h1. Atomic update operations

Before v1.2.6, PlayMorphia user must resort to morphia interface to get atomic update operations done:

bc. Datastore ds = Employee.ds();
UpdateOperations op = ds.createUpdateOperations(Employee.class);
UpdateOperations<Employee> op = ds.createUpdateOperations(Employee.class).inc("salary", 10000).inc("bonus", 99999);
Query<Employee> q = (Query<Employee>)Employee.q().findBy("department", "IT").getMorphiaQuery();
ds.update(q, op);

Now with new v1.2.6, you do it this way:

bc. Employee.o().inc("salary, bonus", 10000, 99999).update("department", "IT");

h2. <a name="why_atomic">Why atomic update operations</a>

TBD.

h2. <a name="resource">See also</a>

# "Understand morphia model":model
# "Using morphia model":crud
# "Using morphia query":query
# "Morphia doc on updating":http://code.google.com/p/morphia/wiki/Updating
# "Mongo doc on updating":http://www.mongodb.org/display/DOCS/Updating