public interface FunctionContext
FunctionTyper
associated with the function
to provide information necessary for performing
type checks.Modifier and Type | Method and Description |
---|---|
Object |
getArgument(int i)
Gets the specified argument.
|
int |
getArgumentCount()
Gets the number of arguments passed to the function.
|
ScalarTokenType |
getArgumentType(int i)
Gets the datatype of the specified argument.
|
String |
getLabel()
Gets the name of the function being evaluated.
|
String getLabel()
int getArgumentCount()
ScalarTokenType getArgumentType(int i)
In the context passed to FunctionTyper.computeUpperBound(FunctionContext)
,
the returned type is the upper bound on the argument's type.
In the context passed to FunctionTyper.computeResultType(FunctionContext)
,
the returned type is the actual type of the argument.
i
- the index of the argument for which to get the typeScalarValuedFunction
, null
is returned.Object getArgument(int i)
i
- the index of the argument to getCopyright © 2024 Actian Corporation. All rights reserved.