trait UnboundFunction extends Function
Represents a user-defined function that is not bound to input types.
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3.2.0
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abstract
def
bind(inputType: StructType): BoundFunction
Bind this function to an input type.
Bind this function to an input type.
If the input type is not supported, implementations must throw
UnsupportedOperationException.For example, a "length" function that only supports a single string argument should throw UnsupportedOperationException if the struct has more than one field or if that field is not a string, and it may optionally throw if the field is nullable.
- inputType
a struct type for inputs that will be passed to the bound function
- returns
a function that can process rows with the given input type
- Exceptions thrown
UnsupportedOperationExceptionIf the function cannot be applied to the input type
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abstract
def
description(): String
Returns Function documentation.
Returns Function documentation.
- returns
this function's documentation
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abstract
def
name(): String
A name to identify this function.
A name to identify this function. Implementations should provide a meaningful name, like the database and function name from the catalog.
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==(arg0: Any): Boolean
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asInstanceOf[T0]: T0
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eq(arg0: AnyRef): Boolean
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def
getClass(): Class[_]
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notify(): Unit
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notifyAll(): Unit
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def
toString(): String
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def
wait(arg0: Long, arg1: Int): Unit
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def
wait(arg0: Long): Unit
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