About expression


Apache License, Version 2.0, January 2004

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions . "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shal ...


[ODB1] Chapter 3 - Persistent Classes

Explains what a persistence capable class is and which types are supported by JDO.... in sub directories using the -s option (the "*.class" expression is in quote marks here to avoid auto resolving at the shell level in ...


ClassCastException on SELECT NEW ... after UPDATE over Java RMI

Hi, we are using ObjectDB 2.5.4_04 on Linux. Our application, which uses ObjectDb as a DB, exposes a Java RMI interface which allows remote RMI clients to run JPQL queries on the DB. The application internally runs SELECT NEW ... queries. For example: ... as a workaround, make sure that the type in the IN expression matches the type of the field, and it should work. ...


Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

I have marked this as CRITICAL because although there probably is no database integrity problem, the inability to robustly query relationship fields in a web application renders the ObjectDB system seemingly useless. objectdb-2.2.5_10 NetbeansIDE6.9.1 Glassfish3.01 client-server mode. odb file written to db-files/greendesk/greendesk.odb (see persistence.xml), copy of odb output attached. ... the property/field is access, such as by a JSF page EL expression. This is a massive problem for me. I should not have to go ...


ObjectDB-2.6.9: Failed to commit transaction: Failed to set numeric value of field property Element.id using reflection

The following error is reported for objectdb-2.6.9.jar: Failed to commit transaction: Failed to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection (error 613) Did not happen with objectdb-2.6.3_04 (which one can easily test and compare in the test console app for NetBeans8.1 provided, as explained below). To reproduce download the app and unpack, open in NetBeans8.1, perform Clean and Build, and Run: Bug Version: Priority: High Status: Fixed Replies: 9 Type:  Bug ...



The Throwable class is the superclass of all errors and exceptions in the Java language.(Class of java.langClass Throwable)


JPA / JDO Class Enhancer

The Enhancer is a post compilation tool that improves performance by modifying the byte code of compiled classes after compilation.... -s "*.class" The "*.class" expression above is enclosed in quotes to prevent extraction by the shell. ...


[ODB1] Chapter 5 - JDO Connections

The PersistenShows how to use database connections and transactions in JDO. ceManagerFactory interface represents a factory of database connections. Its main role is to provide PersistenceManager instances. The PersistenceManager interface represents a database connection. Every operation on a database requires a PersistenceManager instance. The Transaction interface represents a transaction on a database. Every operation that modifies the content of the database requires an active transaction.[toc hidden:1]... call to getClass() should be replaced by some other expression (e.g. MyClass.class ) in a static context (i.e. a static method ...


JPQL keyword in entity - what to do?

Hi, I have a problem with entity that is using one of JPQL keywords as one of the fields. It's a 'type' field. When I try to build a query that looks for example like this: select new ResultData(p.type.name, count(p.id)) from Product as p group by p.type.name I got this exception: #1 2011-03-01 22:22 Hi, I have a problem with entity that is using one of JPQL keywords as one of the fields. It's a 'type' f ...


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