<?xml version="1.0" encoding="UTF-8"?>
	<!-- 
		Copyright (c) 2008, 2009 Oracle. All rights reserved. 
	-->
	<!--
		This program and the accompanying materials are made available under the terms
		of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
		which accompanies this distribution. The Eclipse Public License is available
		at http://www.eclipse.org/legal/epl-v10.html and the Eclipse Distribution
		License is available at http://www.eclipse.org/org/documents/edl-v10.php.
	-->
	<!--

		Contributors: dclarke - Java Persistence 2.0 - Proposed Final Draft (March 13,
		2009) Specification available from http://jcp.org/en/jsr/detail?id=317
	-->
	<!--
		Java(TM) Persistence API, Version 2.0 - EARLY ACCESS This is an implementation
		of an early-draft specification developed under the Java Community Process
		(JCP). The code is untested and presumed not to be a compatible implementation
		of JSR 317: Java(TM) Persistence API, Version 2.0. We encourage you to migrate
		to an implementation of the Java(TM) Persistence API, Version 2.0
		Specification that has been tested and verified to be compatible as soon as
		such an implementation is available, and we encourage you to retain this
		notice in any implementation of Java(TM) Persistence API, Version 2.0
		Specification that you distribute.
	-->
	<!-- persistence.xml schema -->
<xsd:schema targetNamespace="http://java.sun.com/xml/ns/persistence"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:persistence="http://java.sun.com/xml/ns/persistence"
	elementFormDefault="qualified" attributeFormDefault="unqualified" version="2.0">
	<xsd:annotation>
		<xsd:documentation>
			@(#)persistence_2_0.xsd - JPA 2.0 Proposed Final Draft - March 13, 2009
</xsd:documentation>
	</xsd:annotation>
		<xsd:annotation>
			<xsd:documentation><![CDATA[
				This is the XML Schema for the persistence configuration file.
				The file must be named "META-INF/persistence.xml" in the
				persistence archive.
	
				Persistence configuration files must indicate
				the persistence schema by using the persistence namespace:
				http://java.sun.com/xml/ns/persistence
				and indicate the version of the schema by
				using the version element as shown below:
	
				<persistence 
					xmlns="http://java.sun.com/xml/ns/persistence"
					xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
					xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
					version="2.0">
				...
				</persistence>
			]]>
		</xsd:documentation>
	</xsd:annotation>
	<xsd:simpleType name="versionType">
		<xsd:restriction base="xsd:token">
			<xsd:pattern value="[0-9]+(\.[0-9]+)*" />
		</xsd:restriction>
	</xsd:simpleType>

	<!-- **************************************************** -->

	<xsd:element name="persistence">
		<xsd:complexType>
			<xsd:sequence>

				<!-- **************************************************** -->

				<xsd:element name="persistence-unit" minOccurs="1" maxOccurs="unbounded">
					<xsd:complexType>
						<xsd:annotation>
							<xsd:documentation>
								Configuration of a persistence unit.
							</xsd:documentation>
						</xsd:annotation>
						<xsd:sequence>

							<!-- **************************************************** -->

							<xsd:element name="description" type="xsd:string" minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										Description of this persistence unit.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="provider" type="xsd:string" minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										Provider class that supplies EntityManagers for this
										persistence unit.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="jta-data-source" type="xsd:string"
								minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										The container-specific name of the JTA datasource to use.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="non-jta-data-source" type="xsd:string"
								minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										The container-specific name of a non-JTA datasource to use.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="mapping-file" type="xsd:string" minOccurs="0"
								maxOccurs="unbounded">
								<xsd:annotation>
									<xsd:documentation>
										File containing mapping information. Loaded as a resource
										by the persistence provider.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="jar-file" type="xsd:string" minOccurs="0"
								maxOccurs="unbounded">
								<xsd:annotation>
									<xsd:documentation>
										Jar file that should be scanned for entities.
										Not applicable to Java SE persistence units.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="class" type="xsd:string" minOccurs="0"
								maxOccurs="unbounded">
								<xsd:annotation>
									<xsd:documentation>
										Class to scan for annotations. It should be annotated
										with either @Entity, @Embeddable or @MappedSuperclass.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="exclude-unlisted-classes" type="xsd:boolean"
								default="false" minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										When set to true then only listed classes and jars will
										be scanned for persistent classes, otherwise the enclosing
										jar or directory will also be scanned. Not applicable to
										Java SE persistence units.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="caching" type="persistence:persistence-unit-caching-type"
								minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										Defines whether caching is enabled for the
										persistence unit if caching is supported by the
										persistence provider. When set to ALL, all entities
										will be cached. When set to NONE, no entities will
										be cached. When set to ENABLE_SELECTIVE, only entities
										specified as cacheable will be cached. When set to
										DISABLE_SELECTIVE, entities specified as not cacheable
										will not be cached.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="validation-mode"
								type="persistence:persistence-unit-validation-mode-type" minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										Specifies the validation mode to be used for the
										persistence unit.
									</xsd:documentation>
								</xsd:annotation>
							</xsd:element>

