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

java.lang.Object
  extended by com.espertech.esper.epl.join.table.UnindexedEventTableList
All Implemented Interfaces:
EventTable, java.lang.Iterable<EventBean>

public class UnindexedEventTableList
extends java.lang.Object
implements EventTable

Simple table of events without an index, based on a List implementation rather then a set since we know there cannot be duplicates (such as a poll returning individual rows).


Constructor Summary
UnindexedEventTableList(java.util.List<EventBean> eventSet)
          Ctor.
 
Method Summary
 void add(EventBean[] addEvents)
          Add events to table.
 void addRemove(EventBean[] newData, EventBean[] oldData)
          Add and remove events from table.
 void clear()
          Clear out index.
 boolean isEmpty()
          Returns true if the index is empty, or false if not
 java.util.Iterator<EventBean> iterator()
          Returns an iterator over events in the table.
 void remove(EventBean[] removeEvents)
          Remove events from table.
 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
 

Constructor Detail

UnindexedEventTableList

public UnindexedEventTableList(java.util.List<EventBean> eventSet)
Ctor.

Parameters:
eventSet - is a list initializing the table
Method Detail

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[] addEvents)
Description copied from interface: EventTable
Add events to table.

Specified by:
add in interface EventTable
Parameters:
addEvents - to add

remove

public void remove(EventBean[] removeEvents)
Description copied from interface: EventTable
Remove events from table.

Specified by:
remove in interface EventTable
Parameters:
removeEvents - to remove

iterator

public java.util.Iterator<EventBean> iterator()
Description copied from interface: EventTable
Returns an iterator over events in the table.

Specified by:
iterator in interface EventTable
Specified by:
iterator in interface java.lang.Iterable<EventBean>
Returns:
table iterator

isEmpty

public boolean isEmpty()
Description copied from interface: EventTable
Returns true if the index is empty, or false if not

Specified by:
isEmpty in interface EventTable
Returns:
true for empty 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

clear

public void clear()
Description copied from interface: EventTable
Clear out index.

Specified by:
clear in interface EventTable

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