OpenJPA
  1. OpenJPA
  2. OPENJPA-731

Bug on FetchType.EAGER when QuerySQLCache is turned on

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 1.2.0, 1.2.1
    • Fix Version/s: 1.2.1, 1.3.0
    • Component/s: None
    • Labels:
      None

      Description

      This JIRA is open on behalf of Enrico:

      OpenJPA 1.2.0 Bug on FetchType.EAGER
      Friday, September 19, 2008 12:49 AM
      From: "egoosen" <egoosen2@metropolitan.co.za>
      Add sender to Contacts
      To: users@openjpa.apache.org

      I'm experiencing a strange bug in 1.2.0, on an eager loaded one to many
      relationship.
      The first time I run the code, openJPA retrieves the parent entity and eager
      fetches the CORRECT child entities.
      The second time around, it fetches the parent entity and fetches the
      INCORRECT child entities (specifically, it fetches the child entities of the
      parent entity in the previous query).

      Here's the SQL to illustrate:
      First run:
      SELECT t0.AMDCTL_ID, t0.VRS_NBR, t0.AMDSEQ_CDE, t0.DPLORD_NBR, t0.FND_CDE,
      t0.RSL_DTE FROM EBSTATUS.TBL_AMDCTL t0 WHERE t0.FND_CDE = ?
      [params=(String) 0000001]
      SELECT t0.AMDCTL_ID, t1.AMDDES_ID, t1.VRS_NBR, t1.AMD_DES, t1.AMDCTL_ID,
      t1.EFC_DTE FROM EBSTATUS.TBL_AMDCTL t0 INNER JOIN EBSTATUS.TBL_AMDDES t1 ON
      t0.AMDCTL_ID = t1.AMDCTL_ID WHERE t0.FND_CDE = ? ORDER BY t0.AMDCTL_ID ASC
      [params=(String) 0000001]

      Second run:
      SELECT t0.AMDCTL_ID, t0.VRS_NBR, t0.AMDSEQ_CDE, t0.DPLORD_NBR, t0.FND_CDE,
      t0.RSL_DTE FROM EBSTATUS.TBL_AMDCTL t0 WHERE t0.FND_CDE = ?
      [params=(String) 0001001]
      SELECT t0.AMDCTL_ID, t1.AMDDES_ID, t1.VRS_NBR, t1.AMD_DES, t1.AMDCTL_ID,
      t1.EFC_DTE FROM EBSTATUS.TBL_AMDCTL t0 INNER JOIN EBSTATUS.TBL_AMDDES t1 ON
      t0.AMDCTL_ID = t1.AMDCTL_ID WHERE t0.FND_CDE = ? ORDER BY t0.AMDCTL_ID ASC
      [params=(String) 0000001]

      Somehow its caching the second query, even though I've turned off the
      DataCache and QueryCache.

      I've had to revert back to OpenJPA 1.1.0.

      Here's my mappings:
      TblAmdctl.java
      @OneToMany(mappedBy="tblAmdctl",fetch = FetchType.EAGER,cascade =

      { CascadeType.PERSIST,CascadeType.MERGE}

      )
      private Collection<TblAmddes> tblAmddess = new ArrayList<TblAmddes>();

      TblAmddes.java
      @ManyToOne(fetch = FetchType.LAZY,cascade =

      { CascadeType.PERSIST,CascadeType.MERGE }

      )
      @JoinColumns(

      {@JoinColumn(name = "AMDCTL_ID",referencedColumnName="AMDCTL_ID")}

      )
      @ForeignKey
      private TblAmdctl tblAmdctl;

      1. testcase.jar
        2 kB
        Fay Wang
      2. openjpa-731.txt
        13 kB
        Fay Wang

        Activity

        Hide
        Michael Dick added a comment -

        Merged change to 1.2.1.

        Show
        Michael Dick added a comment - Merged change to 1.2.1.
        Hide
        Catalina Wei added a comment -

        Fix checked in under r699156

        Show
        Catalina Wei added a comment - Fix checked in under r699156
        Hide
        Fay Wang added a comment -

        Hi Enrico, attached is the test case based on your report. However, this test case works fine. Could you attach your entity classes (TblAmdctl.java, and TblAmddes.java)? Also, do you use find operation or Query to get the parent entity? Can you provide a code snippet for your operation? Thanks!

        Show
        Fay Wang added a comment - Hi Enrico, attached is the test case based on your report. However, this test case works fine. Could you attach your entity classes (TblAmdctl.java, and TblAmddes.java)? Also, do you use find operation or Query to get the parent entity? Can you provide a code snippet for your operation? Thanks!

          People

          • Assignee:
            Fay Wang
            Reporter:
            Fay Wang
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            Dates

            • Created:
              Updated:
              Resolved:

              Development