Package com.espertech.esper.client

This package and its sub-packages defines the central Esper Client APIs.

See: Description

Interface Summary

Interface	Description
ConfigurationDataCache	Marker interface for different cache settings.
ConfigurationDBRef.ConnectionFactoryDesc	Marker for different connection factory settings.
ConfigurationInformation	Provides configurations for an engine instance.
ConfigurationOperations	Provides configuration operations for configuration-time and runtime parameters.
EPAdministrator	Administrative interface to the event stream processing engine.
EPAdministratorIsolated	Administrative interfae
EPIterable	Interface to iterate over events.
EPListenable	Interface to add and remove update listeners.
EPOnDemandPreparedQuery	Interface for a prepared on-demand query that can be executed multiple times.
EPOnDemandPreparedQueryParameterized	Parameter holder for parameterized on-demand queries that are prepared with substitution parameters and that can be executed efficiently multiple times with different actual values for parameters.
EPOnDemandQueryResult	Results of an on-demand (fire-and-forget non-continuous) query.
EPPreparedStatement	Precompiled statement that is prepared with substitution parameters and that can be created and started efficiently multiple times with different actual values for parameters.
EPRuntime	Interface to event stream processing runtime services.
EPRuntimeIsolated	Runtime interface for the isolated service provider, for controlling event visibility and scheduling for the statements contained within the isolated service.
EPServiceProvider	This class provides access to the EPRuntime and EPAdministrator implementations.
EPServiceProviderIsolated	Isolated service provider for controlling event visibility and scheduling on a statement level.
EPServiceStateListener	A listener interface for callbacks regarding EPServiceProvider state changes.
EPStatement	Statement interface that provides methods to start, stop and destroy a statement as well as get statement information such as statement name, expression text and current state.
EPStatementStateListener	Interface for receiving callback events pertaining to statement creation and statement state transitions.
EventBean	Interface for event representation.
EventBeanFactory	Factory for EventBean instances given an underlying event object.
EventPropertyGetter	Get property values from an event instance for a given event property.
EventPropertyGetterIndexed	Get property values from an event instance for a given indexed event property by passing the array index.
EventPropertyGetterMapped	Get property values from an event instance for a given mapped event property by passing the map string key.
EventSender	Returns a facility to process event objects that are of a known type.
EventType	This interface provides metadata on events.
SafeIterator<E>	A concurrency-safe iterator that iterates over events representing statement results (pull API) in the face of concurrent event processing by further threads.
StatementAwareUpdateListener	Defines an interface to notify of new and old events.
UnmatchedListener	Interface to receive notification from an engine that an event that has been sent into the engine or that has been generated via insert-into has not been matched to any statement, considering all started statement's event stream filter criteria (not considering where-clause and having-clauses).
UpdateListener	Defines an interface to notify of new and old events.

Class Summary

Class	Description
Configuration	An instance of Configuration allows the application to specify properties to be used when creating a EPServiceProvider.
ConfigurationDBRef	Container for database configuration information, such as options around getting a database connection and options to control the lifecycle of connections and set connection parameters.
ConfigurationDBRef.ConnectionSettings	Supplies connectioon-level settings for a given database name.
ConfigurationDBRef.DataSourceConnection	Connection factory settings for using a DataSource.
ConfigurationDBRef.DataSourceFactory	Connection factory settings for using a Apache DBCP or other provider DataSource factory.
ConfigurationDBRef.DriverManagerConnection	Connection factory settings for using a DriverManager.
ConfigurationEngineDefaults	Provides access to engine configuration defaults for modification.
ConfigurationEngineDefaults.AlternativeContext	Returns the provider for runtime and administrative interfaces.
ConfigurationEngineDefaults.CodeGeneration	Code generation settings.
ConfigurationEngineDefaults.ConditionHandling	Configuration object for defining condition handling behavior.
ConfigurationEngineDefaults.EventMeta	Event representation metadata.
ConfigurationEngineDefaults.EventMeta.AvroSettings	Avro settings.
ConfigurationEngineDefaults.ExceptionHandling	Configuration object for defining exception handling behavior.
ConfigurationEngineDefaults.Execution	Holds engine execution-related settings.
ConfigurationEngineDefaults.Expression	Expression evaluation settings in the engine are for results of expressions.
ConfigurationEngineDefaults.Language	Language settings in the engine are for string comparisons.
ConfigurationEngineDefaults.Logging	Holds view logging settings other then the Apache commons or Log4J settings.
ConfigurationEngineDefaults.MatchRecognize	Holds match-reconize settings.
ConfigurationEngineDefaults.Patterns	Holds pattern settings.
ConfigurationEngineDefaults.Scripts	Holder for script settings.
ConfigurationEngineDefaults.StreamSelection	Holds default settings for stream selection in the select-clause.
ConfigurationEngineDefaults.Threading	Holds threading settings.
ConfigurationEngineDefaults.TimeSource	Time source configuration, the default in MILLI (millisecond resolution from System.currentTimeMillis).
ConfigurationEngineDefaults.Variables	Holds variables settings.
ConfigurationEngineDefaults.ViewResources	Holds view resources settings.
ConfigurationEventTypeAvro	Configuration for Avro event types.
ConfigurationEventTypeLegacy	Configuration information for legacy (non-JavaBean) event types.
ConfigurationEventTypeLegacy.LegacyFieldPropDesc	Encapsulates information about an accessor field backing a named event property.
ConfigurationEventTypeLegacy.LegacyMethodPropDesc	Encapsulates information about an accessor method backing a named event property.
ConfigurationEventTypeMap	Configuration object for Map-based event types.
ConfigurationEventTypeObjectArray	Configuration object for Object array-based event types.
ConfigurationEventTypeWithSupertype	Configuration object for event types with super-types and timestamp.
ConfigurationEventTypeXMLDOM	Configuration object for enabling the engine to process events represented as XML DOM document nodes.
ConfigurationEventTypeXMLDOM.XPathPropertyDesc	Descriptor class for event properties that are resolved via XPath-expression.
ConfigurationExpiryTimeCache	Expiring cache settings.
ConfigurationLRUCache	LRU cache settings.
ConfigurationMethodRef	Holds configuration information for data caches for use in method invocations in the from-clause.
ConfigurationMetricsReporting	Configuratiom for metrics reporting.
ConfigurationMetricsReporting.StmtGroupMetrics	Class to configure statement metrics reporting for a group of one or more statements.
ConfigurationPlugInAggregationFunction	Configuration information for plugging in a custom aggregation function.
ConfigurationPlugInAggregationMultiFunction	Configuration information for plugging in a custom aggregation multi-function.
ConfigurationPlugInEventRepresentation	Configuration object for plug-in event representations.
ConfigurationPlugInEventType	Configuration for a plug-in event type, which is an event type resolved via plug-in event representation.
ConfigurationPluginLoader	Holds configuration for a plugin such as an input/output adapter loader.
ConfigurationPlugInPatternObject	Configuration information for plugging in a custom view.
ConfigurationPlugInSingleRowFunction	Configuration information for plugging in a custom single-row function.
ConfigurationPlugInView	Configuration information for plugging in a custom view.
ConfigurationPlugInVirtualDataWindow	Configuration information for plugging in a custom view.
ConfigurationRevisionEventType	Configuration information for revision event types.
ConfigurationVariable	Provides variable configuration.
ConfigurationVariantStream	Configures a variant stream.
EPServiceProviderManager	Factory for instances of EPServiceProvider.
EventPropertyDescriptor	Descriptor for event property names, property types and access metadata.
FragmentEventType	Provides an event type for a property of an event.

