KeyIn- key type of the resulting keys
ValueIn- value type of the incoming values
ValueOut- value type of the reduced values
@Deprecated public interface CombinerFactory<KeyIn,ValueIn,ValueOut> extends Serializable
A CombinerFactory implementation is used to build
Combiner instances per key.
An implementation needs to be serializable by Hazelcast since it is distributed together with the
Mapper implementation to run alongside.
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