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Oracle® Coherence .NET API Reference
GroupAggregator..::.Parallel Members
GroupAggregator..::.Parallel Class Constructors Methods Fields Properties See Also

Oracle® Coherence .NET API Reference Release 3.6.1
E18812-01

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.

# See Also

GroupAggregator..::.Parallel Class
Tangosol.Util.Aggregator Namespace