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8

Understanding limitations of schema evolution

, and you will have to write code for making this schema change. support Support Thanks for your reply. Could you please elaborate more on the nature and complexity of the code that one has to write in the second ... "Could you please elaborate more on the nature and complexity of the code that one has to write in order to develop an application?" support Support
8

"Attempt to lock a non entity object" error

(),       LockModeType.PESSIMISTIC_WRITE); . . } //doEdit ... );         em.lock(p, LockModeType.PESSIMISTIC_WRITE);         System.out.println("After find and first lock ... ();         // next line throws IllegalArgumentException         em.lock(p, LockModeType.PESSIMISTIC_WRITE
8

EntityManager JPA or JDO impl and different behavior

on linux. I'm getting this error: Caused by: com.objectdb.o._PersistenceException: Failed to write to file 'd:\temp\com\contextspace\datamodel\party\IDHolder.class' and it should never try and write on d ... should fix the new "Failed to write to file" error. Thank you for the "mvn eclipse:eclipse" tip. Previously
8

Error 613 - i cant put a list<Athlete> into a Squad object

.RollbackException Failed to commit transaction: Failed to write the value of field test.Squad ... : com.objectdb.o._PersistenceException: Failed to write the value of field test.Squad.athlets using ... more Caused by: com.objectdb.o.UserException: Failed to write the value of field test.Squad.athlets
8

Slow performance on Mac

(build 25.131-b11, mixed mode) Running sample jar: - To generate data (write): java -jar demo-0.0.1-SNAPSHOT.jar write /path/to/file.odb - To read data (write): java -jar demo-0.0.1-SNAPSHOT.jar read
8

Exception when querying Map property with @embedded & Enhancer enabled

the error 'Failed to write the value of field field TestEmbeddableMap$MyAttributeItem.id using enhanced ... .PersistenceException Failed to write the value of field field TestEmbeddableMap$MyAttributeItem.id using enhanced ... .main(TestEmbeddableMap.java:40) Caused by: com.objectdb.o.UserException: Failed to write the value
8

Feature Request: Improved ObjectDB Explorer

data into the database. What I mean is that we have to write code that is different each time (or write some methods, but still varying input each time), and execute some main method to get blocks ... , MySQL workbench. We can write methods to batch the process, but this becomes annoying if we need
8

Pre-detach loading: retrieval by navigation not working in if statement

compiler to write .sig files, rather than .class files, to the NetBeans cache, and side-steps any build ... that you can set (on your web application) in order to write enhanced classes to files: -Dobjectdb ... (on your web application) in order to write enhanced classes to files: -Dobjectdb.code.output=<path
1

NullPointerException when using multithreading

to the database. When the client application starts writing, several of the threads throw the above exception but most of the threads are able to do their writes without issue. CAPdev CAP Dev This exception ... simultaneously from several threads. Please try build 2.4.4_10 that should solve this issue. By the way, writing
1

boolean field flips after schema update (in class) of another field

may still be the best option to try now. support Support I would recommend to write a test case for this scenario ... More details are needed in order to write a test case that can catch such an issue ... for us to reproduce or write tests for. It has happened several times

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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