public class LengthBatchView extends ViewSupport implements CloneableView, DataWindowView
The view works similar to a length_window but is not continuous, and similar to a time_batch however is not time-based but reacts to the number of events.
The view releases the batched events, when a certain number of batched events has been reached or exceeded, as new data to child views. The prior batch if not empty is released as old data to any child views. The view doesn't release intervals with no old or new data. It also does not collect old data published by a parent view.
If there are no events in the current and prior batch, the view will not invoke the update method of child views.
EMPTY_VIEW_ARRAY
Constructor and Description |
---|
LengthBatchView(AgentInstanceViewFactoryChainContext agentInstanceViewFactoryContext,
LengthBatchViewFactory lengthBatchViewFactory,
int size,
ViewUpdatedCollection viewUpdatedCollection)
Constructor.
|
Modifier and Type | Method and Description |
---|---|
View |
cloneView()
Duplicates the view.
|
EventType |
getEventType()
Provides metadata information about the type of object the event collection contains.
|
int |
getSize()
Returns the number of events to batch (data window size).
|
boolean |
isEmpty()
Returns true if the window is empty, or false if not empty.
|
java.util.Iterator<EventBean> |
iterator()
Allows iteration through all elements in this event collection.
|
java.lang.String |
toString() |
void |
update(EventBean[] newData,
EventBean[] oldData)
Notify that data has been added or removed from the Viewable parent.
|
void |
visitView(ViewDataVisitor viewDataVisitor) |
addView, addView, dumpChildViews, dumpUpdateParams, dumpUpdateParams, findDescendent, findViewIndex, getParent, getViews, hasViews, removeAllViews, removeView, removeView, setParent, updateChildren
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
addView, getViews, hasViews, removeAllViews, removeView
public LengthBatchView(AgentInstanceViewFactoryChainContext agentInstanceViewFactoryContext, LengthBatchViewFactory lengthBatchViewFactory, int size, ViewUpdatedCollection viewUpdatedCollection)
size
- is the number of events to batchviewUpdatedCollection
- is a collection that the view must update when receiving eventslengthBatchViewFactory
- for copying this view in a group-bypublic View cloneView()
CloneableView
Expected to return a same view in initialized state for grouping.
cloneView
in interface CloneableView
public final int getSize()
public final EventType getEventType()
EventCollection
getEventType
in interface EventCollection
public void update(EventBean[] newData, EventBean[] oldData)
View
public boolean isEmpty()
public final java.util.Iterator<EventBean> iterator()
EventCollection
iterator
in interface EventCollection
iterator
in interface java.lang.Iterable<EventBean>
public final java.lang.String toString()
toString
in class java.lang.Object
public void visitView(ViewDataVisitor viewDataVisitor)
visitView
in interface ViewDataVisitable