isMandatory() and getMaxLength() should be members of ObjAttributeб not only
ClientObjAttribute
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Key: CAY-991
URL: https://issues.apache.org/cayenne/browse/CAY-991
Project: Cayenne
Issue Type: Improvement
Components: Cayenne Core Library
Affects Versions: 3.0
Reporter: Andrey Razumovsky
Assignee: Andrus Adamchik
Priority: Minor
While working on client side (using ROP) or server side, developer my access
isMandatory and getMaxLength properties of an ObjAttribute. On server this is
usually done by getDbAttribute().isMandatory() and
getDbAttribute().getMaxLength(). Since DbEntities are not being sent to client,
these two properties are manully set in ClientObjAttribute. So it makes sense
to make isMandatory() and getMaxLength() members of ObjAttribute with reference
to the same props of DbAttribute for server class, and reference to own
ClientObjAttribute class fields for clint implementation.
This is important for validation, because current validateForSave() method of
CayenneDataObject cannot be anyhow applied to client objects. I don't think
client objects should by default implement Validating, because validation code
would execute twice this way (on client and on server). But still it would be
nice to see validation method somewhere (maybe in DataObjectUtils) so that i
could check my objects BEFORE commit
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