public class ContextMergeView extends ViewSupport implements UpdateDispatchView
child, parent| Constructor and Description |
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ContextMergeView(EventType eventType) |
| Modifier and Type | Method and Description |
|---|---|
EventType |
getEventType()
Provides metadata information about the type of object the event collection contains.
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Iterator<EventBean> |
iterator()
Allows iteration through all elements in this viewable.
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void |
newResult(UniformPair<EventBean[]> result)
Convenience method that accepts a pair of new and old data
as this is the most treated unit.
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void |
update(EventBean[] newData,
EventBean[] oldData)
Notify that data has been added or removed from the Viewable parent.
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getChild, getParent, setChild, setParentclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetParent, setParentgetChild, setChildforEach, spliteratorpublic ContextMergeView(EventType eventType)
public void update(EventBean[] newData, EventBean[] oldData)
ViewIf 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.
public void newResult(UniformPair<EventBean[]> result)
UpdateDispatchViewnewResult in interface UpdateDispatchViewresult - is new data (insert stream) and old data (remove stream)public EventType getEventType()
ViewablegetEventType in interface ViewableCopyright © 2005–2018. All rights reserved.