public class SubselectAggregatorViewUnfilteredGrouped extends SubselectAggregatorViewBase
aggregationService, eventsPerStream, exprEvaluatorContext, groupKeys, optionalFilterExpr
child, parent
Constructor and Description |
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SubselectAggregatorViewUnfilteredGrouped(AggregationService aggregationService,
ExprEvaluator optionalFilterExpr,
ExprEvaluatorContext exprEvaluatorContext,
ExprEvaluator groupKeys) |
Modifier and Type | Method and Description |
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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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filter, generateGroupKey, getEventType, iterator
getChild, getParent, setChild, setParent
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
forEach, spliterator
public SubselectAggregatorViewUnfilteredGrouped(AggregationService aggregationService, ExprEvaluator optionalFilterExpr, ExprEvaluatorContext exprEvaluatorContext, ExprEvaluator groupKeys)
public void update(EventBean[] newData, EventBean[] oldData)
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.
newData
- is the new data that has been added to the parent viewoldData
- is the old data that has been removed from the parent viewCopyright © 2005–2019. All rights reserved.