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Tutorial
9

Report Generation with BIRT and JPA

will be presented in the BIRT report using a chart and a table: The tutorial consists of the following steps
Issue
9

Issue with UPPER ?

====================== Step 1: Process Mitglied ($1) instances --------------------------------------- [Step 1a ... ($1) instances. [Step 1b] Evaluate fields in Mitglied ($1) instances. Step 2: Process IndividualProfile ($3) instances   (for every result of step 1
Forum
7

composite index not used in query

used, query plan:  Step 1: Process Action (a) instances ------------------------------------ [Step 1a] Scan index com.agile.hummingbird.Action[startDate] locating all the Action (a) instances. [Step 1b] Filter the results of step 1a retaining only results that satisfy: (a.startDate>:1
Issue
5

Best practise loading big data

we access the data block by block - in each block step by step and in each step value by value ... .steps) { MyValue v : s.values.get(0); } } The values are not referenced by ... (cascase=ALL, fetch=Lazy, target=MyStep} ArrayList steps; } @Entity { class
Forum
5

Slow searching with two indexes

(this) instances that satisfy: (this.receiver==:r). [Step 2] Order the results of step 1 by ... 2] Retrieve fields in NmeaBatch (this) instances. [Step 3] Order the results of step 2 by ... that only has a few tens of different values.   When I query by just the primary key, it's (of course) extremely
Forum
4

Performance in large transactions

  and  test2_ManyTransactions), mentioned in step 3, are not found in the projects. Please follow ... ; public class TransactionsPerformance { static int steps = 10000; public static void main ... );   for (int m = 0; m < steps; m++) {    TypedQuery q = em.createQuery("SELECT m FROM MyEntity
Forum
4

Dependency from enhanced classes to the objectDB library

, it worked. Can you tell us what we did wrong? Please provide step by step instructions on how to use ... ) at java.lang.ClassLoader.loadClass(Unknown Source) ... 78 more   How to use the example step-by ... ) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Caused by: java.lang.ClassNotFoundException
Forum
4

JBoss 7 startup fails

the project by yourself step by step - maybe you misplaced a directory or a file. The error message ... get such errors. Thanks,   Argentino     Please provide step by step instructions for reproducing ... ] Package guest is not found by the enhancer (error 108) 13:49:37,705 ERROR [stderr] (MSC service
Forum
4

How to resolve 404 errors with Eclipse/Maven Spring MVC

was built by following the tutorial step by step, but updating the pom.xml file to use newer versions ... I have created a project as guided by www.objectdb.com/tutorial/jpa/eclipse/spring/run. When I ... The requested resource is not available. Apache Tomcat/6.0.36" I'd love to use eclipse to single step
Issue
4

Mapped by fields are not initialized by JOIN FETCH in queries

As demonstrated in this forum thread, a mapped by collection field with lazy fetch mode is not initialized in results of a query that uses JOIN FETCH on that collection field (when enhancement is used).   Build 2.4.1_06 fixes this issue (fields are now initialized and the test in the forum passes