public void test() {
UnitOfWork uow = getSession().acquireUnitOfWork();
Vector allDepts = uow.readAllObjects(Dept.class);
Dept cloneDept = (Dept) allDepts.get(0);
this.initialSize = cloneDept.getEmpCollection().size();
Dept deptToEdit = (Dept) allDepts.get(0);
Iterator empIter = deptToEdit.getEmpCollection().iterator();
empIter.next();
Emp empToEdit = (Emp) empIter.next();
empToEdit.setEname("whatever");
uow.revertAndResume();
Vector allDeptsAgain = uow.readAllObjects(Dept.class);
cloneDept = (Dept) allDepts.get(0);
if (cloneDept.getEmpCollection().size() != this.initialSize) {
throw new TestErrorException(
"Revert cause duplicates to be entered in relationship maintenanced collection");
}
}
/*
* This test creates an object and registers it with a unit of work. It then serializes that
* object and deserializes it. Adds an object onto the origional then performs serialization
* sequence again. Then deepMergeClone is attempted and the results are compared to verify that
* the merge worked.
*/
public void test() {
try {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
ObjectOutputStream stream = new ObjectOutputStream(byteStream);
// create the phoneNumber object
Session session = getSession();
UnitOfWork uow = session.acquireUnitOfWork();
this.deptObject =
(Dept)
session.readObject(
Dept.class,
new org.eclipse.persistence.expressions.ExpressionBuilder()
.get("deptno")
.equal(5.0));
Dept deptClone = (Dept) uow.registerObject(this.deptObject);
// force instantiations of value holders before serialization
deptClone.getEmpCollection().size();
Emp empClone = null;
if ((deptClone.getEmpCollection() != null) && (deptClone.getEmpCollection().size() > 1)) {
empClone = (Emp) deptClone.getEmpCollection().iterator().next();
deptClone.getEmpCollection().remove(empClone);
empClone.setDeptno(null);
}
// serialize object by writing to a stream
stream.writeObject(deptClone);
stream.writeObject(empClone);
stream.flush();
byte[] arr = byteStream.toByteArray();
ByteArrayInputStream inByteStream = new ByteArrayInputStream(arr);
ObjectInputStream inObjStream = new ObjectInputStream(inByteStream);
Dept deserialDept;
Emp deserialEmp = null;
// deserialize the object
try {
deserialDept = (Dept) inObjStream.readObject();
deserialEmp = (Emp) inObjStream.readObject();
} catch (ClassNotFoundException e) {
throw new TestErrorException("Could not deserialize object " + e.toString());
}
// add a new manager, test 1-m's
/* if (deserialDept.getEmpCollection() != null && deserialDept.getEmpCollection().size() > 1) {
deserialEmp = (Emp)deserialDept.getEmpCollection().iterator().next();
deserialDept.getEmpCollection().remove(deserialEmp);
deserialEmp.setDeptno(null);
}
*/
deserialDept.getEmpCollection().add(deserialEmp);
deserialEmp.setDeptno(deserialDept);
int collectionSize = deserialDept.getEmpCollection().size();
byteStream = new ByteArrayOutputStream();
stream = new ObjectOutputStream(byteStream);
// send the ammended object back through the serialization process
stream.writeObject(deserialDept);
stream.flush();
arr = byteStream.toByteArray();
inByteStream = new ByteArrayInputStream(arr);
inObjStream = new ObjectInputStream(inByteStream);
try {
deserialDept = (Dept) inObjStream.readObject();
} catch (ClassNotFoundException e) {
throw new TestErrorException("Could not deserialize object " + e.toString());
}
// merge the ammended clone with the unit of work
deptClone = (Dept) uow.deepMergeClone(deserialDept);
if (deptClone.getEmpCollection().size() != collectionSize) {
throw new TestErrorException("Failed to merge the collection correctly not enough Emps");
}
for (Iterator iterator = deptClone.getEmpCollection().iterator(); iterator.hasNext(); ) {
Emp emp = (Emp) iterator.next();
if (emp.getDeptno() != deptClone) {
throw new TestErrorException("Failed to merge the back pointer");
}
}
uow.commit();
} catch (IOException e) {
throw new TestErrorException("Error running Test " + e.toString());
}
}
