org.eclipse.birt.data.engine.api.aggregation
Class Aggregation

java.lang.Object
  org.eclipse.birt.data.engine.api.aggregation.Aggregation

All Implemented Interfaces:

IAggregation

Deprecated. use AggrFunction instead

public abstract class Aggregation
extends java.lang.Object
implements IAggregation

All multipass aggregations must implement this interface.

Field Summary

Fields inherited from interface org.eclipse.birt.data.engine.api.aggregation.IAggregation

RUNNING_AGGR, SUMMARY_AGGR

Constructor Summary

Aggregation()
Deprecated.

Method Summary

int	getDataType() Deprecated. get the aggregation data type.
int	getNumberOfPasses() Deprecated. Returns the number of passes over the data series that the accumulator of this aggregate requires.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.birt.data.engine.api.aggregation.IAggregation

getName, getParameterDefn, getType, newAccumulator

Constructor Detail

Aggregation

public Aggregation()

Deprecated.

Method Detail

getNumberOfPasses

public int getNumberOfPasses()

Deprecated.

Returns the number of passes over the data series that the accumulator of this aggregate requires. For SUMMARY aggregates, the accumulator returns a value after all passes are complete. For RUNNING aggregates, the accumulator returns data in the last pass.

Returns:

getDataType

public int getDataType()

Deprecated.

Description copied from interface: IAggregation

get the aggregation data type.

Specified by:

getDataType in interface IAggregation

Returns: