Package org.apache.hadoop.hive.ql.optimizer.signature

Interface Summary

Interface	Description
OpTreeSignatureFactory	A simple cache backend to prevent repeated signature computations.

Class Summary

Class	Description
OpSignature	Signature of the operator(non-recursive).
OpTreeSignature	Operator tree signature.
OpTreeSignatureFactory.CachedFactory
OpTreeSignatureFactory.Direct
RuntimeStatsMap	This class makes it easier for jackson to comprehend the map type Instead of getting into convincing Jackson to store the map with serializers and typefactory tricks; this class is a simple "repacker" to and from list.
RuntimeStatsPersister	Enables to encode/decode runtime statistics values into textual form.
SignatureUtils	Enables to calculate the signature of an object.

Annotation Types Summary

Annotation Type	Description
Signature	Marks the method to be included in the signature.