataSet aggDataSet
protected StorageDataSet dataSet
protected Column resultColumn
protected Variant value1This variable is used internally by other classes in the JBCL. You should never use this variable directly.
protected Variant value2This variable is used internally by other classes in the JBCL. You should never use this variable directly.
public boolean isUpdatable()
public abstract void add(borland.jbcl.dataset.ReadRow row, int internalRow, boolean first)
public Object clone()
Overrides: java.lang.Object.clone()
public abstract void delete(borland.jbcl.dataset.ReadRow row, int internalRow)
public void get(borland.jbcl.util.Variant value)
public void init(borland.jbcl.dataset.StorageDataSet dataSet, borland.jbcl.dataset.StorageDataSet aggDataSet, borland.jbcl.dataset.Column resultColumn, borland.jbcl.dataset.Column aggColumn)
public void open(borland.jbcl.dataset.DataSet aggDataSet)