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From Borut Bolčina <borut.bolc...@gmail.com>
Subject Re: Relationship not set (NULL)
Date Thu, 14 Oct 2010 17:44:13 GMT
Only after I checked out the cayenne sources, debuged for a couple of hours
I checked again the relationship and found out I was referencing attribute
named mid instead of id attribute - what a plonker! I will make larger fonts
on my screen.

Of course it works now.


2010/10/14 Borut Bolčina <borut.bolcina@gmail.com>

> 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 <andrus@objectstyle.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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