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12

Criteria Query results in a NoResultException instead of returning object

._NoResultException: No matching results for a unique query at org.jboss.seam.security.IdentityImpl.authenticate(IdentityImpl.java:304) at org.jboss.seam.security.IdentityImpl.login(IdentityImpl.java:223) at org.jboss.seam.security.org$jboss$weld$bean-WEB-INF$lib$seam-security-impl-ManagedBean-class_org
12

ObjectDB Enincompatible with Quarkus?

introspection. (if I understand it correctly). Feb 18, 2021 3:37:23 PM org.jboss.threads.Version <clinit> INFO: JBoss Threads version 3.2.0.Final java.lang.ExceptionInInitializerError java.lang ... . Actually it seems as an issue with Quarkus (or GraphQL), which takes exclusive control
2

DELETE Queries in JPA/JPQL

As explained in chapter 2, entity objects can be deleted from the database by: Retrieving ... a separate EntityManager for DELETE queries. As with any operation that modifies the database, DELETE ... variable DELETE FROM Country AS c  // AS + an optional variable ObjectDB supports using the java.lang
2

Literals in JPQL and Criteria Queries

Literals in JPQL, as in Java, represent constant values. JPQL supports various types of literals ... literals should be used sparingly as queries that use parameters instead of literals ... that comparison with NULL in JPQL follows the SQL rules for NULL comparison rather than the Java rules, as
2

Chapter 6 - Configuration

from the location of the objectdb.jar file. It is defined as the path to the directory in ... directory is considered to be the ObjectDB home directory ($objectdb). As a result, $objectdb ... "); // new $objectdb As with any other system property it can also be set as an argument to the JVM
2

Online Backup

), since an ObjectDB database is stored as an ordinary file in the file system. ObjectDB supports ... applications that provide round the clock service (24/7/365) such as most web applications. Starting Online ... directory location. Notice that if the target argument is specified as a java.io.File instance and em
2

Paths and Types in JPQL and Criteria API

as arguments. Path expressions that navigate from one object to another. Instances of user defined ... , however, is valid even if the persistent field is declared as private (which is usually the case). Navigation ... over all the Country objects in the database. For a country with no capital city, such as Nauru, c.capital
2

Database Server

embedded mode, ObjectDB is integrated as a library and runs within the application process, which is much more efficient. As a result, embedded mode should be preferred when possible. For example ... Server tool is bundled in the objectdb.jar file. You can run it from the command line as follows
0

Step 7: Run the Spring Web App

the content of the index.jsp file (which serves as the default front page) with the following redirection to the controller path: <jsp:forward page="guest.html" /> If Tomcat 6.0 is installed as ... the [Project Explorer] window), selecting Run As > Run on Server, selecting the Tomcat 6.0 server
0

[ODB1] Chapter 1 - About ObjectDB

(for example, as a result of special customer needs or requests) can be done without modifying code. The JDO ... ObjectDB as a class library, so no server process is needed in another JVM. The database file is accessed ... . It supports all ObjectDB features and both the embedded database operating mode as well as the client-server

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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