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Shared cache on multi base using same classes [message #780558]

Wed, 18 January 2012 15:53

Robin CAMUS

Messages: 8
Registered: January 2012

Junior Member

Hello,
I'm using eclipselink to access multiple bases using the same tables and i want to know if i can simply use a persistence.xml like this :

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" ... (cannot use links :X)>


<persistence-unit name="DATA_M" transaction-type="JTA">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <jta-data-source>jdbc/DATA_M</jta-data-source>
          <class>onp.modele.adli.ListeDiffusion</class>
          <class>onp.modele.commun.Agent</class>
          <class>onp.modele.commun.JourFerie</class>
          <class>onp.modele.adse.SecteurRegle</class>
          ...
    <properties>
      <property name="eclipselink.weaving.internal" value="false"/>
    </properties>
  </persistence-unit>

  <persistence-unit name="DATA_X" transaction-type="JTA">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <jta-data-source>jdbc/DATA_M</jta-data-source>
          <class>onp.modele.adli.ListeDiffusion</class>
          <class>onp.modele.commun.Agent</class>
          <class>onp.modele.commun.JourFerie</class>
          <class>onp.modele.adse.SecteurRegle</class>
          ...
    <properties>
      <property name="eclipselink.weaving.internal" value="false"/>
    </properties>
  </persistence-unit>
  ... (for 20 different persistence units)

Do eclipselink use different cache for each datasource?
Or will i ll be experiencing some cache issue (2 onp.modele.commun.Agent can have the same id key but different values if they re not in the same base).
Or do i need to specify additionals properties so i can use it like this.

Thx in advance.

Other stuff :
Using
weblogic 10.3.4
eclipselink 2.1.2

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