Re: Unique persistent object and caching issue

From: Francois Eyl (fey..maeur.com)
Date: Thu Jul 31 2008 - 17:43:30 EDT

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    Hi guys,

    I'm working with Laurent on the same project and we have a strange
    behavior with this architecture.

    Lets say, we have our MASTER and MASTER_AUX tables, also the right
    relationship between them.

    We've set the database up as read only to simulate a database write error.

    When we ask cayenne to update record in MASTER and insert some in
    MASTER_AUX an error occurs (because of read only db), which is normal.
    Here we ask for a rollback on the data context. MASTER's record get
    rolled back and new MASTER_AUX objects get transient state (which is
    normal).

    But the strange thing is the following, when we ask to MASTER its
    MASTER_AUX objects (by the relationship), cayenne returns all MASTER_AUX
    objects even the transients.

    This the problem with this behavior cause that on the next commit all
    transient MASTER_AUX object wont be committed to the database.

    Is it a normal behavior ?

    BTW - we are using cayenne 3.0M4

    Thanks

    Francois

    Laurent Marchal wrote:
    > Nice this solve the problem !
    >
    > Sorry to bother you with that, and thanks a lot.
    > It's a little bit complicated to understand what do Cayenne
    > internally, but luckylly you were there.
    >
    > Laurent.
    >
    > Andrus Adamchik wrote:
    >> Could you check the "To Dep PK" checkbox for this relationship and
    >> see if that makes a difference.
    >>
    >> Andrus
    >>
    >>
    >> On Jul 15, 2008, at 6:43 PM, Laurent Marchal wrote:
    >>> <db-relationship name="toMasterScheduleAux" source="SNAME"
    >>> target="SNAME_AUX" toMany="true">
    >>> <db-attribute-pair source="SKDID" target="SKDID"/>
    >>> </db-relationship>
    >>
    >>
    >>
    >>
    >
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