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9

evictAll() behavior

has to keep strong references to objects to detect changes on commit by snapshot comparison). support Support OK
9

Vs. EHCache

Hi, I realize this is kind of like an apples vs. oranges comparison, but I would be interested if you have any performance information vs. something like ehcache with a persistent store. I'm currently evaluating for a simple schema to persist only 1 or 2 types of entities (but possibly 10k-100k
9

Create simple index for a Id field

writing but also in retrieval and reading operations (see this comparison). But obviously a HashMap in
9

Performance Questions...

than other comparison operators. An index on the string field could help. LIKE against patterns
9

Best File system for objectdb

Hello , whats the best Filesystem do you recommend for speed for objectdb? As far i know these ; btrfs , extfs4 , extfs3 , zfs , ntfs , fat32 , EXOFS , Lustre Which one do you recommend ? kadirbasol Kadir BASOL We have no such comparison data so we cannot recommend one file
9

Querys slower when execute a query after every persist

EmbeddedSystems When entity classes are not enhanced every flush or commit requires comparison
9

Pre-detach loading: retrieval by navigation not working in if statement

a difference ? If so, in order to perform a truly scientifically clean comparison, I might be able to fine
1

ObjectDB 2.2.2

Changed log format to include date and time. Changed class loader management. Fixed handling multiple order expressions in inverse (mapped by) fields. Fixed the behavior of CacheStoreMode setting in L2 shared cache. Fixed TreeSet and TreeMap element comparison bugs. Fixed an Explorer bug in opening
1

NullPointerException on TreeSet load

cache is disabled, as the tree set elements are loaded lazily and not ready for comparison when the tree
1

ObjectDB 2.5.0

with no wildcard characters. Fixed support of embedded objects comparison in queries. Fixed an ArrayIndexOutOfBoundsException in serializing entity objects.

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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