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issue

ObjectDB for .NET (C# / VB)

The new file format of ObjectDB 2 has been carefully designed to support multi platform in general and .NET specifically. Work on porting ObjectDB to .NET has started. When it is released - the same database will be available from both Java and .NET and when using client server mode, the client will be have to run one platform where the server is on the other.... file should be accessible from both Java and .NET. In addition, when using client server mode, the client will be able to run one ...

 
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alter table

Hi: After a table built by real data, how to alter table structure, such as: alter table add column ... alter table add index ... TIA #1 2011-08-23 05:11 Hi: After a table built by real data, how to alter table structure, such as: alter table add colu ...

 
issue

Monitoring and Performance counters

After checking last patch from build 2.1.1_01, I started to think about some kind o monitoring tools in ODB. Those tools could look similar to MySQL 'show innodb status', where you can get some informations about how DB is doing. It would be nice to monitor: - inserts/s, updates/s, deletes/s, reads/s - total inserts, update, deletes, reads - I/O operations/s - caches current usage - uptime from last start - caches hit rate - total sessions from clients Feature Request Version: 2.5.2 Priority: Normal Status: Active Replies: 2 Type:  Feature Request ...

 
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Optimization of Map Queries

hi! I am having loads and loads of occurrences of something like ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someProperty ... ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someOtherProperty .. ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someMoreProperties I need to use full qualified names for casting as well as for the map keys because same entity simple names may occur multiple times. Now I've got two questions: ... get method in queries is not very efficient, and in addition the result is not reused but calculated for every occurrence. Maybe ...

 
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DB Doctor sets type to "unknown" for new fields

Hi, we are using ObjectDB 2.5.4_04 on Linux. We added two new Boolean fields to a persistable type and run DB Doctor on the exiting DB file in order to update the schema. The fields are added to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached DB file is what was produced by DB Doctor after adding the emergency and broadcast fields. If you run in DB Explorer ... emergency FROM RecordingMetaData AS r In addition, the entity class schema shows the Boolean type, as well as when you ...

 
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100% CPU when using multiple BETWEEN

Hi, we are evaluating ObjectDB 2.5.1_03 in embedded mode. We have a DB of about 2800 instances of a class that has two java.lang.String members: toExtension and fromExtension. There are other members in the class, but not relevant to the problem.   A query like this cause the java process to start running at 100% CPU (endless loop) and it never recovers: ... 2013-07-17 04:08 In addition to the above description of the problem: We left a problem ...

 
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Difficulty with the BIRT plugin

Hi, am trying to get the BIRT plugin to work. Firstly: connecting to an odb server doesn't seem to work (incompatible versions) - but there isn't any way to find out what version the BIRT plugin is using. Next: connecting directly to a file datasource seems to work, in the sense that I can ping the database, however, there doesn't appear to be any way to create a new Data Set from the Data Explorer, as suggested in the online manual: ... will be added). Regarding the data set - in addition to the instructions in the manual there is a more detailed step by ...

 
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Out of memory

Hi, Today in the middle of the night ODB just crashed leaving this on console screen: ... released by the GC and what cannot be released. In addition, please post the ObjectDB configuration file (to show cache sizes, ...

 
issue

Best practice for history tracking

We would like to add to records start and end timestamp fields. When end field is null, it indicates the last version of this item. Few questions: ... and not for general discussion and questions. In addition, every post should discuss one topic, so I think it would be better to ...

 
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Client server mode no longer works after JRE install

Hi I had client server mode working with no problems with my application. Then suddenly I was getting the following error "Error: missing 'server' at 'C:\Program Files\Java\jre7\bin\server\jvm.dll' on a client machine. It worked in embedded mode but not client server mode. #1 2013-05-01 11:33 Hi I had client server mode working with no problems with my application. Then suddenly I was getting the ...