							<!-- **************************************************** -->

							<xsd:element name="properties" minOccurs="0">
								<xsd:annotation>
									<xsd:documentation>
										A list of vendor-specific properties.
									</xsd:documentation>
								</xsd:annotation>
								<xsd:complexType>
									<xsd:sequence>
										<xsd:element name="property" minOccurs="0" maxOccurs="unbounded">
											<xsd:annotation>
												<xsd:documentation>
													A name-value pair.
												</xsd:documentation>
											</xsd:annotation>
											<xsd:complexType>
												<xsd:attribute name="name" type="xsd:string" use="required" />
												<xsd:attribute name="value" type="xsd:string" use="required" />
											</xsd:complexType>
										</xsd:element>
									</xsd:sequence>
								</xsd:complexType>
							</xsd:element>
						</xsd:sequence>
						
						<!-- **************************************************** -->
						
						<xsd:attribute name="name" type="xsd:string" use="required">
							<xsd:annotation>
								<xsd:documentation>
									Name used in code to reference this persistence unit.
								</xsd:documentation>
							</xsd:annotation>
						</xsd:attribute>
						
						<!-- **************************************************** -->
						
						<xsd:attribute name="transaction-type"
							type="persistence:persistence-unit-transaction-type">
							<xsd:annotation>
								<xsd:documentation>
									Type of transactions used by EntityManagers from this
									persistence unit.
								</xsd:documentation>
							</xsd:annotation>
						</xsd:attribute>
					</xsd:complexType>
				</xsd:element>
			</xsd:sequence>
			<xsd:attribute name="version" type="persistence:versionType"
				fixed="2.0" use="required" />
		</xsd:complexType>
	</xsd:element>
	
	<!-- **************************************************** -->
	
	<xsd:simpleType name="persistence-unit-transaction-type">
		<xsd:annotation>
			<xsd:documentation>
				public enum TransactionType { JTA, RESOURCE_LOCAL };
			</xsd:documentation>
		</xsd:annotation>
		<xsd:restriction base="xsd:token">
			<xsd:enumeration value="JTA" />
			<xsd:enumeration value="RESOURCE_LOCAL" />
		</xsd:restriction>
	</xsd:simpleType>
	
	<!-- **************************************************** -->
	
	<xsd:simpleType name="persistence-unit-caching-type">
		<xsd:annotation>
			<xsd:documentation>
				public enum CachingType { ALL, NONE, ENABLE_SELECTIVE,
				DISABLE_SELECTIVE, UNSPECIFIED};
			</xsd:documentation>
		</xsd:annotation>
		<xsd:restriction base="xsd:token">
			<xsd:enumeration value="ALL" />
			<xsd:enumeration value="NONE" />
			<xsd:enumeration value="ENABLE_SELECTIVE" />
			<xsd:enumeration value="DISABLE_SELECTIVE" />
			<xsd:enumeration value="UNSPECIFIED" />
		</xsd:restriction>
	</xsd:simpleType>
	
	<!-- **************************************************** -->
	
	<xsd:simpleType name="persistence-unit-validation-mode-type">
		<xsd:annotation>
			<xsd:documentation>
				public enum ValidationMode { AUTO, CALLBACK, NONE};
			</xsd:documentation>
		</xsd:annotation>
		<xsd:restriction base="xsd:token">
			<xsd:enumeration value="AUTO" />
			<xsd:enumeration value="CALLBACK" />
			<xsd:enumeration value="NONE" />
		</xsd:restriction>
	</xsd:simpleType>
</xsd:schema>