DistinctValues Class |
(14.1.1.0)
E55634-01
Return the ICollection of unique values extracted from a
collection of entries in a cache.
Inheritance HierarchyNamespace: Tangosol.Util.Aggregator
Assembly: Coherence (in Coherence.dll) Version: 14.1.1.1 (14.1.1.1)
SyntaxC#
public class DistinctValues : AbstractAggregator
The DistinctValues type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | DistinctValues |
Default constructor.
|
| DistinctValues(String) |
Construct a DistinctValues aggregator.
|
| DistinctValues(IValueExtractor) |
Construct a DistinctValues aggregator.
|
Properties| Name | Description | |
|---|---|---|
 | Extractor |
Determine the IValueExtractor whose values this
aggregator is aggregating.
(Inherited from AbstractAggregator.) |
| ParallelAggregator |
Get an aggregator that can take the place of this aggregator in
situations in which the IInvocableCache can
aggregate in parallel.
(Inherited from AbstractAggregator.) |
Methods| Name | Description | |
|---|---|---|
| Aggregate |
Process a set of IInvocableCacheEntry objects
in order to produce an aggregated result.
(Inherited from AbstractAggregator.) |
| AggregateResults |
Aggregate the results of the parallel aggregations.
(Inherited from AbstractAggregator.) |
 | EnsureCollection |
Return a collection that can be used to store distinct values,
creating it if one has not already been created.
|
| Equals |
Compares this object with another object for equality.
(Inherited from AbstractAggregator.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| FinalizeResult |
Obtain the result of the aggregation.
(Overrides AbstractAggregatorFinalizeResult(Boolean).) |
| GetHashCode |
Returns a hash code value for this object.
(Inherited from AbstractAggregator.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| Init |
Initialize the aggregation result.
(Overrides AbstractAggregatorInit(Boolean).) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Process |
Incorporate one aggregatable value into the result.
(Overrides AbstractAggregatorProcess(Object, Boolean).) |
| ReadExternal |
Restore the contents of a user type instance by reading its state
using the specified IPofReader object.
(Inherited from AbstractAggregator.) |
| ToString |
Provide a human-readable representation of this object.
(Inherited from AbstractAggregator.) |
| WriteExternal |
Save the contents of a POF user type instance by writing its
state using the specified IPofWriter object.
(Inherited from AbstractAggregator.) |
Fields| Name | Description | |
|---|---|---|
 | m_coll |
The resulting collection of distinct values.
|
| m_isParallel |
Set to true if this aggregator realizes that it is going to be
used in parallel.
(Inherited from AbstractAggregator.) |
RemarksIf the ICollection of entries is empty, an empty collection is returned.
This aggregator could be used in combination with MultiExtractor allowing to collect all unique combinations (tuples) of a given set of attributes.
See Also