Package io.siddhi.core.table

Class Table

java.lang.Object

io.siddhi.core.table.Table

All Implemented Interfaces:

FindableProcessor, MemoryCalculable

Direct Known Subclasses:

AbstractRecordTable, InMemoryTable

public abstract class Table
extends Object
implements FindableProcessor, MemoryCalculable

Interface class to represent Tables in Siddhi. There are multiple implementations. Ex: InMemoryTable. Table will support basic operations of add, delete, update, update or add and contains. *

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Table.OnErrorAction	Different Type of On Error Actions

Field Summary

Fields

Modifier and Type	Field	Description
protected SiddhiAppContext	siddhiAppContext
protected io.siddhi.query.api.definition.TableDefinition	tableDefinition
Map<String,Table>	tableMap

Constructor Summary

Constructors

Constructor	Description
Table()

Method Summary

Modifier and Type	Method	Description
abstract void	add(ComplexEventChunk<StreamEvent> addingEventChunk)
void	addEvents(ComplexEventChunk<StreamEvent> addingEventChunk, int noOfEvents)
abstract CompiledUpdateSet	compileUpdateSet(io.siddhi.query.api.execution.query.output.stream.UpdateSet updateSet, MatchingMetaInfoHolder matchingMetaInfoHolder, List<VariableExpressionExecutor> variableExpressionExecutors, Map<String,Table> tableMap, SiddhiQueryContext siddhiQueryContext)	Builds the "compiled" set clause of an update query.
protected abstract void	connectAndLoadCache()
void	connectWithRetry()
protected abstract boolean	contains(StateEvent matchingEvent, CompiledCondition compiledCondition)
boolean	containsEvent(StateEvent matchingEvent, CompiledCondition compiledCondition)
abstract void	delete(ComplexEventChunk<StateEvent> deletingEventChunk, CompiledCondition compiledCondition)
void	deleteEvents(ComplexEventChunk<StateEvent> deletingEventChunk, CompiledCondition compiledCondition, int noOfEvents)
protected abstract void	destroy()
protected abstract void	disconnect()
StreamEvent	find(StateEvent matchingEvent, CompiledCondition compiledCondition)	To find events from the processor event pool, that the matches the matchingEvent based on finder logic.
protected abstract StreamEvent	find(CompiledCondition compiledCondition, StateEvent matchingEvent)
RecordTableHandler	getHandler()
boolean	getIsConnected()
boolean	getIsTryingToConnect()
io.siddhi.query.api.definition.TableDefinition	getTableDefinition()
protected abstract void	init(io.siddhi.query.api.definition.TableDefinition tableDefinition, StreamEventFactory storeEventPool, StreamEventCloner storeEventCloner, ConfigReader configReader, SiddhiAppContext siddhiAppContext, RecordTableHandler recordTableHandler)
void	initTable(io.siddhi.query.api.definition.TableDefinition tableDefinition, StreamEventFactory storeEventPool, StreamEventCloner storeEventCloner, ConfigReader configReader, SiddhiAppContext siddhiAppContext, RecordTableHandler recordTableHandler)
abstract boolean	isStateful()
protected void	onAddError(ComplexEventChunk<StreamEvent> addingEventChunk, Exception e)
protected void	onDeleteError(ComplexEventChunk<StateEvent> deletingEventChunk, CompiledCondition compiledCondition, Exception e)
protected void	onUpdateError(ComplexEventChunk<StateEvent> updatingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet, Exception e)
protected void	onUpdateOrAddError(ComplexEventChunk<StateEvent> updateOrAddingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet, AddingStreamEventExtractor addingStreamEventExtractor, Exception e)
void	setIsConnectedToFalse()
void	shutdown()
abstract void	update(ComplexEventChunk<StateEvent> updatingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet)
void	updateEvents(ComplexEventChunk<StateEvent> updatingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet, int noOfEvents)
abstract void	updateOrAdd(ComplexEventChunk<StateEvent> updateOrAddingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet, AddingStreamEventExtractor addingStreamEventExtractor)
void	updateOrAddEvents(ComplexEventChunk<StateEvent> updateOrAddingEventChunk, CompiledCondition compiledCondition, CompiledUpdateSet compiledUpdateSet, AddingStreamEventExtractor addingStreamEventExtractor, int noOfEvents)
void	waitWhileConnect()	Busy wait the threads which bind to this object and control the execution flow until table connection recovered.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.siddhi.core.query.processor.stream.window.FindableProcessor

compileCondition

Field Detail

tableMap

public Map<String,Table> tableMap

tableDefinition

protected io.siddhi.query.api.definition.TableDefinition tableDefinition

siddhiAppContext

protected SiddhiAppContext siddhiAppContext

Constructor Detail

Table

public Table()

Method Detail

initTable

public void initTable(io.siddhi.query.api.definition.TableDefinition tableDefinition,
                      StreamEventFactory storeEventPool,
                      StreamEventCloner storeEventCloner,
                      ConfigReader configReader,
                      SiddhiAppContext siddhiAppContext,
                      RecordTableHandler recordTableHandler)

init

protected abstract void init(io.siddhi.query.api.definition.TableDefinition tableDefinition,
                             StreamEventFactory storeEventPool,
                             StreamEventCloner storeEventCloner,
                             ConfigReader configReader,
                             SiddhiAppContext siddhiAppContext,
                             RecordTableHandler recordTableHandler)

getTableDefinition

public io.siddhi.query.api.definition.TableDefinition getTableDefinition()

onAddError

protected void onAddError(ComplexEventChunk<StreamEvent> addingEventChunk,
                          Exception e)

addEvents

public void addEvents(ComplexEventChunk<StreamEvent> addingEventChunk,
                      int noOfEvents)

add

public abstract void add(ComplexEventChunk<StreamEvent> addingEventChunk)

find

public StreamEvent find(StateEvent matchingEvent,
                        CompiledCondition compiledCondition)

Description copied from interface: FindableProcessor

To find events from the processor event pool, that the matches the matchingEvent based on finder logic.

