77 lines
2.8 KiB
XML
77 lines
2.8 KiB
XML
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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~ Copyright The WildFly Authors
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~ SPDX-License-Identifier: Apache-2.0
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-->
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
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targetNamespace="urn:jboss:jboss-jpa:1.0"
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xmlns="urn:jboss:jboss-jpa:1.0"
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elementFormDefault="qualified"
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attributeFormDefault="unqualified"
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version="1.0">
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<!-- jboss-jpa may be in a jboss-all.xml deployment descriptor to choose between
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deep/shallow extended persistence inheritance.
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-->
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<!-- example of using shallow inheritance
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<jboss>
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<jboss-jpa xmlns="http://www.jboss.com/xml/ns/javaee">
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<extended-persistence inheritance="SHALLOW"/>
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</jboss-jpa>
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</jboss>
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-->
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<!-- example of using deep inheritance
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<jboss>
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<jboss-jpa xmlns="http://www.jboss.com/xml/ns/javaee">
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<extended-persistence inheritance="DEEP"/>
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</jboss-jpa>
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</jboss>
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-->
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<!-- Root element -->
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<xs:element name="jboss-jpa" type="jboss-jpa-type"/>
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<xs:complexType name="jboss-jpa-type">
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<xs:all>
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<xs:element name="extended-persistence" type="extended-persistence-type" minOccurs="0" maxOccurs="1"/>
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</xs:all>
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</xs:complexType>
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<xs:complexType name="extended-persistence-type">
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<xs:attribute name="inheritance" type="extended-persistence-inheritance-type" default="DEEP" use="optional">
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<xs:annotation>
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<xs:documentation>
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<![CDATA[[
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Controls how JPA extended persistence context (XPC) inheritance is performed.
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XPC inheritance only occurs between stateful session beans used within the same EJB3 thread.
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This might be a stateful bean that injects other stateful beans (directly or via JNDI lookup).
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With DEEP extended persistence inheritance, the extended persistence context is always shared at
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the top most stateful bean level. Even if the top level bean does not have an extended persistence
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context, sub-beans (siblings) will share the extended persistence context (requiring fewer copies of
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entities to be loaded).
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With SHALLOW extended persistence inheritance, the extended persistence context is only shared between
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a stateful bean and its parent bean. This means that sibling stateful beans with the same parent bean,
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will have isolated persistence contexts (assuming the parent bean doesn't have an extended persistence
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context).
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]]>
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:complexType>
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<xs:simpleType name="extended-persistence-inheritance-type">
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<xs:restriction base="xs:token">
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<xs:enumeration value="DEEP" />
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<xs:enumeration value="SHALLOW" />
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</xs:restriction>
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</xs:simpleType>
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</xs:schema>
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