javaee:descriptionType 

The description type is used by a description element to
	provide text describing the parent element.  The elements
	that use this type should include any information that the
	Deployment Component's Deployment File file producer wants
	to provide to the consumer of the Deployment Component's
	Deployment File (i.e., to the Deployer). Typically, the
	tools used by such a Deployment File consumer will display
	the description when processing the parent element that
	contains the description.

	The lang attribute defines the language that the
	description is provided in. The default value is "en" (English).

Complex Type Information

Model

Attributes

QName Type Fixed Default Use Inheritable Annotation
id xsd:ID optional
xml:lang union of(xs:language, restriction of xs:string) optional 
Attempting to install the relevant ISO 2- and 3-letter
         codes as the enumerated possible values is probably never
         going to be a realistic possibility.  See
         RFC 3066 at http://www.ietf.org/rfc/rfc3066.txt and the IANA registry
         at http://www.iana.org/assignments/lang-tag-apps.htm for
         further information.

         The union allows for the 'un-declaration' of xml:lang with
         the empty string.

Used By

Elements javaee:descriptionGroup/javaee:description, javaee:ejb-local-refType/javaee:description, javaee:ejb-refType/javaee:description, javaee:env-entryType/javaee:description, javaee:message-destination-refType/javaee:description, javaee:param-valueType/javaee:description, javaee:persistence-context-refType/javaee:description, javaee:persistence-unit-refType/javaee:description, javaee:resource-env-refType/javaee:description, javaee:resource-refType/javaee:description, javaee:run-asType/javaee:description, javaee:security-role-refType/javaee:description, javaee:security-roleType/javaee:description

Source 

<xsd:complexType name="descriptionType">
  <xsd:annotation>
    <xsd:documentation>The description type is used by a description element to provide text describing the parent element. The elements that use this type should include any information that the Deployment Component's Deployment File file producer wants to provide to the consumer of the Deployment Component's Deployment File (i.e., to the Deployer). Typically, the tools used by such a Deployment File consumer will display the description when processing the parent element that contains the description. The lang attribute defines the language that the description is provided in. The default value is "en" (English).</xsd:documentation>
  </xsd:annotation>
  <xsd:simpleContent>
    <xsd:extension base="javaee:xsdStringType">
      <xsd:attribute ref="xml:lang"/>
    </xsd:extension>
  </xsd:simpleContent>
</xsd:complexType>