Package io.prestosql.operator.scalar

Class ChoicesScalarFunctionImplementation

java.lang.Object

io.prestosql.operator.scalar.ChoicesScalarFunctionImplementation

All Implemented Interfaces:

ScalarFunctionImplementation

public final class ChoicesScalarFunctionImplementation
extends Object
implements ScalarFunctionImplementation

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ChoicesScalarFunctionImplementation.ScalarImplementationChoice

Constructor Summary

Constructors

Constructor	Description
ChoicesScalarFunctionImplementation(FunctionBinding functionBinding, InvocationConvention.InvocationReturnConvention returnConvention, List<InvocationConvention.InvocationArgumentConvention> argumentConventions, MethodHandle methodHandle)
ChoicesScalarFunctionImplementation(FunctionBinding functionBinding, InvocationConvention.InvocationReturnConvention returnConvention, List<InvocationConvention.InvocationArgumentConvention> argumentConventions, MethodHandle methodHandle, Optional<MethodHandle> instanceFactory)
ChoicesScalarFunctionImplementation(FunctionBinding functionBinding, InvocationConvention.InvocationReturnConvention returnConvention, List<InvocationConvention.InvocationArgumentConvention> argumentConventions, List<Class<?>> lambdaInterfaces, MethodHandle methodHandle, Optional<MethodHandle> instanceFactory)
ChoicesScalarFunctionImplementation(FunctionBinding functionBinding, List<ChoicesScalarFunctionImplementation.ScalarImplementationChoice> choices)	Creates a ScalarFunctionImplementation consisting of one or more choices.

Method Summary

Modifier and Type	Method	Description
List<ChoicesScalarFunctionImplementation.ScalarImplementationChoice>	getChoices()
FunctionInvoker	getScalarFunctionInvoker(InvocationConvention invocationConvention)

Methods inherited from class java.lang.Object

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

Constructor Detail

ChoicesScalarFunctionImplementation

public ChoicesScalarFunctionImplementation(FunctionBinding functionBinding,
                                           InvocationConvention.InvocationReturnConvention returnConvention,
                                           List<InvocationConvention.InvocationArgumentConvention> argumentConventions,
                                           MethodHandle methodHandle)

ChoicesScalarFunctionImplementation

public ChoicesScalarFunctionImplementation(FunctionBinding functionBinding,
                                           InvocationConvention.InvocationReturnConvention returnConvention,
                                           List<InvocationConvention.InvocationArgumentConvention> argumentConventions,
                                           MethodHandle methodHandle,
                                           Optional<MethodHandle> instanceFactory)

ChoicesScalarFunctionImplementation

public ChoicesScalarFunctionImplementation(FunctionBinding functionBinding,
                                           InvocationConvention.InvocationReturnConvention returnConvention,
                                           List<InvocationConvention.InvocationArgumentConvention> argumentConventions,
                                           List<Class<?>> lambdaInterfaces,
                                           MethodHandle methodHandle,
                                           Optional<MethodHandle> instanceFactory)

ChoicesScalarFunctionImplementation

public ChoicesScalarFunctionImplementation(FunctionBinding functionBinding,
                                           List<ChoicesScalarFunctionImplementation.ScalarImplementationChoice> choices)

Creates a ScalarFunctionImplementation consisting of one or more choices.

All choices must have the same SQL signature, and are equivalent in what they do. The first choice is the default choice, which is the one used for legacy access methods. The default choice must be usable under any context. (e.g. it must not use BLOCK_POSITION convention.)

Parameters:

functionBinding -

choices - the list of choices, ordered from generic to specific

Method Detail

getChoices

public List<ChoicesScalarFunctionImplementation.ScalarImplementationChoice> getChoices()

getScalarFunctionInvoker

public FunctionInvoker getScalarFunctionInvoker(InvocationConvention invocationConvention)

Specified by:

getScalarFunctionInvoker in interface ScalarFunctionImplementation