public class NStreamOuterQueryPlanBuilder
extends java.lang.Object
Constructor and Description |
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NStreamOuterQueryPlanBuilder() |
Modifier and Type | Method and Description |
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static java.lang.String |
print(java.util.Map<java.lang.Integer,int[]> streamsJoinedPerStream)
Returns textual presentation of stream-substream relationships.
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static void |
verifyJoinedPerStream(int rootStream,
java.util.Map<java.lang.Integer,int[]> streamsJoinedPerStream)
Verifies that the tree-like structure representing which streams join (lookup) into which sub-streams
is correct, ie.
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public static void verifyJoinedPerStream(int rootStream, java.util.Map<java.lang.Integer,int[]> streamsJoinedPerStream)
rootStream
- is the stream supplying the incoming eventstreamsJoinedPerStream
- is keyed by the from-stream number and contains as values all
stream numbers of lookup into to-streams.public static java.lang.String print(java.util.Map<java.lang.Integer,int[]> streamsJoinedPerStream)
streamsJoinedPerStream
- is the tree-like structure of stream-substream