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2

Error using query with MAX() function

exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_24 (on Linux 2.6.32-71.24.1 ... that is supported by Java (i.e. up to 2GB). Your test case demonstrates an ObjectDB bug in ... ) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_24 (on Linux 2.6.32-71.24.1.el6.x86_64
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2

find() delay

Hi, I tried objectdb in following steps: 1, for 1 to 30 {trans.begin(); create typeC o; em.persist ... , there is no result in one go; I have to disable step 1 and run again, then Step 2 output the expected ... cache? I'm not sure. But why the second find() will output? By the way, a query "select e from nodes e
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2

Tutorial issue

right now, so I created the new project as specified in Step 1 The only thing I did differently was in steps two and three I used the source folder "Tutorial/src" which is what I used to create the project in Step 1; Here's the output; Exception in thread "main" [ObjectDB 2.5.4_04] javax.persistence
Manual
2

JPA Primary Key

the database is uniquely identified (and can be retrieved from the database) by the combination of its type ... have their own separate identity. Automatic Primary Key By default the primary key is a sequential 64 bit number (long) that is set automatically by ObjectDB for every new entity object that is stored
Manual
2

Storing JPA Entity Objects

New entity objects can be stored in the database either explicitly by invoking the persist method ... is committed. An IllegalArgumentException is thrown by persist if the argument is not an instance ... is thrown. The exception is thrown either by persist (if that existing entity object is currently
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2

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

with field "type" GOOD found by the the NamedQuery does not correspond with the actual data present ... application, but addressing this by our support team is expected to take much more time. Images in ... . That's it. Anyway...it's just a NamedQuery that is executed by an EntityManager. That's all. I would really appreciate a fix
Manual
2

Paths and Types in JPQL and Criteria API

classes) are represented in JPQL by the following types of expressions: Variables - FROM ... and functions (e.g. for strings and for numbers), they can be compared by all six comparison operators ... with an instance of a user defined class (represented by a variable, parameter or prefix path expression
Manual
2

Query Parameters in JPA [2011-04-01]

) The following method retrieves a Country object from the database by its name: public Country ... method. The setParameter method supports method chaining (by returning the same TypedQuery instance ... . Named parameters can be easily identified in a query string by their special form, which is a colon
Manual
2

Query Parameters in JPA

) The following method retrieves a Country object from the database by its name: public Country ... method. The setParameter method supports method chaining (by returning the same TypedQuery instance ... . Named parameters can be easily identified in a query string by their special form, which is a colon
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2

Replication error on slave restart

previously. I have copied database file to slave... and so on by manual. It worked fine. But if I restart ... UP TO DATE] 6) got this on slave after step 3: com.objectdb.o.UserException: Optimistic lock failed ... .java:203) at java.lang.Thread.run(Unknown Source) 7) got exception from step 6 every time