About memory

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Manual
10

Index Definition

that ObjectDB maintains in the file system rather than in memory. The keys of the BTree
Manual
10

FROM clause (JPQL / Criteria API)

the illusion that all the database objects are available in memory for navigation. But this feature
Manual
10

SELECT clause (JPQL / Criteria API)

less memory. SELECT DISTINCT Queries that use projection may return duplicate results. For example
Manual
10

JPA / JDO Class Enhancer

with ObjectDB Enhancer as a Java Agent, every loaded class is checked and automatically enhanced in memory
Manual
10

Updating JPA Entity Objects

Modifying existing entity objects that are stored in the database is based on transparent persistence, which means that changes are detected and handled automatically. Transparent Update Once an entity object is retrieved from the database (no matter which way) it can simply be modified in memory
Manual
10

General Settings and Logging

" threshold="64mb" /> To meet memory constraints ObjectDB can use temporary files in processing of large
Manual
10

Obtaining a JPA Database Connection [2011-02-11]

updates are collected and managed in memory and applied to the database when the transaction
Manual
10

Obtaining a JPA Database Connection

updates are collected and managed in memory and applied to the database when the transaction
Issue
7

Best practise loading big data

that the memory consumption is extremly high, many elements are hold by internal classes of ObjectDB. Garbage collection does not gain enough free memory. We experimented a bit but so far only workarounds helped to gain a lower memory footprint. One is to stupidly commit the transaction
Issue
4

Use temporary files to enable very large transactions

flush() and detach()). But an array of bytes, any ObjectDB memory, still allocates a lot of memory ... to a temporary file. Even without speed optimizations, but with priority on the memory usage. Ideally ... that can address your needs. Particularly the unlimited size. The memory problem is with Page