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3

Externalising persistence.xml properties in Glassfish?

Hi, I've run into a little bit of a wall with regards to persistence.xml and externalising the URL ... -working maven script that I use to create my artifacts. Erick, thanks for your suggestions. I'll look into ... look into - my maven resource copying is a little flaky and I'd prefer a build independent way
3

Empty temporary dat files in the temp folder

the %temp%/objectdb_123... folder growth up to 2GB. And then we run into some following errors due to lack ... 8MB) in the TEMP directory. If we take a look into the dat files they are all (with exception ... - and take a look into temp -> "     + "All Database connections are closed but temp contains 10 *.dat
2

problem when primary key value is zero

I am copying data from a postgres database to objectDB. Some of the rows in the postgres table were created by postgres DDL / SQL insert statements and so do not abide by all JPA rules and recommendations, in particular there are some primary keys with value == 0. These cause problems for objectDB
2

Java 8 Enhancer Problem

.objectdb.jpa.EMImpl.merge(EMImpl.java:518) Inserting new objects works. Also merging ones created
2

Object belongs to another EntityManager - ERROR

Hi, From time to time we are getting following error in our project when trying to insert/update a record in database [ObjectDB 2.4.6_13] javax.persistence.RollbackException 10:29:14,880 ERROR [stderr] (http--10.23.3.98-8081-5) Failed to commit transaction: Object 'pbdmodel.impl.OrgJedinicaImpl
2

@Column length is not working.

I am using objectdb 2.8.3, I have a Entity class with a column that is declared as @Column(unique = true, nullable = false, length = 16) but when i m trying to insert a string for that column with a string that has more than 16 character, not able to get any error or exception from ObjectDB
2

Intermittent: "Attempt to reuse an existing primary key value" when persisting a new instance

was '1', but the actual last object created has an id of 168,000. I've inserted 168,000 objects of dummy
2

zip file or JAR manifest missing

will check the target existence, if yes then accumulate, else insert a new record. String sQ2 = "select
2

Performance in SELECT statement

is also very slow (5-6s for 30.000 inserts). Environment is JBoss Wildfly 9.0.2. Classes are enhanced
2

Beginners questions

id; @ManyToOne @Column(name = "VERLAG_ID") @JoinColumn(name="VERLAG_ID", insertable=false, updatable

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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