Enum Summary

Enum	Description
Configuration.PropertyResolutionStyle	Enumeration of different resolution styles for resolving property names.
ConfigurationCacheReferenceType	Enum indicating what kind of references are used to store the cache map's keys and values.
ConfigurationDBRef.ColumnChangeCaseEnum	Controls how output column names get reflected in the event type.
ConfigurationDBRef.ConnectionLifecycleEnum	Enum controlling connection lifecycle.
ConfigurationDBRef.MetadataOriginEnum	Indicates how the engine retrieves metadata about a statement's output columns.
ConfigurationEngineDefaults.ExceptionHandling.UndeployRethrowPolicy	Enumeration of blocking techniques.
ConfigurationEngineDefaults.FilterServiceProfile	Filter service profile.
ConfigurationEngineDefaults.Threading.Locking	Enumeration of blocking techniques.
ConfigurationEngineDefaults.ThreadingProfile	Threading profile.
ConfigurationEngineDefaults.TimeSourceType	Time source type.
ConfigurationEventTypeLegacy.AccessorStyle	Accessor style defines the methods of a class that are automatically exposed via event property.
ConfigurationEventTypeLegacy.CodeGeneration	Enum to control code generation.
ConfigurationPlugInPatternObject.PatternObjectType	Choice for type of pattern object.
ConfigurationPlugInSingleRowFunction.FilterOptimizable	Controls whether a single-row function is eligible for optimization if it occurs in a filter expression.
ConfigurationPlugInSingleRowFunction.ValueCache	Enum for single-row function value cache setting.
ConfigurationRevisionEventType.PropertyRevision	Enumeration for specifying a strategy to use to merge or overlay properties.
ConfigurationVariantStream.TypeVariance	Enumeration specifying whether only the predefine types or any type of event is accepted by the variant stream.
EPStatementState	Enumerates all statement states.

Exception Summary

Exception	Description
ConfigurationException	Thrown to indicate a configuration problem.
EPException	This exception is thrown to indicate a problem in administration and runtime.
EPServiceDestroyedException	This exception is thrown to indicate that the EPServiceProvider (engine) instance has been destroyed.
EPServiceIsolationException	This exception is thrown to indicate a problem isolating statements.
EPServiceNotAllowedException	This exception is thrown to indicate that the operation is not allowed.
EPStatementException	This exception is thrown to indicate a problem in statement creation, such as syntax error or type checking problem etc.
EPStatementSyntaxException	This exception is thrown to indicate a problem in statement creation.
EPSubscriberException	This exception is thrown to indicate that a subscriber registration failed such as when the subscribe does not expose an acceptable method to receive statement results.
EventTypeException	Indicates that a problem occurred looking up, assigning or creating and event type.
PropertyAccessException	This exception is thrown to indicate a problem with a accessing a property of an EventBean.
VariableConstantValueException	Indicates that a variable cannot be set.
VariableNotFoundException	Indicates that a variable was not found.
VariableValueException	Indicates that a variable value could not be assigned.

Package com.espertech.esper.client Description

This package and its sub-packages defines the central Esper Client APIs.