Oracle® Coherence .NET API Reference Release 3.7.1
E22844-03

The GroupAggregator provides an ability to split a subset of entries in an IInvocableCache into a collection of non-intersecting subsets and then aggregate them separately and independently.

The GroupAggregator..::.Parallel type exposes the following members.

Constructors

	Name	Description
	GroupAggregator..::.Parallel	Construct a Parallel aggregator based on a specified IValueExtractor and underlying IParallelAwareAggregator.

Methods

	Name	Description
	Aggregate	Process a collection of IInvocableCacheEntry objects using the underlying extractor to split the entries into non-intersecting (distinct) groups and then apply the underlying aggregator separately to each group. (Inherited from GroupAggregator.)
	AggregateResults	Aggregate the results of the parallel aggregations.
	Equals	Compare the GroupAggregator with another object to determine equality. (Inherited from GroupAggregator.)
	Finalize	Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Determine a hash value for the GroupAggregator object according to the general object.GetHashCode() contract. (Inherited from GroupAggregator.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ReadExternal	Restore the contents of a user type instance by reading its state using the specified IPofReader object. (Inherited from GroupAggregator.)
	ToString	Return a human-readable description for this GroupAggregator. (Inherited from GroupAggregator.)
	WriteExternal	Save the contents of a POF user type instance by writing its state using the specified IPofWriter object. (Inherited from GroupAggregator.)

Fields

	Name	Description
	m_aggregator	The underlying IEntryAggregator. (Inherited from GroupAggregator.)
	m_extractor	The underlying IValueExtractor. (Inherited from GroupAggregator.)
	m_filter	The IFilter object representing the "having" clause of this "group by" aggregator. (Inherited from GroupAggregator.)

Properties

	Name	Description
	Aggregator	Obtain the underlying IEntryAggregator. (Inherited from GroupAggregator.)
	Extractor	Obtain the underlying IValueExtractor. (Inherited from GroupAggregator.)
	ParallelAggregator	Get an aggregator that can take the place of this aggregator in situations in which the IInvocableCache can aggregate in parallel.

Constructors

Methods

Fields

Properties

See Also