com.espertech.esper.epl.join.table
Class PropertyCompositeEventTable

java.lang.Object
  com.espertech.esper.epl.join.table.PropertyCompositeEventTable

All Implemented Interfaces:

EventTable, java.lang.Iterable<EventBean>

Direct Known Subclasses:

PropertyCompositeEventTableImpl

public abstract class PropertyCompositeEventTable
extends java.lang.Object
implements EventTable

Constructor Summary

PropertyCompositeEventTable(java.lang.Class[] optKeyCoercedTypes, java.lang.Class[] optRangeCoercedTypes, EventTableOrganization organization)

Method Summary

void	add(EventBean[] events) Add an array of events.
void	addRemove(EventBean[] newData, EventBean[] oldData) Add and remove events from table.
abstract java.util.Map<java.lang.Object,java.lang.Object>	getIndex() Return the index object itself, or an object-array for multiple index structures.
java.lang.Integer	getNumberOfEvents() If the number of events is readily available, an implementation will return that number or it may return null to indicate that the count is not readily available.
java.lang.Class[]	getOptKeyCoercedTypes()
java.lang.Class[]	getOptRangeCoercedTypes()
EventTableOrganization	getOrganization()
abstract CompositeIndexQueryResultPostProcessor	getPostProcessor()
void	remove(EventBean[] events) Remove events.
java.lang.String	toQueryPlan()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.epl.join.table.EventTable

add, clear, destroy, getNumKeys, getProviderClass, isEmpty, iterator, remove

Constructor Detail

PropertyCompositeEventTable

public PropertyCompositeEventTable(java.lang.Class[] optKeyCoercedTypes,
                                   java.lang.Class[] optRangeCoercedTypes,
                                   EventTableOrganization organization)

Method Detail

getIndex

public abstract java.util.Map<java.lang.Object,java.lang.Object> getIndex()

Description copied from interface: EventTable

Return the index object itself, or an object-array for multiple index structures.

May return null if the information is not readily available, i.e. externally maintained index

Specified by:

getIndex in interface EventTable

Returns:

index object

getPostProcessor

public abstract CompositeIndexQueryResultPostProcessor getPostProcessor()

addRemove

public void addRemove(EventBean[] newData,
                      EventBean[] oldData)

Description copied from interface: EventTable

Add and remove events from table.

It is up to the index to decide whether to add first and then remove, or whether to remove and then add.

It is important to note that a given event can be in both the removed and the added events. This means that unique indexes probably need to remove first and then add. Most other non-unique indexes will add first and then remove since the an event can be both in the add and the remove stream.

Specified by:

addRemove in interface EventTable

Parameters:

newData - to add

oldData - to remove

add

public void add(EventBean[] events)

Add an array of events. Same event instance is not added twice. Event properties should be immutable. Allow null passed instead of an empty array.

Specified by:

add in interface EventTable

Parameters:

events - to add

Throws:

java.lang.IllegalArgumentException - if the event was already existed in the index

remove

public void remove(EventBean[] events)

Remove events.

Specified by:

remove in interface EventTable

Parameters:

events - to be removed, can be null instead of an empty array.

Throws:

java.lang.IllegalArgumentException - when the event could not be removed as its not in the index

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toQueryPlan

public java.lang.String toQueryPlan()

Specified by:

toQueryPlan in interface EventTable

getOptRangeCoercedTypes

public java.lang.Class[] getOptRangeCoercedTypes()

getOptKeyCoercedTypes

public java.lang.Class[] getOptKeyCoercedTypes()

getNumberOfEvents

public java.lang.Integer getNumberOfEvents()

Description copied from interface: EventTable

If the number of events is readily available, an implementation will return that number or it may return null to indicate that the count is not readily available.

Specified by:

getNumberOfEvents in interface EventTable

Returns:

number of events

getOrganization

public EventTableOrganization getOrganization()

Specified by:

getOrganization in interface EventTable