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What algorithm in find()

shows a O(n) complexity. Why? The cost of insertion is subjected to the number of objects in database ... cost changes from 0.2 seconds to 1.1 seconds. Ok, I do the same test in MySQL server, the insertion
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Explorer in 2.3

. Then allow import of that file into another database. 2. Lazy loading of data, especially in table view ... to enter a Java expression into a field. For example, suppose you have a User entity with a password ... -login of last opened (remote) database puts the full URL into the Database Path field
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Feature Request: Improved ObjectDB Explorer

data into the database. What I mean is that we have to write code that is different each time (or ... of data into the database, while we can enter data straight into the GUI very easily in, for instance ... to frequently, manually enter new information into the database (suppose we need to maintain a booklist
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find repeated records by JPQL

query from 430,000 records and put them into hashmap, finally it cost one hour and failed ... an OutOfMemoryError while trying to load all the entity objects into a memory data structure is expected. You may try splitting the query into two queries - first execute the inner query and then use
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Path in tomcat

Hi, If I put the .jar into /opt/Tomcat/lib/, then where the .conf should be in? And the .odb? When I debug the Eclipse web project, I export all things into a .war file. Then I use Tomcat's web deploy tool by the .war file. However, if I put objectdb into the project's /WEB-INF/, I may lost the db
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GC Memory

) is broken out into 16 segments of around 260 MB each.  The process then loads each segment file into memory and then calls persist on each object.  About 1000 entities are persisted each transaction.  This loading continues until the entire segment file is loaded into ObjectDb.  After the segment
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Empty temporary dat files in the temp folder

the %temp%/objectdb_123... folder growth up to 2GB. And then we run into some following errors due to lack ... 8MB) in the TEMP directory. If we take a look into the dat files they are all (with exception ... .dat) created   System.out.println("add a breakpoint - and take a look into temp
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Externalising persistence.xml properties in Glassfish?

Hi,   I've run into a little bit of a wall with regards to persistence.xml and externalising ... my artifacts.   Erick, thanks for your suggestions. I'll look into that now. I'm using EJB3.1, JPA2 on Glassfish 3.1. The solution you mentioned is something I'll look into - my maven resource copying
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query.getResultList() throws ClassCastException

around, I'll try out 2.3.1. In regards to the tips: Yes I noticed this when I started pushing things into ... lookups are 5x+ faster on existent entities. Ok, good to know.  I've already looked into enabling ... ="true" on JDK 6, so hopefully that's good enough.  I need to look into it more. I'd like to look
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ObjectDB version 2.0.0

performance of database insert/update/delete operations. Changed default configuration (for improved