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5

find() cost unreasonable time!

. support Support I have not test your plan even it sounds good. However, my situation is multiple
5

Problem with distinct select, order by and equivalent alias/attribute path

it must follow these restrictions, otherwise the same result may have multiple different order values
5

Soft Reference Object Cache Recommendation

" for visual guide.) The screenshot of post #1 was taken after triggering multiple full GCs
5

enumeration table? how to on pure jpa?

. GlobalProperty with two String fields key and value, and store your global properties using multiple
5

Optimization Question

at any given time, but then that defeats the whole point of having multiple threads. So yeah
5

Evaluating ObjectDB for SaaS Application

for the reply. Why is write limited to master ? arunjoy Arun Joy An architecture of one writer and multiple
5

Performance issue in a query due to compareTo calls

because multiple entities are involved. You can improve the performance of queries by using indexes
5

Is it possible to using JDO and distributed transaction?

I'am new to study JDO. Can and How I use JDO an distributed transaction?(multiple database)。 Is ObjectDB also provided JCA util just like DataNucleus? Reference: Spring Framework Reference Documentation JCA, JTA, and JDO Transactions - Using and Understanding Java Data Objects JDO : Usage
1

Close() Method of EMF throwing "PersistenceException: Connection is closed" on first attempt to close.

We encountered an issue that caused an outage last Friday on multiple ObjectDb server instances. The problem occurred while trying to close the EMF to three separate ODB databases, residing on different ObjectDb Servers, the exceptions were thrown on two of our servers (TransactionServers
1

ODB-FileWriter holds unecessary entity reference after transaction and entity manager are closed

per open database. Does your application use many different databases? single class loader or multiple

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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