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java.lang.Objectnet.esper.eql.spec.StreamSpec
net.esper.eql.spec.PatternStreamSpec
public class PatternStreamSpec
Specification for building an event stream out of a pattern statement and views staggered onto the pattern statement.
The pattern statement is represented by the top EvalNode evaluation node. A pattern statement contains tagged events (i.e. a=A -> b=B). Thus the resulting event type is has properties "a" and "b" of the type of A and B.
Constructor Summary | |
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PatternStreamSpec(EvalNode evalNode,
Map<String,EventType> taggedEventTypes,
List<ViewSpec> viewSpecs,
String optionalStreamName)
Ctor. |
Method Summary | |
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EvalNode |
getEvalNode()
Returns the pattern expression evaluation node for the top pattern operator. |
Map<String,EventType> |
getTaggedEventTypes()
Returns event types tagged in the pattern expression. |
Methods inherited from class net.esper.eql.spec.StreamSpec |
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getOptionalStreamName, getViewSpecs |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PatternStreamSpec(EvalNode evalNode, Map<String,EventType> taggedEventTypes, List<ViewSpec> viewSpecs, String optionalStreamName)
evalNode
- - pattern evaluation node representing pattern statementviewSpecs
- - specifies what view to use to derive datataggedEventTypes
- - event tags and their types as specified in the pattern, copied to allow original collection to changeoptionalStreamName
- - stream name, or null if none suppliedMethod Detail |
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public EvalNode getEvalNode()
public Map<String,EventType> getTaggedEventTypes()
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