com.espertech.esper.event.vaevent

Class ValueAddEventServiceImpl

java.lang.Object

com.espertech.esper.event.vaevent.ValueAddEventServiceImpl

All Implemented Interfaces:

ValueAddEventService

public class ValueAddEventServiceImpl
extends Object
implements ValueAddEventService

Service for handling revision event types.

Each named window instance gets a dedicated revision processor.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,ValueAddEventProcessor>	processorsByNamedWindow Map of named window name and processor.
protected Map<String,RevisionSpec>	specificationsByRevisionName Map of revision event name and revision compiled specification.
protected Map<String,ValueAddEventProcessor>	variantProcessors Map of revision event stream and variant stream processor.

Constructor Summary

Constructors

Constructor and Description
ValueAddEventServiceImpl() Ctor.

Method Summary

Modifier and Type	Method and Description
void	addRevisionEventType(String revisioneventTypeName, ConfigurationRevisionEventType config, EventAdapterService eventAdapterService) Adds a new revision event types.
void	addVariantStream(String variantStreamname, ConfigurationVariantStream variantStreamConfig, EventAdapterService eventAdapterService, EventTypeIdGenerator eventTypeIdGenerator) Adds a new variant stream.
EventType	createRevisionType(String namedWindowName, String name, StatementStopService statementStopService, EventAdapterService eventAdapterService, EventTypeIdGenerator eventTypeIdGenerator) Upon named window creation, create a unique revision event type that this window processes.
EventType[]	getValueAddedTypes() Returns all event types representing value-add event types.
ValueAddEventProcessor	getValueAddProcessor(String name) Gets a value-added event processor.
EventType	getValueAddUnderlyingType(String name) Upon named window creation, and during resolution of type specified as part of a named window create statement, returns looks up the revision event type name provided and return the revision event type if found, or null if not found.
void	init(Map<String,ConfigurationRevisionEventType> configRevision, Map<String,ConfigurationVariantStream> configVariant, EventAdapterService eventAdapterService, EventTypeIdGenerator eventTypeIdGenerator) Called at initialization time, verifies configurations provided.
boolean	isRevisionTypeName(String revisionTypeName) Upon named window creation, check if the name used is a revision event type name.
protected static RevisionSpec	validateRevision(String revisioneventTypeName, ConfigurationRevisionEventType config, EventAdapterService eventAdapterService) Valiate the revision configuration.
static VariantSpec	validateVariantStream(String variantStreamname, ConfigurationVariantStream variantStreamConfig, EventAdapterService eventAdapterService) Validate the variant stream definition.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

specificationsByRevisionName

protected final Map<String,RevisionSpec> specificationsByRevisionName

Map of revision event name and revision compiled specification.

processorsByNamedWindow

protected final Map<String,ValueAddEventProcessor> processorsByNamedWindow

Map of named window name and processor.

variantProcessors

protected final Map<String,ValueAddEventProcessor> variantProcessors

Map of revision event stream and variant stream processor.

Constructor Detail

ValueAddEventServiceImpl

public ValueAddEventServiceImpl()

Ctor.

Method Detail

getValueAddedTypes

public EventType[] getValueAddedTypes()

Description copied from interface: ValueAddEventService

Returns all event types representing value-add event types.

Specified by:

getValueAddedTypes in interface ValueAddEventService

Returns:

value-add event type

init

public void init(Map<String,ConfigurationRevisionEventType> configRevision,
                 Map<String,ConfigurationVariantStream> configVariant,
                 EventAdapterService eventAdapterService,
                 EventTypeIdGenerator eventTypeIdGenerator)
          throws ConfigurationException

Description copied from interface: ValueAddEventService

Called at initialization time, verifies configurations provided.

Specified by:

init in interface ValueAddEventService

Parameters:

configRevision - is the revision types to add

configVariant - is the variant streams to add

eventAdapterService - for obtaining event type information for each name

eventTypeIdGenerator - event type id provider

Throws:

ConfigurationException

addRevisionEventType

public void addRevisionEventType(String revisioneventTypeName,
                                 ConfigurationRevisionEventType config,
                                 EventAdapterService eventAdapterService)
                          throws ConfigurationException

Description copied from interface: ValueAddEventService

Adds a new revision event types.

Specified by:

addRevisionEventType in interface ValueAddEventService

Parameters:

revisioneventTypeName - to add

config - the revision event type configuration

eventAdapterService - for obtaining event type information for each name

Throws:

ConfigurationException

addVariantStream

public void addVariantStream(String variantStreamname,
                             ConfigurationVariantStream variantStreamConfig,
                             EventAdapterService eventAdapterService,
                             EventTypeIdGenerator eventTypeIdGenerator)
                      throws ConfigurationException

Description copied from interface: ValueAddEventService

Adds a new variant stream.

Specified by:

addVariantStream in interface ValueAddEventService

Parameters:

variantStreamname - the name of the type

variantStreamConfig - the configs

eventAdapterService - for handling nested events

eventTypeIdGenerator - event type id provider

Throws:

ConfigurationException - if the configuration is invalid

validateVariantStream

public static VariantSpec validateVariantStream(String variantStreamname,
                                                ConfigurationVariantStream variantStreamConfig,
                                                EventAdapterService eventAdapterService)

Validate the variant stream definition.

Parameters:

variantStreamname - the stream name

variantStreamConfig - the configuration information

eventAdapterService - the event adapters

Returns:

specification for variant streams

createRevisionType

public EventType createRevisionType(String namedWindowName,
                                    String name,
                                    StatementStopService statementStopService,
                                    EventAdapterService eventAdapterService,
                                    EventTypeIdGenerator eventTypeIdGenerator)

Description copied from interface: ValueAddEventService

Upon named window creation, create a unique revision event type that this window processes.

Specified by:

createRevisionType in interface ValueAddEventService

Parameters:

namedWindowName - name of window

name - name to use

statementStopService - for handling stops

eventAdapterService - for event type info

eventTypeIdGenerator - event type id provider

Returns:

revision event type

getValueAddProcessor

public ValueAddEventProcessor getValueAddProcessor(String name)

Description copied from interface: ValueAddEventService

Gets a value-added event processor.

Specified by:

getValueAddProcessor in interface ValueAddEventService

Parameters:

name - of the value-add events

Returns:

processor

getValueAddUnderlyingType

public EventType getValueAddUnderlyingType(String name)

Description copied from interface: ValueAddEventService

Upon named window creation, and during resolution of type specified as part of a named window create statement, returns looks up the revision event type name provided and return the revision event type if found, or null if not found.

Specified by:

getValueAddUnderlyingType in interface ValueAddEventService

Parameters:

name - to look up

Returns:

null if not found, of event type

isRevisionTypeName

public boolean isRevisionTypeName(String revisionTypeName)

Description copied from interface: ValueAddEventService

Upon named window creation, check if the name used is a revision event type name.

Specified by:

isRevisionTypeName in interface ValueAddEventService

Parameters:

revisionTypeName - to check

Returns:

true if revision event type, false if not

validateRevision

protected static RevisionSpec validateRevision(String revisioneventTypeName,
                                               ConfigurationRevisionEventType config,
                                               EventAdapterService eventAdapterService)
                                        throws ConfigurationException

Valiate the revision configuration.

Parameters:

revisioneventTypeName - name of revision types

config - configures revision type

eventAdapterService - event adapters

Returns:

revision specification

Throws:

ConfigurationException - if the configs are invalid