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Compile error in generated query class for an Entity which uses Inheritance in multi-module Maven project #196

wrungel opened this issue Jul 11, 2012 · 4 comments


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@wrungel wrungel commented Jul 11, 2012

The error occurs in the following situation:

3 Entities are spread over two Maven projects: ProjectA and ProjectB.

Maven ProjectA contains two entities: Entity A and Entity Tenant.
A extends an abstract base class and references Tenant.

Maven ProjectB contans Entity B which extends from A.

The Query class for Entity B is generated with compile error.

The following example project demostrates the error:

[ERROR] D:\tmp\q-bug\example-b\target\generated-sources\apt\b\[23,35] cannot find symbol
symbol : constructor QAImpl(b.QBImpl)
location: class a.QAImpl

No error occurs if Entity B is moved to the project A.

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@timowest timowest commented Jul 11, 2012

You can use the QueryEntities annotation in a package of project A to trigger processing of external classes like this

@QueryEntities({A.class, Tenant.class})
package com.mysema.query.domain;

import com.mysema.query.annotations.*;

It is not possible to make this reliably in APT without declaring which external classes to process.

@timowest timowest closed this Jul 11, 2012
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@wrungel wrungel commented Jul 12, 2012

I added with @QueryEntities annotation to project A: no changes.
Then I added with @QueryEntities annotation to project B: also no changes, the same error occurs.

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@timowest timowest commented Jul 12, 2012

QueryEntities was not used in JPAAnnotationProcessor and for external entities the constructor invocation was also incorrect. Both have been fixed now. Your example project works with the version from master.

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@timowest timowest commented Jul 17, 2012

Released in 2.7.1

@timowest timowest closed this Jul 17, 2012
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