This abstract element serves as the head of a substitution group which maycontain any elements whose content model is derived from gml:AbstractFeatureType. This maybe used as a variable in the construction of content models. gml:AbstractFeature may bethought of as “anything that is a GML feature” and may be used to define variables ortemplates in which the value of a GML property is “any feature”. This occurs in particularin a GML feature collection where the feature member properties contain one or multiplecopies of gml:AbstractFeature respectively.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
Source
<element name="AbstractFeature" type="gml:AbstractFeatureType" abstract="true" substitutionGroup="gml:AbstractGML"><annotation><documentation>This abstract element serves as the head of a substitution group which may contain any elements whose content model is derived from gml:AbstractFeatureType. This may be used as a variable in the construction of content models. gml:AbstractFeature may be thought of as “anything that is a GML feature” and may be used to define variables or templates in which the value of a GML property is “any feature”. This occurs in particular in a GML feature collection where the feature member properties contain one or multiple copies of gml:AbstractFeature respectively.</documentation></annotation></element>