Package com.codedstreams.otterstreams.sql.udf

Class MLInferenceFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.ScalarFunction

com.codedstreams.otterstreams.sql.udf.MLInferenceFunction

All Implemented Interfaces:

Serializable, org.apache.flink.table.functions.FunctionDefinition

public class MLInferenceFunction
extends org.apache.flink.table.functions.ScalarFunction

Flink SQL scalar function for ML inference. Usage: SELECT ml_score(features, 'fraud-model') FROM transactions;

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
MLInferenceFunction()

Method Summary

Modifier and Type	Method	Description
Double	eval(Map<String,Object> features, String modelName)

Methods inherited from class org.apache.flink.table.functions.ScalarFunction

getKind, getParameterTypes, getResultType, getTypeInference

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

Constructor Detail

MLInferenceFunction

public MLInferenceFunction()

Method Detail

eval

public Double eval(Map<String,Object> features,
                   String modelName)
            throws InferenceException

Throws:

InferenceException