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

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

public class AggregationManager
extends java.lang.Object

Field Summary

static int	AGGR_MEASURE
static int	AGGR_TABULAR
static int	AGGR_XTAB
static java.util.Map	aggrMap

Method Summary

static void	destroyInstance() Destroy shared instance of AggregationManager.
IAggrFunction	getAggregation(java.lang.String name)
java.util.List	getAggregations() get a list of IAggrFunction instances which contains all the aggregations function.
java.util.List	getAggregations(int type) get a list of IAggrFunction instances for the specified type, which must be one of the values below: AggregationManager.AGGR_TABULAR,AggregationManager.AGGR_XTAB,AggregationManager.AGGR_MEASURE.
static AggregationManager	getInstance() Return a shared instance of AggregationManager.

Methods inherited from class java.lang.Object

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

Field Detail

aggrMap

public static java.util.Map aggrMap

AGGR_TABULAR

public static final int AGGR_TABULAR

See Also:

Constant Field Values

AGGR_XTAB

public static final int AGGR_XTAB

See Also:

Constant Field Values

AGGR_MEASURE

public static final int AGGR_MEASURE

See Also:

Constant Field Values

Method Detail

getInstance

public static AggregationManager getInstance()
                                      throws org.eclipse.birt.data.engine.core.DataException

Return a shared instance of AggregationManager.

Returns:

Throws:

org.eclipse.birt.data.engine.core.DataException

destroyInstance

public static void destroyInstance()

Destroy shared instance of AggregationManager.

getAggregation

public IAggrFunction getAggregation(java.lang.String name)

getAggregations

public java.util.List getAggregations(int type)

get a list of IAggrFunction instances for the specified type, which must be one of the values below: AggregationManager.AGGR_TABULAR,AggregationManager.AGGR_XTAB,AggregationManager.AGGR_MEASURE.

Parameters:

type -

Returns:

getAggregations

public java.util.List getAggregations()

get a list of IAggrFunction instances which contains all the aggregations function.

Returns: