ObjectDB Database Search

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Entity is not related to ObjectDB, but i get exception from ObjectDB

.as. ee .component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor. java :50 ... (InterceptorContext. java :288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final] at org.jboss.as. ee .component.TCCLInterceptor.processInvocation(TCCLInterceptor. java :45) [jboss-as- ee -7.1.1.Final.jar:7.1.1.Final] at org

Error reading UTF string

. ee .component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor. java :50 ... (InterceptorContext. java :288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final] at org.jboss.as. ee .component.TCCLInterceptor.processInvocation(TCCLInterceptor. java :45) [jboss-as- ee -7.1.1.Final.jar:7.1.1.Final] at org

Problem to use find method on an abstract Class: AbstractMethodError is thrown

.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor. java :50) [jboss-as- ee -7.1.1.Final.jar:7.1.1 ... (TCCLInterceptor. java :45) [jboss-as- ee -7.1.1.Final.jar:7.1.1.Final] at org.jboss.invocation.InterceptorContext ... .Final.jar:1.1.1.Final] at org.jboss.as. ee .component.ViewService$View.invoke(ViewService. java :165) [jboss

javax.transaction.Synchronization with Java SE 10.0.1

the Synchronization interface. Are you using -add-modules java .se. ee ? If yes, try removing it. See this thread on Stackoverflow. support Support I was not using -add-modules java .se. ee , but -add-modules java .corba ... Greetings, I am trying to get my app running on  Java 10 (up to now it runs on Java 8

What are the system requirements for using ObjectDB?

ObjectDB requires Java 8 or later. As a pure Java application, ObjectDB should be able to run on any platform that supports the Java Standard Edition. Either the Java Development Kit (JDK) or the Java Runtime Environment (JRE) can be used. A version of ObjectDB for .NET is currently under development.

Numbers in JPQL and Criteria Queries

( % ) and bitwise complement ( ~ ) operators, which are supported in Java and JDO. JPA follows Java ... , similar to the Java modulo operator ( % ). ObjectDB also supports the % operator as an extension ... is of that same type. If the operands have different types, Java numeric promotion rules apply. For example

Defining a JPA Entity Class

class is a POJO (Plain Old Java Object), an ordinary Java class that is marked (annotated) to indicate ... class is an ordinary Java class. The only JPA-specific addition is the @Entity annotation ... to the NotSerializableException that Java throws when you try to serialize a non-serializable object. However, all JPA

JPA Metamodel API

about managed classes, persistent fields, and properties, similar to how Java reflection provides this capability for general Java types. The Metamodel interface The main interface of the JPA Metamodel ... is a thin wrapper for Class and provides only two methods: // Get the underlying Java representation of the type

Comparison in JPQL and Criteria API

/SQL Set 2: Java /JDO Less Than Less Than or Equal To = Equal To = == Not Equal To != The main ... . != ) operators. JPQL follows SQL notation, while Java uses its own notation, which is also used by JDOQL ... standard Java logic. For example, null == null evaluates to true . All other operators

JPA Metamodel Attributes

: COLLECTION , SET , LIST , or MAP . Represents an attribute typed as a generic java .util.Collection . Represents an attribute typed as a java .util.Set , implying unique elements without a specific order. Represents an attribute typed as a java .util.List , supporting ordered collections and index-based

JPA Criteria FROM and JOIN

to an association typed as a java .util.Collection . Represents a join to an association typed as a java .util.Set . Represents a join to an association typed as a java .util.List . It provides support for list indices. Represents a join to an association typed as a java .util.Map . It provides access

JPA Entity Fields

. This behavior is similar to transient fields in Java , which don't participate in serialization. Static ... either the Java transient modifier (which also affects serialization) or the JPA @Transient ... declared type, including a generic java .lang.Object , as long as the actual runtime value

Date and Time in JPQL and Criteria Queries

when the query is executed: CURRENT_DATE : Returns the current date as a java .sql.Date instance. CURRENT_TIME : Returns the current time as a java .sql.Time instance. CURRENT_TIMESTAMP : Returns the current timestamp (date and time) as a java .sql.Timestamp instance. Extracting date parts JPA does not define

JPA Query Structure (JPQL / Criteria)

operates on Java classes and objects. For example, a JPQL query can retrieve entities, unlike SQL ... and easier to use in Java applications. JPQL Query Structure Like SQL, a JPQL SELECT query consists ... ). The exceptions, where JPQL is case-sensitive, include Java source elements such as the names of entity classes

Database Doctor

(for example, a bug in the operating system, Java , or ObjectDB). Copying a database file ... Doctor tool is included in the objectdb.jar file. You can run the tool from the command line: $ java -cp ... , specify two command-line arguments: $ java -cp objectdb.jar com.objectdb.Doctor old.odb new.odb

ObjectDB 2.9 Developer's Guide

Welcome to ObjectDB for Java /JPA Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JPA ( Java Persistence API). The main purpose of this guide is to make ... this guide, but a strong background and understanding of the Java language is essential

Is ObjectDB a NoSQL Database?

