| java.lang.Object
 net.sf.saxon.functions.SystemFunctionLibrary
| SystemFunctionLibrary | | public class SystemFunctionLibrary implements FunctionLibrary(Code) | | The SystemFunctionLibrary represents the collection of functions in the fn: namespace. That is, the
functions defined in the "Functions and Operators" specification, optionally augmented by the additional
functions defined in XSLT.
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| Constructor Summary | |
| public | SystemFunctionLibrary(int functionSet)
Create a SystemFunctionLibrary
Parameters:
functionSet - determines the set of functions allowed. |
| Method Summary | |
| public Expression | bind(int nameCode, String uri, String local, Expression[] staticArgs)
Bind an extension function, given the URI and local parts of the function name,
and the list of expressions supplied as arguments. | | public 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.
a copy of this function library. | | public boolean | isAvailable(int fingerprint, String uri, String local, int arity)
Test whether a system function with a given name and arity is available. |
| FULL_XSLT | | final public static int FULL_XSLT(Code) | | |
| USE_WHEN | | final public static int USE_WHEN(Code) | | |
| XPATH_ONLY | | final public static int XPATH_ONLY(Code) | | |
| bind | | public Expression bind(int nameCode, String uri, String local, Expression[] staticArgs) throws XPathException(Code) | | Bind an extension function, given the URI and local parts of the function name,
and the list of expressions supplied as arguments. This method is called at compile
time.
Parameters:
uri - The URI of the function name
Parameters:
local - The local part of the function name
Parameters:
staticArgs - The expressions supplied statically in the function call. The intention isthat the static type of the arguments (obtainable via getItemType() and getCardinality() maybe used as part of the binding algorithm. An object representing the extension function to be called, if one is found;null if no extension function was found matching the required name and arity.
throws:
net.sf.saxon.trans.XPathException - if a function is found with the required name and arity, butthe implementation of the function cannot be loaded or used; or if an error occurswhile searching for the function; or if this function library "owns" the namespace containingthe function call, but no function was found. |
| copy | | public FunctionLibrary copy()(Code) | | 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.
a copy of this function library. This must be an instance of the original class. |
| isAvailable | | public boolean isAvailable(int fingerprint, String uri, String local, int arity)(Code) | | Test whether a system function with a given name and arity is available. This supports
the function-available() function in XSLT. This method may be called either at compile time
or at run time.
Parameters:
uri - The URI of the function name
Parameters:
local - The local part of the function name
Parameters:
arity - The number of arguments. This is set to -1 in the case of the single-argumentfunction-available() function; in this case the method should return true if there is somematching extension function, regardless of its arity. |
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