Question

我有一个使用Gemini JPA（v1.2.0）和EclipseLink（v2.5.2）的RCP 3.7应用程序（Equinox OSGI）。我无法在Manifest.MF中获得Require-Bundle的正确组合来读取persistence.xml。有没有人有他们可以分享的工作MANIFEST.MF？

我发现的所有其他问题都提到了旧版本的EclipseLink和不在发行版中的Eclipselink.jar。我在Gemini JPA上阅读了文档，但没有找到它。

基于其他帖子我也

在startLevel = 3时将org.eclipse.gemini.jpa添加到autoStart = true
将我的包含persistence.xml的软件包添加到默认情况下的autoStart = true
添加了VM参数-DREFRESH_BUNDLES = false

感谢您抽出宝贵时间阅读我的问题！

MANIFEST.MF

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Meta-Persistence: META-INF/persistence.xml
Bundle-Blueprint: OSGI-INF/blueprint/*.xml
Bundle-Name: Local
Bundle-SymbolicName: com.vogelware.simple.local
Bundle-Version: 0.1.0.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.7
Import-Package: com.vogelware.simple.model,
 com.vogelware.simple.service,
 javax.persistence;version="2.1.0",
 org.osgi.service.component;version="1.1.0"
Require-Bundle: org.eclipse.gemini.jpa;bundle-version="1.2.0",
 org.eclipse.persistence.antlr;bundle-version="3.2.0",
 org.eclipse.persistence.asm;bundle-version="3.3.1",
 org.eclipse.persistence.core;bundle-version="2.5.2",
 org.eclipse.persistence.jpa;bundle-version="2.5.2",
 org.apache.derby;bundle-version="10.8.2"
Service-Component: OSGI-INF/PersonEntityService-local.xml
Bundle-ActivationPolicy: lazy

的persistence.xml

<?xml version="1.0" encoding="UTF-8" ?>
<persistence version="1.0" 
    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_1_0.xsd"> 

    <persistence-unit name="person" transaction-type="RESOURCE_LOCAL">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

        <class>com.vogelware.simple.Person</class>

        <properties>
            <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver" />
            <property name="javax.persistence.jdbc.url" value="jdbc:derby:D:\dev\projects\EASA-DB\motordb" />
        </properties>
    </persistence-unit>
</persistence>

Answer 1

他们有几个问题需要解决。

无数据库提供程序 - 将Gemini DBAccess添加到项目
加载了错误的PersistenceProviderResolver - 正在加载静态内部类而不是OSGiProviderResolver。由＃4解决。
DS和JPA中的循环导致多个异常 - 添加了VM参数-DREFRESH_BUNDLES = false
需要将Bundles配置为autoStart =“true”startLevel =“3”
- javax.persistence
- org.apache.derby
- org.eclipse.gemini.dbaccess.derby
- org.eclipse.gemini.dbutil
- org.eclipse.gemini.jpa
- org.eclipse.gemini.blueprint（如果使用）

Answer 2

我想纠正几点：

没有org.eclipse.gemini.dbutil，而是org.eclipse.gemini.dbaccess.util。
Eclipse Gemini JPA的最新版本是1.2.0.M1，因此org.eclipse.gemini.jpa;bundle-version="1.2.0"对我不起作用。

这个 MANIFEST.MF 适合我：

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: org.openhab.binding.mybinding;singleton:=true
Bundle-Name: org.openhab.binding.mybinding
Bundle-Version: 1.0.0.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.8
Meta-Persistence: META-INF/persistence.xml
Import-Package: com.fasterxml.jackson.annotation,
 com.fasterxml.jackson.core,
 com.fasterxml.jackson.databind,
 javax.persistence,
 javax.servlet.http,
 javax.ws.rs.client,
 javax.ws.rs.core,
 org.eclipse.jetty.io,
 org.eclipse.jetty.server,
 org.eclipse.jetty.server.handler,
 org.eclipse.jetty.servlet,
 org.eclipse.jetty.util.component,
 org.eclipse.jetty.websocket.api,
 org.eclipse.jetty.websocket.api.annotations,
 org.eclipse.jetty.websocket.client,
 org.eclipse.jetty.websocket.common,
 org.eclipse.jetty.websocket.servlet,
 org.eclipse.paho.client.mqttv3,
 org.eclipse.paho.client.mqttv3.persist,
 org.eclipse.smarthome.config.core,
 org.eclipse.smarthome.core.library.types,
 org.eclipse.smarthome.core.thing,
 org.eclipse.smarthome.core.thing.binding,
 org.eclipse.smarthome.core.types,
 org.glassfish.hk2.osgiresourcelocator,
 org.glassfish.jersey,
 org.glassfish.jersey.client,
 org.glassfish.jersey.jackson,
 org.slf4j,
 org.testng,
 org.testng.annotations,
 com.google.common.collect
Require-Bundle: org.eclipse.gemini.jpa,
 org.eclipse.persistence.antlr;bundle-version="3.2.0",
 org.eclipse.persistence.asm;bundle-version="3.3.1",
 org.eclipse.persistence.core;bundle-version="2.5.2",
 org.eclipse.persistence.jpa;bundle-version="2.5.2",
 org.apache.derby;bundle-version="10.8.2"
Service-Component: OSGI-INF/*.xml

这是我的 persistence.xml ：

    <persistence-unit name="supervisor-state" transaction-type="RESOURCE_LOCAL">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

        <class>com.gadgetkeeper.hub.supervisor.model.ActivationInfo</class>
        <class>com.gadgetkeeper.hub.supervisor.model.SupervisorState</class>
        <class>com.gadgetkeeper.hub.supervisor.model.Version</class>

        <properties>
            <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/>
            <property name="javax.persistence.jdbc.url"
                      value="jdbc:derby:db/supervisordb;create=true"/>
            <property name="javax.persistence.jdbc.user" value="supervisor"/>
            <property name="javax.persistence.jdbc.password" value="supervisor"/>

            <!-- EclipseLink should create the database schema automatically -->
            <property name="eclipselink.ddl-generation" value="create-tables"/>
            <property name="eclipselink.ddl-generation.output-mode"
                      value="database"/>
        </properties>
    </persistence-unit>

OSGI中的EclipseLink错误没有名为EntityManager的持久性提供程序

2 个答案: