/**
* Retrieve a single object using a list of keys and values to match.
*
* @param context The editing context to use
* @param qualifier The qualifier to use
* @return the single entity that was retrieved
* @throws EOUtilities.MoreThanOneException if there is more than one matching object
*/
public static UserMessageSubscription uniqueObjectMatchingQualifier(
EOEditingContext context, EOQualifier qualifier) throws EOUtilities.MoreThanOneException {
NSArray<UserMessageSubscription> objects = objectsMatchingQualifier(context, qualifier);
if (objects.size() > 1) {
String msg = "fetching UserMessageSubscription";
try {
if (qualifier != null) {
msg += " where " + qualifier;
}
msg += ", result = " + objects;
} catch (Exception e) {
log.error(
"Exception building MoreThanOneException message, " + "contents so far: " + msg, e);
}
throw new EOUtilities.MoreThanOneException(msg);
}
return (objects.size() > 0) ? objects.get(0) : null;
}
/**
* Retrieve the first object that matches a qualifier, when sorted with the specified sort
* orderings.
*
* @param context The editing context to use
* @param qualifier The qualifier to use
* @param sortOrderings the sort orderings
* @return the first entity that was retrieved, or null if there was none
*/
public static UserMessageSubscription firstObjectMatchingQualifier(
EOEditingContext context, EOQualifier qualifier, NSArray<EOSortOrdering> sortOrderings) {
NSArray<UserMessageSubscription> objects =
objectsMatchingQualifier(context, qualifier, sortOrderings);
return (objects.size() > 0) ? objects.get(0) : null;
}