Re: Setting setRefreshesRefetchedObjects using EOGenerator classes
Re: Setting setRefreshesRefetchedObjects using EOGenerator classes
- Subject: Re: Setting setRefreshesRefetchedObjects using EOGenerator classes
- From: Jeff Schmitz <email@hidden>
- Date: Sun, 26 Oct 2008 22:02:20 -0500
Nevermind I think,
I just found the below EO operation that should do exactly what I
need. Whenever I need to make sure I have the very freshest data from
the database in my EO, I'll just call:
public ERXEnterpriseObject
refetchObjectFromDBinEditingContext(EOEditingContext ec) {
EOEntity entity = ERXEOAccessUtilities.entityNamed(ec, entityName());
EOQualifier qual =
entity.qualifierForPrimaryKey(primaryKeyDictionary(false));
EOFetchSpecification fetchSpec = new
EOFetchSpecification(entityName(), qual, null);
fetchSpec.setRefreshesRefetchedObjects(true);
NSArray results = ec.objectsWithFetchSpecification(fetchSpec);
ERXEnterpriseObject freshObject = null;
if (results.count() > 0) {
freshObject = (ERXEnterpriseObject) results.objectAtIndex(0);
}
return freshObject;
}
Thanks,
Jeff
On Oct 26, 2008, at 9:25 AM, Jeff Schmitz wrote:
Hello,
I'd like to be able programatically set the
setRefreshesRefetchedObjects on specific fetch specifications to
true under certain, "run-time" situations to assure I have fresh
data from the database when a fetch is performed.
Using the EOGenerator generated "fetch" functions, the Fetch specs
are always local to the generated operations, so I'm thinking the
only way to do what I need would be to copy a "set" of fetch
operations from the generated EO code and change it accordingly in
my edited EOCode as shown below. Is there a simpler way to do this
that I'm missing? Is there a way to get EOGenerator to produce such
functions?
Copied from _Entry.java, pasted into Entry.java and edited to add
call to setRefreshesRefetchedObjects:
public static NSArray<Entry> fetchRefreshedEntries(EOEditingContext
editingContext, EOQualifier qualifier, NSArray<EOSortOrdering>
sortOrderings) {
EOFetchSpecification fetchSpec = new
EOFetchSpecification(_Entry.ENTITY_NAME, qualifier, sortOrderings);
fetchSpec. setRefreshesRefetchedObjects(true);
fetchSpec.setIsDeep(true);
NSArray<Entry> eoObjects =
(NSArray
<Entry>)editingContext.objectsWithFetchSpecification(fetchSpec);
return eoObjects;
}
public static Entry fetchRefreshedEntry(EOEditingContext
editingContext, String keyName, Object value) {
return _Entry.fetchRefreshedEntry(editingContext, new
EOKeyValueQualifier(keyName, EOQualifier.QualifierOperatorEqual,
value));
}
public static Entry fetchRefreshedEntry(EOEditingContext
editingContext, EOQualifier qualifier) {
NSArray<Entry> eoObjects =
_Entry.fetchRefreshedEntries(editingContext, qualifier, null);
Entry eoObject;
int count = eoObjects.count();
if (count == 0) {
eoObject = null;
}
else if (count == 1) {
eoObject = (Entry)eoObjects.objectAtIndex(0);
}
else {
throw new IllegalStateException("There was more than one Entry
that matched the qualifier '" + qualifier + "'.");
}
return eoObject;
}
thanks,
Jeff
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