Re: Relationship not set (NULL)

From: Borut Bolčina (borut.bolcin..mail.com)
Date: Thu Oct 14 2010 - 08:02:59 UTC

  • Next message: Borut Bolčina: "Re: Relationship not set (NULL)"

    Andrus,

    thanks for the tip. Unfortunately it does not work. Just now I replaced the
    code which fetches the two objects from shared to local datacontext with two
    queries which return the two objects in question (localMot and localTown)
    into the same datacontext.

    I commented the code which was "transfering" the two objects from shared
    data context before. This is how it looks now:

    // MapObjectType mot =
    persistenceService.findMapObjectType(MapObjectTypeEnum.STREET);
    // System.out.println("mot dc:" + mot.getDataContext());
    // // mot lives in shared datacontext so we need a copy
    // MapObjectType localMot = (MapObjectType)
    dataContext.localObject(mot.getObjectId(), null);
    // System.out.println("localMot dc:" +
    localMot.getDataContext());

                Expression e =
    ExpressionFactory.matchExp(MapObjectType.TYPE_PROPERTY,
    MapObjectTypeEnum.STREET);
                SelectQuery query = new SelectQuery(MapObjectType.class, e);
                List list = dataContext.performQuery(query);
                MapObjectType localMot = null;
                if (list.size() > 0) {
                    localMot = (MapObjectType) list.get(0);
                } else {
                    return false;
                }

                while (featureIterator.hasNext()) {
                    SimpleFeature feature = (SimpleFeature)
    featureIterator.next();

                    Integer mid =
    Integer.parseInt(feature.getAttribute("UL_MID").toString());

                    String rawname = (String) feature.getAttribute("UL_UIME");
    // prettyPrintHex(rawname.getBytes());

                    MapObject mapObject =
    dataContext.newObject(MapObject.class);
                    Street street = dataContext.newObject(Street.class);

                    street.setMid(mid);
                    street.setName(rawname);

                    Integer townMid =
    Integer.parseInt(feature.getAttribute("NA_MID").toString());
    // Town town = persistenceService.findTownByMid(townMid);
    // System.out.println("town dc:" + town.getDataContext());
    // if (town == null) {
    // logger.error("Street with mid {} has no town
    associated.", street.getMid());
    // return false; // TODO tell why (each street must have
    a town)
    // }
    // // town lives in shared datacontext so we need a copy
    // Town localTown = (Town)
    dataContext.localObject(town.getObjectId(), null);
    // System.out.println("localTown dc:" +
    localTown.getDataContext());
    // logger.debug("localTown: " + localTown);

                    Expression e1 =
    ExpressionFactory.matchExp(Town.MID_PROPERTY, townMid);
                    SelectQuery query1 = new SelectQuery(Town.class, e1);
                    List list1 = dataContext.performQuery(query1);
                    Town localTown = null;
                    if (list1.size() > 0) {
                        localTown = (Town) list1.get(0);
                    } else {
                        return false;
                    }

                    *street.setTown(localTown);*
                    //localTown.addToStreets(street);

                    mapObject.setStreet(street);
                    mapObject.setMapObjectType(localMot);

                    counter++;

                    printDataContext(dataContext);

                    logger.debug("Will import Street: " + street);

                    dataContext.commitChanges();
                }

    But the* town_mid is still NULL* while the other relationship
    (mapObject.setStreet(street)) is set correctly.

