io.prestosql.sql.gen

Class VarArgsToMapAdapterGenerator

java.lang.Object

io.prestosql.sql.gen.VarArgsToMapAdapterGenerator

public class VarArgsToMapAdapterGenerator
extends Object

Method Summary

Modifier and Type	Method and Description
static MethodHandle	generateVarArgsToMapAdapter(Class<?> returnType, List<Class<?>> javaTypes, List<String> names, Function<Map<String,Object>,Object> function) Generate byte code that

Methods inherited from class java.lang.Object

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

Method Detail

generateVarArgsToMapAdapter

public static MethodHandle generateVarArgsToMapAdapter(Class<?> returnType,
                                                       List<Class<?>> javaTypes,
                                                       List<String> names,
                                                       Function<Map<String,Object>,Object> function)

Generate byte code that

• takes a specified number of variables as arguments (types of the arguments are provided in javaTypes)
• put the variables in a map (keys of the map are provided in names)
• invoke the provided function with the map
• return with the result of the function call (type must match returnType)