public class ConstructorFunctionLibrary extends Object implements FunctionLibrary
| Constructor and Description |
|---|
ConstructorFunctionLibrary(Configuration config)
Create a SystemFunctionLibrary
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| Modifier and Type | Method and Description |
|---|---|
Expression |
bind(SymbolicName.F functionName,
Expression[] arguments,
StaticContext env,
List<String> reasons)
Bind a static function call, given the URI and local parts of the function name,
and the list of expressions supplied as arguments.
|
FunctionLibrary |
copy()
This method creates a copy of a FunctionLibrary: if the original FunctionLibrary allows
new functions to be added, then additions to this copy will not affect the original, or
vice versa.
|
boolean |
isAvailable(SymbolicName.F functionName)
Test whether a function with a given name and arity is available
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitsetConfigurationpublic ConstructorFunctionLibrary(Configuration config)
config - the Configurationpublic boolean isAvailable(SymbolicName.F functionName)
FunctionLibraryThis supports the function-available() function in XSLT.
isAvailable in interface FunctionLibraryfunctionName - the qualified name of the function being called, together with its arity.
For legacy reasons, the arity may be set to -1 to mean any arity will dopublic Expression bind(SymbolicName.F functionName, Expression[] arguments, StaticContext env, List<String> reasons)
bind in interface FunctionLibraryfunctionName - The QName of the functionarguments - The expressions supplied statically in the function call. The intention is
that the static type of the arguments (obtainable via getItemType() and getCardinality() may
be used as part of the binding algorithm.env - The static contextreasons - If no matching function is found by the function library, it may add
a diagnostic explanation to this list explaining why none of the available
functions could be used.XPathException - if a function is found with the required name and arity, but
the implementation of the function cannot be loaded or used; or if an error occurs
while searching for the function; or if this function library "owns" the namespace containing
the function call, but no function was found.public FunctionLibrary copy()
copy in interface FunctionLibrary