fn:type-available

Returns true if a type with the given name is available, false otherwise.

type-available($type as xs:string) ➔ xs:boolean

Arguments
	$type	xs:string	The name of the required type, as a lexical QName
Result		xs:boolean

Namespace

http://www.w3.org/2005/xpath-functions

Links to W3C specifications

XSLT 3.0 Specification

Saxon availability

Available in XSLT 2.0 and later versions. Available in all Saxon editions. Available for all platforms.

Notes on the Saxon implementation

The Saxon implementation has a minor restriction: if the argument is known only at run-time, then the function tests whether the type exists in the run-time configuration, which does not necessarily prove that it was present in the static context.

In Saxon the type-available() function can be used to check for the availability of Java classes. For example type-available('jt:java.util.HashMap') returns true, where the prefix jt is bound to the URI http://saxon.sf.net/java-type.