Package io.siddhi.core.aggregation

Interface Summary

Interface	Description
Executor	This is the parent interface representing Event executor for incremental execution in Siddhi.

Class Summary

Class	Description
AggregationExpressionBuilder	Builder to the Aggregation on condition.
AggregationExpressionVisitor	Visitor class to reduce on condition Expression
AggregationRuntime	Aggregation runtime managing aggregation operations for aggregation definition.
BaseIncrementalValueStore	Store for maintaining the base values related to incremental aggregation.
IncrementalAggregationProcessor	Incremental Aggregation Processor to consume events to Incremental Aggregators.
IncrementalDataAggregator	This class implements the logic to aggregate data that is in-memory or in tables, in incremental data processing.
IncrementalDataPurger	This class implements the logic which is needed to purge data which are related to incremental
IncrementalExecutor	Incremental executor class which is responsible for performing incremental aggregation.
IncrementalExecutorsInitialiser	This class is used to recreate in-memory data from the tables (Such as RDBMS) in incremental aggregation.
OutOfOrderEventsDataAggregator	This class implements logic to process aggregates(after retrieval from tables) that were aggregated using external timestamp.