Tangosol.Util.Aggregator Namespace |
(14.1.1.0)
E55634-01
Contains various aggregator implementations.
Classes| Class | Description | |
|---|---|---|
 | AbstractAggregator |
Abstract base class implementation of IEntryAggregator
that supports parallel aggregation.
|
| AbstractComparableAggregator |
Abstract aggregator that processes values extracted from a set of
entries in a cache, with knowledge of how to compare those values.
|
| AbstractDecimalAggregator |
Abstract aggregator that processes IComparable values
extracted from a set of entries in a IDictionary and returns
a result in a form of a Decimal value.
|
| AbstractDoubleAggregator |
Abstract aggregator that processes numeric values extracted from a
collection of entries in a cache.
|
| AbstractLongAggregator |
Abstract aggregator that processes numeric values extracted from a
collection of entries in a cache.
|
| ComparableMax |
Calculates a maximum among values extracted from a set of entries
in a cache.
|
| ComparableMin |
Calculates a minimum among values extracted from a set of entries
in a cache.
|
| CompositeAggregator |
CompositeAggregator provides an ability to execute a collection of
aggregators against the same subset of the entries in an
IInvocableCache, resulting in a list of
corresponding aggregation results.
|
| CompositeAggregatorParallel | Obsolete.
Parallel implementation of the CompositeAggregator.
|
| Count |
Calculates a number of values in an entries collection.
|
| DecimalAverage |
Calculates an average for values of any numberic type extracted from
a set of entries in a IDictionary in a form of a
Decimal value.
|
| DecimalMax |
Calculates a maximum of numeric values extracted from a set of
entries in a IDictionary in a form of a Decimal
value.
|
| DecimalMin |
Calculates a minimum of numeric values extracted from a set of
entries in a IDictionary in a form of a Decimal
value.
|
| DecimalSum |
Calculates a minimum of numeric values extracted from a set of
entries in a IDictionary in a form of a Decimal
value.
|
| DistinctValues |
Return the ICollection of unique values extracted from a
collection of entries in a cache.
|
| DoubleAverage |
Calculates an average for values of any numberic type extracted from
a collection of entries in a cache.
|
| DoubleMax |
Calculates a maximum of numeric values extracted from a collection of
entries in a cache.
|
| DoubleMin |
Calculates a minimum of numeric values extracted from a collection of
entries in a cache.
|
| DoubleSum |
Sums up numeric values extracted from a collection of entries in a
cache.
|
| GroupAggregator |
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.
|
| GroupAggregatorParallel | Obsolete.
Parallel implementation of the GroupAggregator.
|
| LongMax |
Calculates a maximum of numeric values extracted from a collection of
entries in a cache.
|
| LongMin |
Calculates a minimum of numeric values extracted from a collection of
entries in a cache.
|
| LongSum |
Sums up numeric values extracted from a collection of entries in a
cache.
|
| PriorityAggregator |
PriorityAggregator is used to explicitly control the scheduling
priority and timeouts for execution of IEntryAggregator
-based methods.
|
| QueryRecorder |
This parallel aggregator used to produce a {@link com.tangosol.util.QueryRecord}
object that contains an estimated or actual cost of the query execution
for a given filter.
For example, the following code will return a QueryPlan, containing the
estimated query cost and corresponding execution steps.
|
| ReducerAggregator |
The ReducerAggregator will return a portion of value attributes based on the
provided ValueExtractor, instead of returning the complete set of values.
|
| TopNAggregator |
TopNAggregator is a ParallelAwareAggregator that aggregates the
top N extracted values into an array. The extracted values
must not be null, but do not need to be unique.
|
 | TopNAggregatorExtractingConverter |
A value-extracting converter.
|
| TopNAggregatorPartialResult |
The sorted partial result.
|
Enumerations| Enumeration | Description | |
|---|---|---|
 | QueryRecorderRecordType |
RecordType enum specifies whether the QueryRecorder should be
used to produce a QueryRecord object that contains an estimated
or an actual cost of the query execution.
|