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04.01.2005 at 08:44AM PST, ID: 21373069
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7.8

Hibernate Eager Fetching

Asked by HycelTaylor in Java Programming Language, J2EE, J2EE Frameworks

Tags: , ,

In hibernate I have a many-to-one relationship defined for CreditCardVO to CreditCardTypeVO.  In essence, I need a credit card type each time I retrieve a credit card.  But, I don't need it lazily.  I need it immediately so that when I close the hibernate transaction and pass the CreditCardVO across multiple tiers, the CreditCardVO has its CreditCardTypeVO in hand.  Well, it’s not working.  I keep getting the following message:

javax.servlet.ServletException: javax.servlet.ServletException: javax.servlet.jsp.JspException: org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed
      javax.faces.webapp.FacesServlet.service(FacesServlet.java:125)

In the CreditCardVO hbm.xml file, I've tried to configure the many-to-one relationship to CreditCardTypeVO so that the fetch is always immediate.  I must not be specifying something correctly.  Below is what I specified:

<many-to-one
      name="creditCardType"
      class="com.tss.testadmin.dataAccess.valueObjects.CreditCardTypeVO"
      column="credit_card_type_id"
      not-null="true"
      fetch="join"
      lazy="false"
      outer-join="true"/>

I believe it's still trying to apply lazy fetching to the CreditCardTypeVO.  How do I get it to always do eager fetching?

Thanks in advance for any help concerning this issue.
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About this solution

Zones: Java Programming Language, J2EE, J2EE Frameworks
Tags: hibernate, eager, fetching
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Solution Provided By: dejanpazin
Participating Experts: 2
Solution Grade: A
 
 
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