XQueryFunctionBinder

All Superinterfaces:

FunctionLibrary

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 Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`bindUnboundFunctionCall(UserFunctionCall call, java.util.List<java.lang.String> reasons)`	Bind a function call using this XQuery function library, in the situation where it was not possible to bind it earlier, typically because it was encountered as a forwards reference.
`XQueryFunction`	`getDeclaration(StructuredQName functionName, int staticArgs)`	Get the function declaration corresponding to a given function name and arity

Methods inherited from interface net.sf.saxon.functions.FunctionLibrary
bind, copy, getFunctionItem, isAvailable, setConfiguration

- Method Detail
  - getDeclaration
```
XQueryFunction getDeclaration(StructuredQName functionName,
                              int 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 number of expressions supplied as arguments in the function call
    
    Returns:
    
    the XQueryFunction if there is one, or null if not.
  - bindUnboundFunctionCall
```
boolean bindUnboundFunctionCall(UserFunctionCall call,
                                java.util.List<java.lang.String> reasons)
```
    Bind a function call using this XQuery function library, in the situation where it was not possible to bind it earlier, typically because it was encountered as a forwards reference.
    
    Parameters:
    
    call - The unbound function call, which will include a non-null UnboundFunctionCallDetails
    
    reasons - a list which can be populated with messages indicating why binding failed
    
    Returns:
    
    true if the function call is now bound; false if it remains unbound.