Hi all,
I have a suspicion that something is wrong with the way nested ECs are
currently working. The errors I see are the result of missing snapshots. The
errors are very sporadic and hard to reproduce. I've managed to distill this
down to a simple test case. If I drop this:
public void testNestedECs() {
try {
EOEditingContext ec = ERXEC.newEditingContext();
for(int i = 0; i < 100; i++) {
Company c = (Company)
EOUtilities.createAndInsertInstance(ec, Company.ENTITY_NAME);
c.setName(UUID.randomUUID().toString());
ec.saveChanges();
EOEditingContext nested = ERXEC.newEditingContext(ec);
Company nestC = c.localInstanceIn(nested);
for(int j = 0; j < 10; j++) {
Employee e = (Employee)
EOUtilities.createAndInsertInstance(nested, Employee.ENTITY_NAME);
e.setFirstName(UUID.randomUUID().toString());
e.setLastName(UUID.randomUUID().toString());
e.setManager(Boolean.FALSE);
e.addObjectToBothSidesOfRelationshipWithKey(nestC, Employee.COMPANY_KEY);
nested.saveChanges();
ec.saveChanges();
}
c.delete();
ec.saveChanges(); //Line 78
}
} catch (Exception e) {
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
into ERXECTest.java, I get fairly reliable failures due to missing snapshots.
java.lang.IllegalStateException: recordDeleteForObject:
com.webobjects.eoaccess.EODatabaseContext
com.webobjects.eoaccess.EODatabaseContext@489bb457 failed to find a snapshot
for EO with Global ID:_EOIntegralKeyGlobalID[Employee (java.lang.Integer)491]
that has been deleted from
er.extensions.eof.ERXECer.extensions.eof.ERXEC@44581ea2. Cannot delete an
object that has not been fetched from the database
at
com.webobjects.eoaccess.EODatabaseContext.recordDeleteForObject(EODatabaseContext.java:4732)
at
com.webobjects.eoaccess.EODatabaseContext.recordChangesInEditingContext(EODatabaseContext.java:5890)
at
com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditingContext(EOObjectStoreCoordinator.java:373)
at
com.webobjects.eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3192)
at er.extensions.eof.ERXEC._saveChanges(ERXEC.java:1177)
at er.extensions.eof.ERXEC.saveChanges(ERXEC.java:1100)
at er.extensions.eof.ERXECTest.testNestedECs(ERXECTest.java:78)
If I drop the number of loops down to 10 instead of 100, I don't see the
exceptions. Does anyone see an obvious problem with my test case or perhaps
have ideas about what's going wrong before I begin digging? :-)
Ramsey
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