<xs:element name="port" type="port.type" block="#all">
<xs:annotation>
<xs:documentation source="http://graphml.graphdrawing.org/" xml:lang="en">Description: Nodes may be structured by ports; thus edges are not only attached to a node but to a certain port in this node. Occurence: <node>, <port>.</xs:documentation>
</xs:annotation>
<xs:unique name="port_data_key_unique">
<xs:annotation>
<xs:documentation source="http://graphml.graphdrawing.org/" xml:lang="en">Ensures: uniqueness of the key attributes of <data> children of this <port> element.</xs:documentation>
</xs:annotation>
<xs:selector xpath="./g:data"/>
<xs:field xpath="@key"/>
<xs:field xpath="@time"/>
</xs:unique>
</xs:element> |