Skip to content

objectType LanguageFeatureList

An enumeration of non-standard or non-mandatory features of a specific type implemented by the language. A feature type is a language-dependent concept like 'user defined function', 'geometry support', or possibly 'units supported'. A featureList gives all features of a given type applicable for the service. Multiple featureLists are possible. All feature in a given list are of the same type. This type is declared using the mandatory type attribute, the value of which will typically be an IVORN. To see values defined in TAPRegExt, retrieve the ivo://ivoa.net/std/TAPRegExt resource record and look for keys starting with 'features-'.

LanguageFeatureListivoa:anyURI typeLanguageFeatureLanguagefeature0..*languageFeatures0..*

Members

name type mult description
feature LanguageFeature 0 or more A language feature of the type given by this element's type attribute.
type ivoa:anyURI The type of the features given here. This is in general an IVORN. TAPRegExt itself gives IVORNs for defining user defined functions and geometry support.

Containment

This is contained by Language