    [2010/10/14 09:57:16.327] INFO
    [AppModule.ImportService:getShapeFileFromClasspath]: Importing Street from
    jar:file:/C:/Users/borutb/.m2/repository/si/planet9/maps-geodata/0.0.2-SNAPSHOT/maps-geodata-0.0.2-SNAPSHOT.jar!/geodata/UL.shp
    [2010/10/14 09:57:16.361] DEBUG
    [AppModule.ImportService:getFeatureIteratorForShapeResource]: Setting Shape
    file encoding: windows-1250
    [2010/10/14 09:57:16.586] INFO [access.QueryLogger:logQueryStart]: --- will
    run 1 query.
    [2010/10/14 09:57:16.589] INFO [access.QueryLogger:logBeginTransaction]:
    --- transaction started.
    [2010/10/14 09:57:16.590] INFO [access.QueryLogger:logQuery]: SELECT t0.id,
    t0.type FROM maps.map_object_type t0 WHERE t0.type = ? [bind:
    1->type:STREET=3]
    [2010/10/14 09:57:16.593] INFO [access.QueryLogger:logSelectCount]: ===
    returned 1 row. - took 3 ms.
    [2010/10/14 09:57:16.594] INFO [access.QueryLogger:logCommitTransaction]:
    +++ transaction committed.
    [2010/10/14 09:57:16.619] INFO [access.QueryLogger:logQueryStart]: --- will
    run 1 query.
    [2010/10/14 09:57:16.622] INFO [access.QueryLogger:logBeginTransaction]:
    --- transaction started.
    [2010/10/14 09:57:16.623] INFO [access.QueryLogger:logQuery]: SELECT
    t0.name, t0.id, t0.mid, t0.label_y, t0.label_x FROM maps.town t0 WHERE
    t0.mid = ? [bind: 1->mid:10083931]
    [2010/10/14 09:57:16.625] INFO [access.QueryLogger:logSelectCount]: ===
    returned 1 row. - took 3 ms.
    [2010/10/14 09:57:16.627] INFO [access.QueryLogger:logCommitTransaction]:
    +++ transaction committed.
    NEW objects
    {<ObjectId:Street, TEMP:000001BE35CB1188>; new; [name=>Ulica Milana
    Klemenčiča; mapObjects=>(..); town=>{<ObjectId:Town, id=446>};
    mid=>19568962; houseNumbers=>(..)]}
    {<ObjectId:MapObject, TEMP:000000BE35C71188>; new;
    [mapObjectType=>{<ObjectId:MapObjectType, id=4>}; street=>{<ObjectId:Street,
    TEMP:000001BE35CB1188>}]}
    DELETED objects
    MODIFIED objects
    {<ObjectId:MapObjectType, id=4>; modified; [mapObjects=>(..); type=>STREET]}
    {<ObjectId:Town, id=446>; modified; [name=>Ajdovščina; mapObjects=>?;
    streets=>(..); mid=>10083931; labelY=>85131.71; houseNumbers=>?;
    labelX=>416031.93]}
    UNCOMMITED objects
    {<ObjectId:MapObjectType, id=4>; modified; [mapObjects=>(..); type=>STREET]}
    {<ObjectId:Town, id=446>; modified; [name=>Ajdovščina; mapObjects=>?;
    streets=>(..); mid=>10083931; labelY=>85131.71; houseNumbers=>?;
    labelX=>416031.93]}
    {<ObjectId:Street, TEMP:000001BE35CB1188>; new; [name=>Ulica Milana
    Klemenčiča; mapObjects=>(..); town=>{<ObjectId:Town, id=446>};
    mid=>19568962; houseNumbers=>(..)]}
    {<ObjectId:MapObject, TEMP:000000BE35C71188>; new;
    [mapObjectType=>{<ObjectId:MapObjectType, id=4>}; street=>{<ObjectId:Street,
    TEMP:000001BE35CB1188>}]}
    [2010/10/14 09:57:16.633] DEBUG [AppModule.ImportService:importStreetsData]:
    Will import Street: {<ObjectId:Street, TEMP:000001BE35CB1188>; new;
    [name=>Ulica Milana Klemenčiča; mapObjects=>(..); town=>{<ObjectId:Town,
    id=446>}; mid=>19568962; houseNumbers=>(..)]}
    [2010/10/14 09:57:21.709] INFO [access.QueryLogger:logQueryStart]: --- will
    run 2 queries.
    [2010/10/14 09:57:21.718] INFO [access.QueryLogger:logBeginTransaction]:
    --- transaction started.
    [2010/10/14 09:57:21.734] INFO [access.QueryLogger:logQuery]: INSERT INTO
    maps.street (mid, name, town_mid) VALUES (?, ?, ?)
    [2010/10/14 09:57:21.742] INFO [access.QueryLogger:logQueryParameters]:
    [bind: 1->mid:19568962, 2->name:'Ulica Milana Klemenčiča', *3->town_mid:NULL
    *]
    [2010/10/14 09:57:21.756] INFO [access.QueryLogger:logGeneratedKey]:
    Generated PK: street.id = 1
    [2010/10/14 09:57:21.763] INFO [access.QueryLogger:logUpdateCount]: ===
    updated 1 row.
    [2010/10/14 09:57:21.770] INFO [access.QueryLogger:logQuery]: INSERT INTO
    maps.map_object (company_id, house_number_id, map_object_type_id, poi_id,
    post_office_id, street_id, town_id) VALUES (?, ?, ?, ?, ?, ?, ?)
    [2010/10/14 09:57:21.778] INFO [access.QueryLogger:logQueryParameters]:
    [bind: 1->company_id:NULL, 2->house_number_id:NULL, *3->map_object_type_id:4
    *, 4->poi_id:NULL, 5->post_office_id:NULL, 6->street_id:1, 7->town_id:NULL]
    [2010/10/14 09:57:21.787] INFO [access.QueryLogger:logGeneratedKey]:
    Generated PK: map_object.id = 15997
    [2010/10/14 09:57:21.794] INFO [access.QueryLogger:logUpdateCount]: ===
    updated 1 row.
    [2010/10/14 09:57:21.831] INFO [access.QueryLogger:logCommitTransaction]:
    +++ transaction committed.

    If this is a bug, what would you recomend?

    Thanks,
    Borut

    2010/10/13 Andrus Adamchik <andru..bjectstyle.org>

    > Hi Borut,
    >
    > On Oct 13, 2010, at 12:02 PM, Borut Bolčina wrote:
    >
    > > MapObjectType localMot = (MapObjectType)
    > > dataContext.localObject(mot.getObjectId(), mot);
    >
    > Not sure if there's anything else involved, but the use of 'localObject' is
    > suspect. Try using null as the second argument:
    >
    > MapObjectType localMot = (MapObjectType)
    > dataContext.localObject(mot.getObjectId(), null);
    >
    > This is a piece of less intuitive API in Cayenne. I really wish to replace
    > it with something more explicit...
    >
    > Andrus
    >
    >



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