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java.lang.Objectnet.esper.eql.lookup.IndexedTableLookupStrategy
public class IndexedTableLookupStrategy
Index lookup strategy for subqueries.
Field Summary | |
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protected PropertyIndexedEventTable |
index
Index to look up in. |
protected EventPropertyGetter[] |
propertyGetters
Getters to use to get key values. |
protected int[] |
streamNumbers
Stream numbers to get key values from. |
Constructor Summary | |
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IndexedTableLookupStrategy(EventType[] eventTypes,
int[] streamNumbers,
String[] properties,
PropertyIndexedEventTable index)
Ctor. |
Method Summary | |
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PropertyIndexedEventTable |
getIndex()
Returns index to look up in. |
protected Object[] |
getKeys(EventBean[] eventsPerStream)
Get the index lookup keys. |
String[] |
getProperties()
Returns properties to use from lookup event to look up in index. |
Set<EventBean> |
lookup(EventBean[] eventsPerStream)
Returns matched events for a set of events to look up for. |
String |
toString()
|
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected final int[] streamNumbers
protected final PropertyIndexedEventTable index
protected final EventPropertyGetter[] propertyGetters
Constructor Detail |
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public IndexedTableLookupStrategy(EventType[] eventTypes, int[] streamNumbers, String[] properties, PropertyIndexedEventTable index)
eventTypes
- is the event types per streamstreamNumbers
- is the stream number per propertyproperties
- is the key propertiesindex
- is the table carrying the data to lookup intoMethod Detail |
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public String[] getProperties()
public PropertyIndexedEventTable getIndex()
public Set<EventBean> lookup(EventBean[] eventsPerStream)
TableLookupStrategy
lookup
in interface TableLookupStrategy
eventsPerStream
- to look up
protected Object[] getKeys(EventBean[] eventsPerStream)
eventsPerStream
- is the events for each stream
public String toString()
toString
in class Object
|
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