Interface XQueryFunctionBinder

All Superinterfaces:
FunctionLibrary, Serializable
All Known Implementing Classes:
FunctionLibraryList, ImportedFunctionLibrary, XQueryFunctionLibrary
public interface XQueryFunctionBinder extends FunctionLibrary
XQueryFunctionBinder is an extension of the FunctionLibrary interface used for function libraries that contain user-written XQuery functions. It provides a method that allows the XQueryFunction with a given name and arity to be located.

  • Method Details

    • getDeclaration

      XQueryFunction getDeclaration(StructuredQName functionName, Expression[] staticArgs)
      Get the function declaration corresponding to a given function name and arity
      Parameters:
      functionName - the name of the function as a QName
      staticArgs - the expressions supplied as arguments in the function call (typically, we only need to know the number of arguments)
      Returns:
      the XQueryFunction if there is one, or null if not.