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ObjectDB within a resource adapter module and Java EE Connector Architecture

(which can also be an ObjectDB database url) in the unitName parameter of @PersistenceContext ... that ObjectDB interprets urls as implicit persistence units, and support some syntax that replaces a logical path with a parameter (similar to $objectdb in the url) with a value from a system property

Replicated cluster recovery

is automatic - between a main url and backup urls, which may also reference databases on different nodes ... is the connection url: javax.jdo.option.ConnectionURL=objectdb://localhost:6000/test.odb;user=admin;password

_PersistenceException: Failed to open file

is : <property name="javax.persistence.jdbc.url" value="$objectdb://localhost:8080/db/guests.odb"/> What could be the problem? my best regards hussamcs Ibrahim Hussam The url that you were trying to use ... directory. Your url should be: "objectdb://localhost:8080/db/guests.odb" and not "$objectdb://localhost:8080/db/guests.odb" support Support

JSON serialization and __odbHidden members

Firefox/15.0",        "url": "user/reguser"    },    "lastActivity__odbHidden ... (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/15.0",        "url": "user/reguser"    },    "loginInfo ... ) Gecko/20100101 Firefox/15.0",        "url": "user/reguser"    }, // and so on So the problem

persistence.xml classes not respected by ObjectDB

> <properties> <property name="javax.persistence.jdbc.url" value="objectdb://localhost/xxx/p1.odb ... .persistence.jdbc.url" value="objectdb://localhost/xxx/p2.odb"/> <property name="javax ... .url" value="objectdb://localhost/xxx/p2.odb"/>     <property name="javax.persistence.jdbc.user

best practice for DB recovery

, and when the master fails, switch your web application to the slave (not by using a dual url, but by using only the master url and when it fails switching to the slave url by your DAO layer

How to have a distribuited GWT application with ObjectDB and Spring?

databases via URL...I would need some explanation on how to do it, or a simple guid. Can you help ... its own ObjectDB database as a database server, each database has a unique url and each database can be accessed by that url. In standard JPA you may define several persistence units, one for each database

run several embedded systems on one server, problem with double used port

that case you should be able to specify a port to be used when you open a database in the url/path ... enabled="false" /> and also that you do not specify a port as part of the connection url. This stack trace ... as part of the connection url (with the port= parameter). support Support

How to connect to an embedded ObjectDB in a JPA/JEE application?

the client-server connection url with an embedded connection url, e.g. an absolute file path. See this documentation section regarding client-server and embedded connection urls. support Support

Automatic Switch to Replicated Server Limitations

to another server when a server goes down, by specifying a composite url. Currently this feature has the following limitations: The first server in the composite url has to be available when connecting ... should address these issues and improve the ability of automatic url switch. support Support

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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