Bugzilla – Full Text Bug Listing
| Summary: | Function KEY() breaks the query if the value of a Map-mapping has a converter | ||||||
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| Product: | z_Archived | Reporter: | Igor Mukhin <iimuhin> | ||||
| Component: | Eclipselink | Assignee: | Nobody - feel free to take it <nobody> | ||||
| Status: | NEW --- | QA Contact: | |||||
| Severity: | major | ||||||
| Priority: | P2 | CC: | iimuhin, tom.ware | ||||
| Version: | unspecified | ||||||
| Target Milestone: | --- | ||||||
| Hardware: | PC | ||||||
| OS: | Windows 7 | ||||||
| Whiteboard: | |||||||
| Attachments: |
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Setting target and priority. See the following page for details about these fields: http://wiki.eclipse.org/EclipseLink/Development/Bugs/Guidelines Created attachment 195130 [details]
rough proposed fix
a rough fix I came across while working on something else for the Extensible mappings feature. Not ready for checkin because I do not have a test case.
The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink |
Build Identifier: 2.1.0 @Entity public class Person { public enum Enum1 { VALUE1, VALUE2 } @Id private int id; @ElementCollection private Map<String, Integer> str2int = new Hashtable<String, Integer>(); @ElementCollection private Map<String, Enum1> str2enum = new Hashtable<String, Enum1>(); } Next query will work (because no converter needed for Integer): TypedQuery<Person> q = em.createQuery("select p from Person p JOIN p.str2int me where key(me) = ?1", Person.class); q.setParameter(1, "test"); List<Person> persons = q.getResultList(); This query will fail (because EL will incorrectly use the value converter (enum) for the key (string)): TypedQuery<Person> q = em.createQuery("select p from Person p JOIN p.str2enum me where key(me) = ?1", Person.class); q.setParameter(1, "test"); List<Person> persons = q.getResultList(); Exception: Exception in thread "main" java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Enum at org.eclipse.persistence.mappings.converters.EnumTypeConverter.convertObjectValueToDataValue(EnumTypeConverter.java:137) at org.eclipse.persistence.mappings.DirectCollectionMapping.getFieldValue(DirectCollectionMapping.java:2132) at org.eclipse.persistence.internal.expressions.QueryKeyExpression.getFieldValue(QueryKeyExpression.java:374) at org.eclipse.persistence.internal.expressions.ParameterExpression.getValue(ParameterExpression.java:256) Possible solution: the converter for the key-type should be used with KEY() function. Thanks. Reproducible: Always Steps to Reproduce: see description