<!ELEMENT property (meta*,(column|formula)*,type?)>
	<!ATTLIST property name CDATA #REQUIRED>
	<!ATTLIST property node CDATA #IMPLIED>
	<!ATTLIST property access CDATA #IMPLIED>
	<!ATTLIST property type CDATA #IMPLIED>
	<!ATTLIST property column CDATA #IMPLIED>
	<!ATTLIST property length CDATA #IMPLIED>
	<!ATTLIST property precision CDATA #IMPLIED>
	<!ATTLIST property scale CDATA #IMPLIED>
	*<!ATTLIST property not-null (true|false) #IMPLIED>*
	<!ATTLIST property unique (true|false) "false">
	<!ATTLIST property unique-key CDATA #IMPLIED>
	<!ATTLIST property index CDATA #IMPLIED>				<!-- include the columns spanned by this property in an index -->
	<!ATTLIST property update (true|false) #IMPLIED>
	<!ATTLIST property insert (true|false) #IMPLIED>
	<!ATTLIST property optimistic-lock (true|false) "true">	<!-- only supported for properties of a class (not component) -->
	<!ATTLIST property formula CDATA #IMPLIED>
	<!ATTLIST property lazy (true|false) "false">
    <!ATTLIST property generated (never|insert|always) "never">