XTCE12 — LongDescriptionType as a complexType is unnecessary

In the schema refactoring for 1.2, the LongDescription element content got converted to a complexType containing just a string. This should be a simpleType.

Convert complexType for LongDescriptionType to a simpleType

Propose to simplify LongDescriptionType since it does not add any attributes to the description string that would justify a more complex generated interface. Maintaining it as a separate simpleType is useful for creating a profile that limits the length or otherwise restricts the string content, but the string can be retrieved from JAXB-generated code with the method getLongDescription() of the DescriptionType class.

Change the complexType LongDescriptionType to a simpleType based on string as shown below:

<simpleType name="LongDescriptionType">
<annotation>
<documentation xml:lang="en">The Long Description is intended to be used for explanatory descriptions of the object and may include HTML markup. Long Descriptions are of unbounded length</documentation>
</annotation>
<restriction base="string"/>
</simpleType>