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<?xml version="1.0" encoding="UTF-8"?>
<!-- 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  1.0  October 1 2009
    </xsd:documentation>
  </xsd:annotation>

  <xsd:annotation>
    <xsd:documentation>

  Copyright (c) 2008, 2009 Sun Microsystems. 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:
      Linda DeMichiel - Java Persistence 2.0, Version 2.0 (October 1, 2009)
      Specification available from http://jcp.org/en/jsr/detail?id=317
 
    </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 is to be scanned for managed classes. 

                  </xsd:documentation>
                </xsd:annotation>
              </xsd:element>

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

              <xsd:element name="class" type="xsd:string" 
                           minOccurs="0" maxOccurs="unbounded">
                <xsd:annotation>
                  <xsd:documentation>

                    Managed class to be included in the persistence unit and
                    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="true" 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="shared-cache-mode" 
                           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. When not specified or when set to
                    UNSPECIFIED, provider defaults may apply.

                  </xsd:documentation>
                </xsd:annotation>
              </xsd:element>

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

              <xsd:element name="validation-mode" 
                           type="persistence:persistence-unit-validation-mode-type" 
                           minOccurs="0">
                <xsd:annotation>
                  <xsd:documentation>

                    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 standard and vendor-specific properties 
                    and hints.

                  </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 PersistenceUnitTransactionType {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 SharedCacheMode { 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>
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