taverna-xml-schemas/src/main/resources/ApplicationPlugin.xsd

<?xml version="1.0"?>
<xs:schema xmlns="http://ns.taverna.org.uk/2013/application/plugin"
	xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:versions="http://ns.taverna.org.uk/2013/application/versions"
	xmlns:ap="http://ns.taverna.org.uk/2013/application/profile"
	xmlns:plugin="http://ns.taverna.org.uk/2013/application/plugin"
	xmlns:jxb="http://java.sun.com/xml/ns/jaxb" jxb:version="1.0"
	targetNamespace="http://ns.taverna.org.uk/2013/application/plugin"
	elementFormDefault="qualified">

	<xs:annotation>
		<xs:appinfo>
			<jxb:schemaBindings>
				<jxb:package name="uk.org.taverna.commons.plugin.xml.jaxb" />
			</jxb:schemaBindings>
		</xs:appinfo>
	</xs:annotation>

	<xs:import namespace="http://ns.taverna.org.uk/2013/application/versions"
		schemaLocation="ApplicationVersions.xsd" />

	<xs:import namespace="http://ns.taverna.org.uk/2013/application/profile"
		schemaLocation="ApplicationProfile.xsd" />

	<xs:element name="pluginInfo">
		<xs:complexType>
			<xs:sequence>
				<xs:element name="id" type="xs:string" />
				<xs:element name="name" type="xs:string" />
				<xs:element name="description" type="xs:string" />
				<xs:element name="organization" type="xs:string" />
				<xs:element name="version" type="versions:semanticVersion" />
				<xs:element name="bundle" type="ap:bundleInfo" minOccurs="0" maxOccurs="unbounded" />
			</xs:sequence>
		</xs:complexType>
	</xs:element>

	<xs:complexType name="pluginVersions">
		<xs:complexContent>
			<xs:extension base="versions:versions">
				<xs:sequence>
					<xs:element name="organization" type="xs:string" />
					<xs:element name="pluginSiteUrl" type="xs:string" minOccurs="0" />
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>

	<xs:element name="plugins">
		<xs:complexType>
			<xs:sequence>
				<xs:element name="plugin" type="pluginVersions"
					minOccurs="1" maxOccurs="unbounded">
					<xs:unique name="versionUnique">
						<xs:selector
							xpath="versions:previousVersion/versions:version|versions:latestVersion/versions:version" />
						<xs:field xpath="." />
					</xs:unique>
				</xs:element>
			</xs:sequence>
		</xs:complexType>
		<xs:unique name="versionsIdUnique">
			<xs:selector xpath="plugin:versions/versions:id" />
			<xs:field xpath="." />
		</xs:unique>
	</xs:element>

</xs:schema>