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public interface VirtualDataWindowLookup
Represents a lookup strategy object that an EPL statement that queries a virtual data window obtains to perform read operations into the virtual data window.
An instance is associated to each EPL statement querying (join, subquery, on-action etc.) the virtual data window.
Method Summary | |
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java.util.Set<EventBean> |
lookup(java.lang.Object[] keys,
EventBean[] eventsPerStream)
Invoked by an EPL statement that queries a virtual data window to perform a lookup. |
Method Detail |
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java.util.Set<EventBean> lookup(java.lang.Object[] keys, EventBean[] eventsPerStream)
Keys passed are the actual query lookup values.
keys
- lookup valueseventsPerStream
- input events for the lookup
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