About expression

doc

java.lang.Throwable

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

 
issue

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 ...

 
page

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 ...

 
manual

[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 ...

 
forum_thread

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 ...

 
manual

[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 ...

 
manual

[ODB1] Chapter 6 - Persistent Objects

Shows how to store, retrieve, update and delete database objects. ... object obj is locked only when the following expression evaluates to true : JDOHelper. isPersistent ( ...

 
page

Privacy Policy

What is this Privacy Policy for? This privacy policy is for this website www.objectdb.com and served by ObjectDB Software Ltd and governs the privacy of its users who choose to use it. The policy sets out the different areas where use ...

 
issue

Query Execution Error

This query Bug Version: 2.3.6 Priority: Normal Status: Fixed Replies: 4 Type:  Bug ...

 
manual

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. ...