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Multi-tenant capability with hierarchies

there was already the question about multi-tenant setups but only with an generel answer. What we need are multiple ... on multiple databases, so it is possible, but if every tenant has its own database file, managing ... to accept a parameter, if you want to open multiple databases, but currently we don't have an example

EM close causes an exception

against the database are still running? Another option, do you use multiple databases in ... the other. Do you also have multithreading access to ObjectDB on each JVM? Maybe this issue is related to multiple threads, possibly using multiple databases, but on the same JVM rather than to multiple JVMs?

Embedded & Activation & Scalation

among multiple processes on multiple machines. ObjectDB Server is not really scalable right now ... multiple server instances "embedded" into our app so we can avoid the single-process restriction though still have multiple processes to avoid a SPOF? Yes, the OEM License was what I

Mismatch client-server protocol prefix

.processCommit(AbstractPlatformTransactionManager.java:757) I checked multiple times ... of years now and is used in multiple projects. mosi0815 Ralph Moser Looks like very ordinary ... one entity manager to every transaction stops to work correctly. I also found multiple examples

virtual servers and one file

the database across multiple files? Thank you and best regards Arne Arne Arne Stocker multiple files? This is indeed under consideration but could you please provide more information regarding how breaking a database into multiple files, for example one file

PersistenceManager.getObjectsById(Collection,boolean) throwing JDOException

to support multiple objects, but it seems to only be failing irregularly when only a single oid ... collection. It should work with single or multiple IDs and with any collection type. Exception in thread "main" [ObjectDB 2.2] javax.jdo.JDOUserException Failed to find multiple entities

Server vs embedded mode in multi-instance scenario

We are creating a web app that will have multiple different clients, each ... their application at any given time (100k absolute maximum). We will probably have multiple instances per client ... would be to have a separate objectdb server that handles connections from multiple instances. But from what I can tell

Examples of queries

>See this sections in the manual regarding SELECT queries that select multiple expressions: multiple_select_expressions">Multiple SELECT Expressions ... but for common for queries that return multiple expressions in every result. support Support

javax.persistence.ManyToMany

with many-to-many multiplicity. Every many-to-many association has two sides, the owning

Use temporary files to enable very large transactions

> Why don't you split the transaction to multiple smaller transactions? support Support ... ; Why don't you split the transaction to multiple smaller transactions? multiple times representing the state