Specified by:

find in interface FindableProcessor

Parameters:

matchingEvent - the event to be matched with the events at the processor

compiledCondition - the execution element responsible for matching the corresponding events that matches the matchingEvent based on pool of events at Processor

Returns:

the matched events

find

protected abstract StreamEvent find(CompiledCondition compiledCondition,
                                    StateEvent matchingEvent)
                             throws ConnectionUnavailableException

Throws:

ConnectionUnavailableException

onDeleteError

protected void onDeleteError(ComplexEventChunk<StateEvent> deletingEventChunk,
                             CompiledCondition compiledCondition,
                             Exception e)

deleteEvents

public void deleteEvents(ComplexEventChunk<StateEvent> deletingEventChunk,
                         CompiledCondition compiledCondition,
                         int noOfEvents)

delete

public abstract void delete(ComplexEventChunk<StateEvent> deletingEventChunk,
                            CompiledCondition compiledCondition)

onUpdateError

protected void onUpdateError(ComplexEventChunk<StateEvent> updatingEventChunk,
                             CompiledCondition compiledCondition,
                             CompiledUpdateSet compiledUpdateSet,
                             Exception e)

updateEvents

public void updateEvents(ComplexEventChunk<StateEvent> updatingEventChunk,
                         CompiledCondition compiledCondition,
                         CompiledUpdateSet compiledUpdateSet,
                         int noOfEvents)

update

public abstract void update(ComplexEventChunk<StateEvent> updatingEventChunk,
                            CompiledCondition compiledCondition,
                            CompiledUpdateSet compiledUpdateSet)

onUpdateOrAddError

protected void onUpdateOrAddError(ComplexEventChunk<StateEvent> updateOrAddingEventChunk,
                                  CompiledCondition compiledCondition,
                                  CompiledUpdateSet compiledUpdateSet,
                                  AddingStreamEventExtractor addingStreamEventExtractor,
                                  Exception e)

updateOrAddEvents

public void updateOrAddEvents(ComplexEventChunk<StateEvent> updateOrAddingEventChunk,
                              CompiledCondition compiledCondition,
                              CompiledUpdateSet compiledUpdateSet,
                              AddingStreamEventExtractor addingStreamEventExtractor,
                              int noOfEvents)

updateOrAdd

public abstract void updateOrAdd(ComplexEventChunk<StateEvent> updateOrAddingEventChunk,
                                 CompiledCondition compiledCondition,
                                 CompiledUpdateSet compiledUpdateSet,
                                 AddingStreamEventExtractor addingStreamEventExtractor)

containsEvent

public boolean containsEvent(StateEvent matchingEvent,
                             CompiledCondition compiledCondition)

contains

protected abstract boolean contains(StateEvent matchingEvent,
                                    CompiledCondition compiledCondition)
                             throws ConnectionUnavailableException

Throws:

ConnectionUnavailableException

connectWithRetry

public void connectWithRetry()

setIsConnectedToFalse

public void setIsConnectedToFalse()

getIsTryingToConnect

public boolean getIsTryingToConnect()

getIsConnected

public boolean getIsConnected()

waitWhileConnect

public void waitWhileConnect()

Busy wait the threads which bind to this object and control the execution flow until table connection recovered.

compileUpdateSet

public abstract CompiledUpdateSet compileUpdateSet(io.siddhi.query.api.execution.query.output.stream.UpdateSet updateSet,
                                                   MatchingMetaInfoHolder matchingMetaInfoHolder,
                                                   List<VariableExpressionExecutor> variableExpressionExecutors,
                                                   Map<String,Table> tableMap,
                                                   SiddhiQueryContext siddhiQueryContext)

Builds the "compiled" set clause of an update query. Here, all the pre-processing that can be done prior to receiving the update event is done, so that such pre-processing work will not be done at each update-event-arrival.

Parameters:

updateSet - the set of assignment expressions, each containing the table column to be updated and the expression to be assigned.

matchingMetaInfoHolder - the meta structure of the incoming matchingEvent

variableExpressionExecutors - the list of variable ExpressionExecutors already created

tableMap - map of event tables

siddhiQueryContext - current siddhi query context

Returns:

CompiledUpdateSet

connectAndLoadCache

protected abstract void connectAndLoadCache()
                                     throws ConnectionUnavailableException

Throws:

ConnectionUnavailableException

disconnect

protected abstract void disconnect()

destroy

protected abstract void destroy()

getHandler

public RecordTableHandler getHandler()

shutdown

public void shutdown()

isStateful

public abstract boolean isStateful()