Class Summary |
Average |
Class Average is an Aggregator that returns the average of all numeric values in the current group. |
Average.Context |
Class Context is used to hold intermediate values. |
Count |
Class Count is an Aggregator that calculates the number of items in the current group. |
ExtentBase |
Class ExtentBase is the base class for First and Last. |
ExtremaBase |
Class ExtremaBase is the base class for Max and Min. |
ExtremaBase.Context |
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First |
Class First is an Aggregator that returns the first Tuple encountered in a grouping. |
Last |
Class Last is an Aggregator that returns the last Tuple encountered. |
Max |
Class Max is an Aggregator that returns the maximum value encountered in the current group. |
Min |
Class Min is an Aggregator that returns the minimum value encountered in the current group. |
Sum |
Class Sum is an Aggregator that returns the sum of all numeric values in the current group. |