net.esper.eql.view
Class InternalRouteView
java.lang.Object
net.esper.view.ViewSupport
net.esper.eql.view.InternalRouteView
- All Implemented Interfaces:
- Iterable<EventBean>, EventCollection, View, Viewable
public class InternalRouteView
- extends ViewSupport
View for internally routing events which is commenly the last step in execution of a statement
in which an insert-into clause has been specified.
Methods inherited from class net.esper.view.ViewSupport |
addView, dumpChildViews, dumpUpdateParams, findDescendent, getParent, getViews, hasViews, removeView, setParent, updateChildren, updateChildren |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
InternalRouteView
public InternalRouteView(boolean isIStream,
InternalEventRouter internalEventRouter)
- Ctor.
- Parameters:
isIStream
- true for insert stream, false for remove streaminternalEventRouter
- routes the events internally
update
public void update(EventBean[] newData,
EventBean[] oldData)
- Description copied from interface:
View
- Notify that data has been added or removed from the Viewable parent.
The last object in the newData array of objects would be the newest object added to the parent view.
The first object of the oldData array of objects would be the oldest object removed from the parent view.
If the call to update contains new (inserted) data, then the first argument will be a non-empty list and the
second will be empty. Similarly, if the call is a notification of deleted data, then the first argument will be
empty and the second will be non-empty. Either the newData or oldData will be non-null.
This method won't be called with both arguments being null, but either one could be null.
The same is true for zero-length arrays. Either newData or oldData will be non-empty.
If both are non-empty, then the update is a modification notification.
When update() is called on a view by the parent object, the data in newData will be in the collection of the
parent, and its data structures will be arranged to reflect that.
The data in oldData will not be in the parent's data structures, and any access to the parent will indicate that
that data is no longer there.
- Parameters:
newData
- is the new data that has been added to the parent viewoldData
- is the old data that has been removed from the parent view
getEventType
public EventType getEventType()
- Description copied from interface:
EventCollection
- Provides metadata information about the type of object the event collection contains.
- Returns:
- metadata for the objects in the collection
iterator
public Iterator<EventBean> iterator()
- Description copied from interface:
EventCollection
- Allows iteration through all elements in this event collection.
The iterator will return the elements in the collection in their natural order, or,
if there is no natural ordering, in some unpredictable order.
- Returns:
- an iterator which will go through all current elements in the collection.