Annotations as structured child elements

Annotations specified as structured children elements of an element or attribute declaration must be specified in the schema document within the <xs:annotation><xs:appinfo></xs:appinfo></xs:annotation> hierarchy defined by XML Schema.

For example, the db2-xdb:rowSet and db2-xdb:column annotations can be specified as children elements (they are children of the <db2-xdb:rowSetMapping> annotation) as follows:

<xs:element name="isbn" type="xs:string">
  <xs:annotation>
    <xs:appinfo>
      <db2-xdb:rowSetMapping>
        <db2-xdb:rowSet>TEXTBOOKS</db2-xdb:rowSet>
        <db2-xdb:column>ISBN</db2-xdb:column>
      </db2-xdb:rowSetMapping>
    </xs:appinfo>
  </xs:annotation>
</xs:element>

Specifying the db2-xdb:rowSet and db2-xdb:column annotations as children elements is equivalent to specifying these annotations as attributes. While more verbose than the method of specifying annotations as attributes, specifying annotations as children elements is required when you need to specify more than one <db2-xdb:rowSetMapping> for an element or attribute; that is, when you need to specify multiple mappings on the same element or attribute declaration.