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From "Patrick Linskey (JIRA)" <j...@apache.org>
Subject [jira] Updated: (OPENJPA-132) java.lang.NoSuchMethodError for entity with ID of type java.sql.Date
Date Thu, 01 Mar 2007 01:12:52 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Patrick Linskey updated OPENJPA-132:
------------------------------------

    Fix Version/s: 0.9.7

> java.lang.NoSuchMethodError for entity with ID of type java.sql.Date
> --------------------------------------------------------------------
>
>                 Key: OPENJPA-132
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-132
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>            Reporter: Michael Dick
>             Fix For: 0.9.7
>
>
> Opening JIRA report to track the following problem (posted to development forum http://www.nabble.com/Exception-when-using-java.sql.Date-as-an-id-tf3189597.html)

> I'm getting the following exception when I try to fetch an entity with a java.sql.Date
as the id :
> java.lang.NoSuchMethodError: org.apache.openjpa.util.DateId.getId()Ljava/sql/Date;
>     at mikedd.entities.SqlDatePK.pcCopyKeyFieldsFromObjectId (SqlDatePK.java)
>     at mikedd.entities.SqlDatePK.pcNewInstance(SqlDatePK.java)
>     at org.apache.openjpa.enhance.PCRegistry.newInstance(PCRegistry.java:118)
>     at org.apache.openjpa.kernel.StateManagerImpl.initialize (StateManagerImpl.java:247)
>     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:327)
>     at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:252)
>     at org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:108)
>     at org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:54)
>     at org.apache.openjpa.kernel.BrokerImpl.initialize (BrokerImpl.java:868)
>     at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:826)
>     at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:743)
>     at org.apache.openjpa.kernel.DelegatingBroker.find (DelegatingBroker.java:169)
>     at org.apache.openjpa.persistence.EntityManagerImpl.find(EntityManagerImpl.java:346)
>     at mikedd.tests.TestSqlDateId.testFindAfterClear(TestSqlDateId.java:25)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
>     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     at java.lang.reflect.Method.invoke (Method.java:585)
>     at junit.framework.TestCase.runTest(TestCase.java:154)
>     . . .
> It's coming from the generated bytecode which expects there to be a getId method that
returns the same type of the Id, however java.sql.Date is using the same ID class as java.util.Date.
Do we need a separate class for java.sql.Date? 
> Responses from Patrick and Craig follow. The consensus so far is to provide ID separate
classes for java.sql.Date and java.util.Date. 
> It looks like we either need a separate type for java.sql.Date (and
> presumably java.sql.Timestamp), or we need to change the logic to accept
> a getId() method that returns a type that is assignable from the id
> field's type.
> -Patrick
> It's probably cleaner if we have separate classes for the different
> types. That is, have the getId method in the new
> org.apache.openjpa.util.SQLDateId return the proper type
> (java.sql.Date). After all, java.sql.{Date, Time, Timestamp} are not
> really the same as java.util.Date.
> -Craig
> FTR, I think that I prefer separate classes as well; it's clearer, and
> avoids any ambiguity with other subclasses in the future.
> -Patrick

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