Investigate the effort to integrate metamodel generation and refactoring in
Eclipse IDE
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Key: OPENJPA-1086
URL: https://issues.apache.org/jira/browse/OPENJPA-1086
Project: OpenJPA
Issue Type: New Feature
Components: tooling
Reporter: Pinaki Poddar
One of the major addition in JPA 2.0 is type-aware Criteria query construction.
A string-based JPQL can become invalid when a persistent entity property
changes its name or type, but such error is detected only at runtime. On the
other hand, for a Criteria query, such an error will be detected at compile
time.
This primary usability advantage of Criteria query can really become useful in
an IDE with refactoring support. The native refactoring support provided by IDE
though is not sufficient.
For example, when a persistent property 'xyz' of entity C is renamed to 'abc',
the native refactoring support will appropriately change all references to
'C.xyz' to 'C.abc'. However, a Criteria query is built with reference to C_.xyz
and *not* C.xyz where C_ is the meta-class corresponding to C. Hence, a IDE
plugin should expand the footprint of refactoring to include C_.xyz when C.xyz
changes.
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