public abstract class UserDefinedFunction extends Object implements scala.Serializable
Constructor and Description |
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UserDefinedFunction() |
Modifier and Type | Method and Description |
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void |
close()
Tear-down method for user-defined function.
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String |
functionIdentifier() |
void |
open(FunctionContext context)
Setup method for user-defined function.
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public void open(FunctionContext context) throws Exception
By default, this method does nothing.
context
- (undocumented)Exception
public void close() throws Exception
By default, this method does nothing.
Exception
public final String functionIdentifier()
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