OSGI事务处理

Upon detecting a new OSGi service supporting the javax.sql.XADataSource interface, the activator automatically creates a new XADataSourceEnlistingWrapper object, which wraps the original XA data source, effectively acting as a data source proxy. The XADataSourceEnlistingWrapper object also obtains a reference to the JTA transaction manager service (from the org.apache.aries.transaction.manager bundle). Finally, the activator exports the XADataSourceEnlistingWrapper object with the javax.sql.DataSource interface.

<bean id="xxxBean" class="xxxx">
        
        <tx:transaction  method="*" value="Required" />
      .....
    </bean>

 <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0" 
           
           xmlns:tx="http://aries.apache.org/xmlns/transactions/v1.0.0"    ...> 

<bean id="xaDataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource">
        <property name="serverName" value="${jta.atomikos.dbServerName}" />
        <property name="portNumber" value="${jta.atomikos.dbServerPort}" />
       <!--  <property name="selectMethod" value="cursor" /> -->
        <property name="databaseName" value="${jta.atomikos.dbName}" />
        <property name="user" value="${jta.atomikos.dbUser}" />
        <property name="password" value="${jta.atomikos.dbPassword}" />
        <property name="autoReconnect" value="true"/>
    </bean>

<!--发布XA数据源成OSGI服务,Aries Transaction才会自动enlist这个数据源 -->
    <service  ref="xaDataSource" interface="javax.sql.XADataSource">
  <service-properties>
<entry key="osgi.jndi.service.name" value="jdbc/mySqlXADS"/>
</service-properties>
  </service>

<tx:transaction method="*" value="Required"/>