Package com.espertech.esper.epl.core

Contains EPL statement specification classes define the constructs that make up an EPL statement, such as the list of items in the select clause, the insert-into stream name and property names etc.

See:
Description

Interface Summary

EngineImportService	Service for engine-level resolution of static methods and aggregation methods.
MethodResolutionService	Service for resolving methods and aggregation functions, and for creating managing aggregation instances.
OrderByProcessor	A processor for ordering output events according to the order specified in the order-by clause.
OrderByProcessorFactory	A processor for ordering output events according to the order specified in the order-by clause.
ResultSetProcessor	Processor for result sets coming from 2 sources.
ResultSetProcessorFactory	Processor prototype for result sets for instances that apply the select-clause, group-by-clause and having-clauses as supplied.
SelectExprProcessor	Interface for processors of select-clause items, implementors are computing results based on matching events.
SelectExprProcessorDeliveryCallback
StreamTypeService	Service supplying stream number and property type information.

Class Summary

BindProcessor	Works in conjunction with SelectExprResultProcessor to present a result as an object array for 'natural' delivery.
BindProcessorEvaluatorStream
BindProcessorEvaluatorStreamTable
ColumnNamedNodeSwapper	A utility class for replacing select-clause column names with their definitions in expression node trees.
EngineImportServiceImpl	Implementation for engine-level imports.
EngineImportSingleRowDesc	Provides information about a single-row function.
EngineSettingsService	Service for engine-level settings around threading and concurrency.
MethodPollingExecStrategyBase	Viewable providing historical data from a database.
MethodPollingExecStrategyBaseArray
MethodPollingExecStrategyBaseCollection
MethodPollingExecStrategyBaseIterator
MethodPollingExecStrategyMapArray
MethodPollingExecStrategyMapCollection
MethodPollingExecStrategyMapIterator
MethodPollingExecStrategyMapPlain
MethodPollingExecStrategyOAArray
MethodPollingExecStrategyOACollection
MethodPollingExecStrategyOAIterator
MethodPollingExecStrategyOAPlain
MethodPollingExecStrategyPOJOArray
MethodPollingExecStrategyPOJOCollection
MethodPollingExecStrategyPOJOIterator
MethodPollingExecStrategyPOJOPlain
MethodPollingViewable	Polling-data provider that calls a static method on a class and passed parameters, and wraps the results as POJO events.
MethodPollingViewableFactory	Factory for method-invocation data provider streams.
MethodPollingViewableFactory.MethodMetadataDesc
MethodResolutionServiceImpl	Implements method resolution.
OrderByElement
OrderByProcessorFactoryFactory	Factory for OrderByProcessor processors.
OrderByProcessorFactoryImpl	An order-by processor that sorts events according to the expressions in the order_by clause.
OrderByProcessorImpl	An order-by processor that sorts events according to the expressions in the order_by clause.
OrderByProcessorOrderedLimit	Sorter and row limiter in one: sorts using a sorter and row limits
OrderByProcessorOrderedLimitFactory	Sorter and row limiter in one: sorts using a sorter and row limits
OrderByProcessorRowLimitOnly	An order-by processor that sorts events according to the expressions in the order_by clause.
OrderByProcessorRowLimitOnlyFactory	An order-by processor that sorts events according to the expressions in the order_by clause.
PropertyResolutionDescriptor	Encapsulates the result of resolving a property and optional stream name against a supplied list of streams StreamTypeService.
ResultSetAggregateAllIterator	Iterator for aggregation results that aggregate all rows.
ResultSetAggregateGroupedIterator	Iterator for group-by with aggregation.
ResultSetProcessorAggregateAll	Result set processor for the case: aggregation functions used in the select clause, and no group-by, and not all of the properties in the select clause are under an aggregation function.
ResultSetProcessorAggregateAllFactory	Result set processor prototype for the case: aggregation functions used in the select clause, and no group-by, and not all of the properties in the select clause are under an aggregation function.
ResultSetProcessorAggregateGrouped	Result-set processor for the aggregate-grouped case: there is a group-by and one or more non-aggregation event properties in the select clause are not listed in the group by, and there are aggregation functions.
ResultSetProcessorAggregateGroupedFactory	Result-set processor prototype for the aggregate-grouped case: there is a group-by and one or more non-aggregation event properties in the select clause are not listed in the group by, and there are aggregation functions.
ResultSetProcessorBaseSimple	Result set processor for the simplest case: no aggregation functions used in the select clause, and no group-by.
ResultSetProcessorFactoryDesc	Processor prototype for result sets for instances that apply the select-clause, group-by-clause and having-clauses as supplied.
ResultSetProcessorFactoryFactory	Factory for output processors.
ResultSetProcessorHandThrougFactory	Result set processor prototye for the hand-through case: no aggregation functions used in the select clause, and no group-by, no having and ordering.
ResultSetProcessorHandThrough	Result set processor for the hand-through case: no aggregation functions used in the select clause, and no group-by, no having and ordering.
ResultSetProcessorRowForAll	Result set processor for the case: aggregation functions used in the select clause, and no group-by, and all properties in the select clause are under an aggregation function.
ResultSetProcessorRowForAllFactory	Result set processor prototype for the case: aggregation functions used in the select clause, and no group-by, and all properties in the select clause are under an aggregation function.
ResultSetProcessorRowPerGroup	Result set processor for the fully-grouped case: there is a group-by and all non-aggregation event properties in the select clause are listed in the group by, and there are aggregation functions.
ResultSetProcessorRowPerGroupFactory	Result set processor prototype for the fully-grouped case: there is a group-by and all non-aggregation event properties in the select clause are listed in the group by, and there are aggregation functions.
ResultSetProcessorRowPerGroupRollup
ResultSetProcessorRowPerGroupRollupFactory	Result set processor prototype for the fully-grouped case: there is a group-by and all non-aggregation event properties in the select clause are listed in the group by, and there are aggregation functions.
ResultSetProcessorRowPerGroupRollupUnbound
ResultSetProcessorRowPerGroupUnbound
ResultSetProcessorSimple	Result set processor for the simplest case: no aggregation functions used in the select clause, and no group-by.
ResultSetProcessorSimpleFactory	Result set processor prototype for the simplest case: no aggregation functions used in the select clause, and no group-by.
ResultSetProcessorSimpleTransform	Method to transform an event based on the select expression.
ResultSetProcessorUtil
ResultSetRowPerGroupIterator	Iterator for the group-by case with a row per group.
RowLimitProcessor	An limit-processor for use with "limit" and "offset".
RowLimitProcessorFactory	A factory for row-limit processor instances.
SelectExprEventTypeRegistry	Registry for event types creates as part of the select expression analysis.
SelectExprInsertEventBeanFactory
SelectExprInsertEventBeanFactory.ExprEvaluatorJoinWildcard
SelectExprInsertEventBeanFactory.SelectExprInsertNativeBase
SelectExprInsertEventBeanFactory.SelectExprInsertNativeExpressionCoerceBase
SelectExprInsertEventBeanFactory.SelectExprInsertNativeExpressionCoerceMap
SelectExprInsertEventBeanFactory.SelectExprInsertNativeExpressionCoerceNative
SelectExprInsertEventBeanFactory.SelectExprInsertNativeExpressionCoerceObjectArray
SelectExprInsertEventBeanFactory.SelectExprInsertNativeNoWiden
SelectExprInsertEventBeanFactory.SelectExprInsertNativeWidening
SelectExprJoinWildcardProcessorFactory
SelectExprJoinWildcardProcessorMap	Processor for select-clause expressions that handles wildcards.
SelectExprJoinWildcardProcessorObjectArray	Processor for select-clause expressions that handles wildcards.
SelectExprJoinWildcardProcessorTableRows	Processor for select-clause expressions that handles wildcards.
SelectExprProcessorFactory	Factory for select expression processors.
SelectExprProcessorFactory.SelectExprBuckets
SelectExprProcessorHelper	Processor for select-clause expressions that handles a list of selection items represented by expression nodes.
SelectExprProcessorWDeliveryCallback	Interface for processors of select-clause items, implementors are computing results based on matching events.
SelectExprResultProcessor	A select expression processor that check what type of result (synthetic and natural) event is expected and produces.
SelectExprWildcardProcessor	Processor for select-clause expressions that handles wildcards for single streams with no insert-into.
SelectExprWildcardTableProcessor	Processor for select-clause expressions that handles wildcards for single streams with no insert-into.
StreamTypeServiceImpl	Implementation that provides stream number and property type information.
ViewResourceDelegateUnverified	Coordinates between view factories and requested resource (by expressions) the availability of view resources to expressions.
ViewResourceDelegateVerified	Coordinates between view factories and requested resource (by expressions) the availability of view resources to expressions.
ViewResourceDelegateVerifiedStream	Coordinates between view factories and requested resource (by expressions) the availability of view resources to expressions.

Enum Summary

MethodPollingExecStrategyEnum

Exception Summary

DuplicatePropertyException	Indicates a property exists in multiple streams.
EngineImportException	Indicates a problem importing classes, aggregation functions and the like.
EngineImportUndefinedException	Indicates a problem importing classes, aggregation functions and the like.
EngineNoSuchCtorException	Exception for resolution of a method failed.
EngineNoSuchMethodException	Exception for resolution of a method failed.
PropertyNotFoundException	Exception to indicate that a property name used in a filter doesn't resolve.
StreamNotFoundException	Exception to indicate that a stream name could not be resolved.
StreamTypesException	Base class for stream and property name resolution errors.

Package com.espertech.esper.epl.core Description

Contains EPL statement specification classes define the constructs that make up an EPL statement, such as the list of items in the select clause, the insert-into stream name and property names etc.