Re: cached objects in the object context?

Andrus Adamchik <[email protected]> Mon, 20 Apr 2026 11:20:01 -0400
Newsgroups gmane.comp.java.cayenne.user
Message-ID <[email protected]>
Hi Rob,

Actually, "no cache" is the default strategy for every query. What may =
remain cached after a query is related objects. So while you do not need =
an explicit "cacheStrategy(QueryCacheStrategy.NO_CACHE)", you may need =
to curate your prefetches to ensure the relevant subgraph is refreshed.=20=


Andrus


> On Apr 20, 2026, at 11:15=E2=80=AFAM, Robert A. Decker =
<[email protected]> wrote:
>=20
> Is it as simple as:
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> List<AiJob> jobs =3D ObjectSelect.query(AiJob.class)
> .cacheStrategy(QueryCacheStrategy.NO_CACHE)
> .where(...
>=20
> I just want the entire graph of the fetch to be fresh each time.
>=20
> Rob
>=20
>=20
>> On 20 Apr 2026, at 13:49, Robert A. Decker <[email protected]> =
wrote:
>>=20
>> I have a couple of different systems modifying the database my =
cayenne code is talking to. Every now and then I see behaviour that I =
think says that something is being cached between database searches even =
though I create a new context before each search:
>> ObjectContext context =3D cayenne.newContext();   (cayenne is a =
ServerRuntime built like at the end of this message)
>>=20
>> Even though I'm creating a new context before the search, could the =
server runtime that the context is built from be caching objects? If so, =
should I wipe the cache before the search? Or is there a way to make =
sure it doesn't work with a cache?
>>=20
>> thanks,
>> Rob
>>=20
>>=20
>>=20
>>       cayenneRuntime =3D ServerRuntime.builder()
>>               .addConfig("cayenne-project.xml")
>>               .addModule(binder ->
>>                       ServerModule.contributePkGenerators(binder)
>>                               .put(MySQLAdapter.class.getName(), =
SmsPkGenerator.class))
>>               .dataSource(DataSourceBuilder
>>                       =
.url(environment.getProperty("org.apache.cayenne.datasource.jdbc.url"))
>>                       =
.driver(environment.getProperty("org.apache.cayenne.datasource.jdbc.driver=
"))
>>                       =
.userName(environment.getProperty("org.apache.cayenne.datasource.jdbc.user=
name"))
>>                       =
.password(environment.getProperty("org.apache.cayenne.datasource.jdbc.pass=
word"))
>>                       =
.pool(Integer.parseInt(Objects.requireNonNull(environment.getProperty("org=
.apache.cayenne.datasource.jdbc.minConnections"))),
>>                             =
Integer.parseInt(Objects.requireNonNull(environment.getProperty("org.apach=
e.cayenne.datasource.jdbc.maxConnections"))))
>>                       .build())
>>               .build();
>>=20
>=20