RE: Retrieving via auto-generated keys

From: Gentry, Michael (michael_gentr..anniemae.com)
Date: Fri May 28 2004 - 11:44:13 EDT

  • Next message: Eric Schneider: "Re: Retrieving via auto-generated keys"

    I was actually thinking of doing something similar to the globally
    unique ID in WO, but I couldn't find an *easy* way of getting the
    process ID (the ways I found involved C code + JNI). If you could
    generate primary keys that way, you wouldn't need to hit the DB and
    they'd be unique and known up-front. Does anyone know how to do that?

    Thanks,

    /dev/mrg

    -----Original Message-----
    From: Mike Kienenberger [mailto:mkienen..laska.net]
    Sent: Friday, May 28, 2004 11:36 AM
    To: mr..79.net
    Cc: cayenne-use..bjectstyle.org
    Subject: Re: Retrieving via auto-generated keys

    This is the method I use to retrieve by primary key. I consider it
    cleaner
    than Eric's method since the idea of creating ObjectIds from application

    code seems wrong to me. (I keep expecting ObjectID to change to some
    12-byte binary value like WebObject uses for clustering support.)

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