Package org.apache.poi.ss.formula.eval
Class FunctionEval
java.lang.Object
org.apache.poi.ss.formula.eval.FunctionEval
Mappings from the Excel functions to our evaluation implementations
(where available)
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Field Summary
Fields -
Method Summary
Modifier and TypeMethodDescriptionstatic Function
getBasicFunction
(int functionIndex) static Collection
<String> Returns an array of function names NOT implemented by POI.static Collection
<String> Returns a collection of function names implemented by POI.static void
registerFunction
(String name, Function func) Register a new function in runtime.
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Field Details
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functions
Array elements corresponding to unimplemented functions arenull
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Method Details
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getBasicFunction
- Returns:
null
if the specified functionIndex is for INDIRECT() or any external (add-in) function.
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registerFunction
Register a new function in runtime.- Parameters:
name
- the function namefunc
- the functoin to register- Throws:
IllegalArgumentException
- if the function is unknown or already registered.- Since:
- 3.8 beta6
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getSupportedFunctionNames
Returns a collection of function names implemented by POI.- Returns:
- an array of supported functions
- Since:
- 3.8 beta6
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getNotSupportedFunctionNames
Returns an array of function names NOT implemented by POI.- Returns:
- an array of not supported functions
- Since:
- 3.8 beta6
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