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Package com.tangosol.util.aggregator

Contains concrete InvocableMap.EntryAggregator implementations.

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Description

Class Summary

AbstractAggregator	Abstract base class implementation of InvocableMap.EntryAggregator that supports parallel aggregation.
AbstractBigDecimalAggregator	Abstract aggregator that processes Comparable values extracted from a set of entries in a Map and returns a result in a form of a BigDecimal value.
AbstractComparableAggregator	Abstract aggregator that processes values extracted from a set of entries in a Map, with knowledge of how to compare those values.
AbstractDoubleAggregator	Abstract aggregator that processes numeric values extracted from a set of entries in a Map.
AbstractLongAggregator	Abstract aggregator that processes numeric values extracted from a set of entries in a Map.
AsynchronousAggregator	A marker EntryAggregator wrapper class that allows for an asynchronous invocation of the underlying aggregator.
BigDecimalAverage	Calculates an average for values of any numberic type extracted from a set of entries in a Map in a form of a BigDecimal value.
BigDecimalMax	Calculates a maximum of numeric values extracted from a set of entries in a Map in a form of a BigDecimal value.
BigDecimalMin	Calculates a minimum of numeric values extracted from a set of entries in a Map in a form of a BigDecimal value.
BigDecimalSum	Calculates an sum for values of any numberic type extracted from a set of entries in a Map in a form of a BigDecimal value.
ComparableMax	Calculates a maximum among values extracted from a set of entries in a Map.
ComparableMin	Calculates a minimum among values extracted from a set of entries in a Map.
CompositeAggregator	CompositeAggregator provides an ability to execute a collection of aggregators against the same subset of the entries in an InvocableMap, resulting in a list of corresponding aggregation results.
CompositeAggregator.Parallel	Parallel implementation of the CompositeAggregator.
Count	Calculates a number of values in an entry set.
DistinctValues	Return the set of unique values extracted from a set of entries in a Map.
DoubleAverage	Calculates an average for values of any numeric type extracted from a set of entries in a Map.
DoubleMax	Calculates a maximum of numeric values extracted from a set of entries in a Map.
DoubleMin	Calculates a minimum of numeric values extracted from a set of entries in a Map.
DoubleSum	Sums up numeric values extracted from a set of entries in a Map.
GroupAggregator	The GroupAggregator provides an ability to split a subset of entries in an InvocableMap into a collection of non-intersecting subsets and then aggregate them separately and independently.
GroupAggregator.Parallel	Parallel implementation of the GroupAggregator.
LongMax	Calculates a maximum of numeric values extracted from a set of entries in a Map.
LongMin	Calculates a minimum of numeric values extracted from a set of entries in a Map.
LongSum	Sums up numeric values extracted from a set of entries in a Map.
PriorityAggregator	PriorityAggregator is used to explicitly control the scheduling priority and timeouts for execution of EntryAggregator-based methods.
QueryRecorder	This parallel aggregator used to produce a QueryRecord object that contains an estimated or actual cost of the query execution for a given filter.
QueryRecorder.RecordType	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.
ReducerAggregator	The ReducerAggregator is used to implement functionality similar to CacheMap.getAll(Collection) API.
TopNAggregator	TopNAggregator is a ParallelAwareAggregator that aggregates the top N extracted values into an array.
TopNAggregator.PartialResult	The sorted partial result.

Package com.tangosol.util.aggregator Description

Contains concrete InvocableMap.EntryAggregator implementations.

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