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Best practice: Database update/migration of embedded databases in products

regards, BTC-ES btc_es BTC EmbeddedSystems The ObjectDB schema evolution support consists of: Automatic schema evolution - for adding and removing fields and for class hierarchy change. Configuration schema changes - for renaming packages, classes and fields. The scenario in your post, of merging

com.objectdb.o.UserException: Failed to generate dynamic type

your classes, if generating these classes from the database schema fails. What is the hierarchy ... the standard JVM -cp / -classpath argument. support Support Reading about Schema Update. I see there is Package/Class/Field elements in the schema - but where do I find the schema section? In which file

Extending model by "common entity"

. lwalkowski Lukasz Walkowski This schema change should be handled by ObjectDB - so the exception ... a bug in ObjectDB schema evolution. Please check build 2.0.5_01 that should fix it. If possible - apply the schema change again to a database that was used only with the old schema. If you must repair

OEM: Too many persistable types (>10) - exceeds evaluation limit (error 1011)

.conf <Schema> to match, as described here: https://www.objectdb.com/java/jpa/setting/schema. Adding an ObjectDB.conf entry as follows corrected the issue: <schema> <package name="com.unilogical.moxydox.protocol.jdo" new-name="com.unilogical.moxydox.protocol.server.jdo"> </package> </schema> CBE CBE

500Mb ObjectDb database opening issue

500Mb ObjectDb database opening issue

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

="true" />                 <dirty-tracking arrays="false" />         </entities>         <schema>         </schema>         <server>                 <connection port="9999" max="100 ... -tracking arrays="false" />         </entities>         <schema>         </schema>         <server

Replication error on slave restart

="true" /> <dirty-tracking arrays="false" /> </entities> <schema> </schema> <server ... > <schema> </schema> <server>   <connection port="6136" max="100" />   <data path="$objectdb/db

Replication issue, Replayer failing due to NullPointerException.

" /> </entities> <schema> </schema> <server> <connection port="2122" max="100" /> <data path="/usr ... " /> </entities> <schema> </schema> <server> <connection port="2122" max="100" /> <data

Failed to validate XML

more Persistence.xml <?xml version="1.0" encoding="UTF-8"?> <!-- Schemas: http://www.oracle.com ... (); } } /** Create database schema from entities. */ @Test public void testCreateSchema() throws ... all three schemas from page - http://www.oracle.com/webfolder/technetwork/jsc/xml/ns/persistence/index.html In


that such an exception is possible as a result of schema change, in which id fields are removed ... supported. support Support When you say schema change do you mean changing the code for the entity ... ) felixobjectdb Richard Szurgot In that case it is not a schema change problem of course. Please run the Doctor

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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