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From John Armstrong <siber...@gmail.com>
Subject Re: API wish(es)
Date Mon, 06 Apr 2009 14:33:30 GMT
Andrey, you left me in suspense :)

> BTW right here's a method which returns one object of query result

Are you saying use ObjectIdQuery to get one result or is there another
normal query that will do it?

John-

2009/4/6 Andrey Razumovsky <razumovsky.andrey@gmail.com>:
> The correct way to get fresh object is similiar to the method in
> DataObjectUtils:
>
> public static Object freshObjectForPK(ObjectContext context, ObjectId id) {
>        return DataObjectUtils.objectForQuery(context, new ObjectIdQuery(
>                id,
>                false,
>                ObjectIdQuery.REFRESH));
>    }
>
> BTW right here's a method which returns one object of query result
>
> 2009/4/6 Borut Bolčina <borut.bolcina@gmail.com>
>
>> Hi,
>>
>> would it be possible to add one method in DataObjectUtils,
>>
>> DataObjectA dataObjectA = DataObjectUtils.objectForPK(dataContext,
>> DataObjectA.class, 1, QueryCacheStrategy.NO_CACHE);
>>
>> which would always return a fresh object.
>>
>>
>> By the way, is this the correct way of fetching an object directly
>> from database?
>>
>> Expression e = ExpressionFactory.matchExp(DataObjectA.ID_PK_COLUMN, "1");
>> SelectQuery query = new SelectQuery(DataObjectA.class, e);
>> query.setCacheStrategy(QueryCacheStrategy.NO_CACHE);
>> List list = dataContext.performQuery(query);
>>
>> DataObjectA objectA= null;
>> if (list.size() > 0) {
>>    objectA= (DataObjectA) list.get(0);
>> }
>>
>> The above code would still use object cache, right, so I will not be
>> getting the object with values as set in database (maybe changed by
>> 3rd party process). How to overcome this in the above code?
>>
>> Also, wouldn't it be convenient if performQuery could return just one
>> object so we do not have to always type the boilerplate
>> if(list.size>0) ?
>>
>> Regards,
>> Borut
>>
>

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