Andrus Adamchik created CAY-2964:
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Summary: ClassCastException for PKs on Oracle
Key: CAY-2964
URL: https://issues.apache.org/jira/browse/CAY-2964
Project: Cayenne
Issue Type: Task
Reporter: Andrus Adamchik
Assignee: Andrus Adamchik
Fix For: 5.0-M3
On adapters that do not support JDBC generated keys (Oracle, Firebird,
FrontBase and default JdbcAdapter), committing a new object whose generated
meaningful PK is mapped to an ObjAttribute Java type different from the DB
column type throws:
{noformat}
java.lang.ClassCastException: class java.lang.Integer cannot be cast
to class java.math.BigInteger
at ReplacementIdVisitor.updateId(ReplacementIdVisitor.java:106){noformat}
Root cause: JdbcPkGenerator.generatePk() types the generated value from the DB
column only (Long for BIGINT, Integer otherwise).
ReplacementIdVisitor.updateId() then writes it directly into the meaningful-PK
property without coercion. Adapters using JDBC generated keys are unaffected
because BatchAction.typeForGeneratedPK() already coerces to the ObjAttribute
type.
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