About memory

manual

[ODB1] Chapter 3 - Persistent Classes

Explains what a persistence capable class is and which types are supported by JDO.... instances of persistent classes that live only in memory) are called transient objects or transient instances . The JDO ... schema instances. When an old instance is loaded into the memory it is automatically converted into an instance of the new up-to-date ...

 
forum_thread

Create simple index for a Id field

Hello, I just wanted to write another anotation to my key field so I can have a really simple index. This is the original code: @Entity public class ObjectDbEntity<Key,Value> implements DataItemProvider<Value> {         @Id     private Key key = null;     private Value value = null; and I just want my key to be indexed on my db, just like this: ... (see this comparison ). But obviously a HashMap in memory is faster than any DBMS for simple direct lookup operations. ... you may still want to manage your own HashMap cache in memory for specific objects if you need the extra performance. But note ...

 
release

2.4.6

... Version 2.4.4 Improved memory management when handling very large transactions ( issue #170 ). ... space. Removed a shutdown hook that leads to memory leak ( issue #63 ). Completed missing documentation ...

 
issue

GC overhead limit exceeded

I had some memory problems with a process running over the weekend and received the following exceptions in the objectdb log: 1) ... 10:24 I had some memory problems with a process running over the weekend and received the ... This could happen as a result of heavy memory usage. Read about a configuration change that may help in this ...

 
forum_thread

Custom Classloader: Issues with the Enhancer Agent

In my use case I generate some classes dynamically and load them with a custom classloader. The classloader is very standard and does something like this (simplified): ... enhancement to the class and loads the modified version in memory first. However, the main issue is that the Agent seems to call back to ... enhancement to the class and loads the modified version in memory first. Not exactly. The enhancer loads the class before ...

 
release

2.4.5

... Version 2.4.4 Improved memory management when handling very large transactions ( issue #170 ). ... space. Removed a shutdown hook that leads to memory leak ( issue #63 ). Completed missing documentation ...

 
release

2.3.1

... space. Removed a shutdown hook that leads to memory leak ( issue #63 ). Completed missing documentation ... UPDATE & DELETE queries). Fixed memory leak issues. Fixed server hang and deadlock issues. ...

 
release

2.4.7

... Version 2.4.4 Improved memory management when handling very large transactions ( issue #170 ). ... space. Removed a shutdown hook that leads to memory leak ( issue #63 ). Completed missing documentation ...

 
release

2.3.2

... space. Removed a shutdown hook that leads to memory leak ( issue #63 ). Completed missing documentation ... UPDATE & DELETE queries). Fixed memory leak issues. Fixed server hang and deadlock issues. ...

 
forum_thread

Tutorial issue

Ok, so I'm stuck on the Eclipse tutorial. I have a number of other projects running in Eclipse right now, so I created the new project as specified in Step 1 The only thing I did differently was in steps two and three I used the source folder "Tutorial/src" which is what I used to create the project in Step 1; Here's the output; ... another Point class previously and the database had a memory of it. By starting with a new database that memory was erased. Anyway, good that it works now, and unless you move ...