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java.lang.Object mondrian.udf.LastNonEmptyUdf
public class LastNonEmptyUdf
Definition of the user-defined function "LastNonEmpty".
Nested Class Summary |
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Nested classes/interfaces inherited from interface mondrian.spi.UserDefinedFunction |
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UserDefinedFunction.Argument |
Constructor Summary | |
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LastNonEmptyUdf()
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Method Summary | |
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Object |
execute(Evaluator evaluator,
UserDefinedFunction.Argument[] arguments)
Applies this function to a set of arguments, and returns a result. |
String |
getDescription()
Returns a description of the user-defined function. |
String |
getName()
Returns the name with which the user-defined function will be used from within MDX expressions. |
Type[] |
getParameterTypes()
Returns an array of the types of the parameters of this function. |
String[] |
getReservedWords()
Returns a list of reserved words used by this function. |
Type |
getReturnType(Type[] parameterTypes)
Returns the return-type of this function. |
Syntax |
getSyntax()
Returns the syntactic type of the user-defined function. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public LastNonEmptyUdf()
Method Detail |
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public String getName()
UserDefinedFunction
getName
in interface UserDefinedFunction
public String getDescription()
UserDefinedFunction
getDescription
in interface UserDefinedFunction
public Syntax getSyntax()
UserDefinedFunction
Syntax.Function
.
getSyntax
in interface UserDefinedFunction
public Type getReturnType(Type[] parameterTypes)
UserDefinedFunction
getReturnType
in interface UserDefinedFunction
public Type[] getParameterTypes()
UserDefinedFunction
getParameterTypes
in interface UserDefinedFunction
public Object execute(Evaluator evaluator, UserDefinedFunction.Argument[] arguments)
UserDefinedFunction
execute
in interface UserDefinedFunction
evaluator
- Evaluator containts the runtime context, in particular
the current member of each dimension.arguments
- Expressions which yield the arguments of this function.
Most user-defined functions will evaluate all arguments before using
them. Functions such as IIf
do not evaluate all
arguments; this technique is called lazy evaluation.
public String[] getReservedWords()
UserDefinedFunction
getReservedWords
in interface UserDefinedFunction
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