com.klg.jclass.higrid
Class AggregateFirst

java.lang.Object
  |
  +--com.klg.jclass.higrid.BaseAggregate
        |
        +--com.klg.jclass.higrid.AggregateFirst

All Implemented Interfaces:

Aggregate, Serializable

public class AggregateFirst

extends BaseAggregate

Implements the AggregateFirst type.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.klg.jclass.higrid.BaseAggregate

bigDecimal, column, doubleValue, longValue, metaID

Constructor Summary

AggregateFirst(com.klg.jclass.higrid.SummaryColumn column)
Creates an Aggregate that is the first of the elements in a column.

Method Summary

void	calculate(com.klg.jclass.higrid.RowNode rowNode) Perform the aggregation.
boolean	done() Determine if aggregation is done.

Methods inherited from class com.klg.jclass.higrid.BaseAggregate

addValue, cacheResultData, divideValue, getDoubleValue, getLongValue, getResultData, getRowNodeResultData, init, isSameMetaID, nextLevel, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AggregateFirst

public AggregateFirst(com.klg.jclass.higrid.SummaryColumn column)

Creates an Aggregate that is the first of the elements in a column.

Method Detail

calculate

public void calculate(com.klg.jclass.higrid.RowNode rowNode)

Perform the aggregation.

Specified by:

calculate in interface Aggregate

Specified by:

calculate in class BaseAggregate

Parameters:

rowNode - The row node.

done

public boolean done()

Determine if aggregation is done.

Specified by:

done in interface Aggregate

Overrides:

done in class BaseAggregate

Returns:

True if done.