, using two standard Java query languages: JPQL ( Java Persistence Query Language) and JDOQL (JDO ... , but they are easier to use in object oriented languages such as Java . In addition, unlike most other NoSQL databases

Posting Sample Code

. Whenever possible: Use a single Java file with one main class + static inner classes for entity ... test; import java .util.*; import jakarta.persistence.*; public final class MyTestCase {    ... a persistence unit, An entity or IdClass class should implement the java .io.Serializable interface).

Paths and Types in JPQL and Criteria API

a null value. In Java , a NullPointerException is thrown on any attempt to access a field or a method ... to the getClass method of java .lang.Object in Java . The following query returns the number of all the entities

About Us

ObjectDB Software develops, markets and supports the ObjectDB Object-Oriented Database Management System (ODBMS). ObjectDB Software is the market leader in providing a very high performance persistence solution for Java , based on the Java Persistence API (JPA) and the Java Data Objects (JDO

Chapter 4 - JPA Queries (JPQL / Criteria)

the expressions used to build JPQL and criteria query clauses: ObjectDB also supports the Java Data Objects (JDO) Query Language (JDOQL), which is more Java -oriented and is based on Java syntax. JDOQL is not covered in this manual.

Database Transaction Replayer

is bundled in the objectdb.jar file. You can run it from the command line: $ java -cp objectdb.jar com ... . You can also run the Replayer up to a specified transaction. For example: $ java -cp objectdb.jar com

FROM clause (JPQL / Criteria API)

The FROM clause declares query identification variables for iterating over objects in the database. A query identification variable is similar to a variable in a Java enhanced for loop ... Country c Reserved identifiers The name of a JPQL query variable must be a valid Java identifier

Is ObjectDB better than competing object databases?

support for the Java Persistence API (JPA). It also supports a more recent and advanced version of the Java Data Objects (JDO) API than competing object databases. By using a standard API such as JPA

Query Parameters in JPA

as a pure date (no time): query. setParameter ("date", new java .util.Date(), TemporalType . DATE ); Because TemporalType . DATE represents only the date, the time part of the java .util.Date instance

Can I use ObjectDB to access a relational database?

To access relational databases using the Java Persistence API (JPA) you will need an Object Relational Mapping (ORM) tool, such as Hibernate, TopLink, EclipseLink, Open JPA or DataNucleus. The DataNucleus ORM implementation supports also the Java Data Objects (JDO) API. ObjectDB is a full featured

Chapter 6 - Configuration

an argument to the JVM: $ java "-Dobjectdb.home=/odb" ... The configuration file By default ... "); It can also be set as an argument to the JVM: $ java "-Dobjectdb.conf=/my/objectdb.conf

Online Backup

: Query backupQuery = em.createQuery("objectdb backup"); backupQuery.setParameter("target", new java ... . If you specify the target argument as a java .io.File instance in a client-server connection, the backup

Step 2: Define a JPA Entity Class

the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Projects] window) and selecting New Java Class ... Enter Guest as the class name - use exactly that case sensitive class name ... code: package guest; import java .io.Serializable; import java .sql.Date; import javax.persistence.Entity

Step 2: Entity Class and Persistence Unit

the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Package Explorer] window ... objects in the database was created in the project (under Java Resources: src guest). Use copy and paste to replace the new source file content with the following code: package guest; import java .io

Step 2: Define a JPA Entity Class

the [New Java Class] dialog box, e.g. by right clicking the tutorial package node (in the [Projects] window) and selecting New Java Class ... Enter Point as the class name - use exactly that case sensitive ... and paste to fill the new source file with the following content: package tutorial; import java .io

Step 2: Define a JPA Entity Class

the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Package Explorer] window ... and paste to replace the new source file content with the following code: package guest; import java .io.Serializable; import java .sql.Date; import javax.persistence.Entity; import javax.persistence

Step 4: Add a Servlet Class

  New Other... Web Servlet and clicking  Next . The Java package name should be guest ... : package guest; import java .io.IOException; import java .util.List; import javax.servlet.ServletException

NetBeans/JPA Web Application Tutorial

This is the NetBeans version of the  JPA Web App tutorial. It demonstrates how to create and run a database driven Java web application in NetBeans - using Tomcat 6 Apache Tomcat ... the following software: Java JDK (6.0 or above). NetBeans - Java or All bundle The last version of ObjectDB

Step 3: Define a Spring DAO Component

) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right ... Java Class... . Enter  GuestDao as the class name - use  exactly that case sensitive class ... replace the content of the new source file with the following code: package guest; import java .util.List

NetBeans/JPA Spring MVC Web Tutorial

This is the NetBeans version of the Spring MVC and JPA tutorial. It demonstrates how to create and run a full Java  Spring MVC (Model View Controller) web application in ... software: Java JDK 6.0 (or above). NetBeans ( Java or All bundle). The tutorial was written

Step 4: Add a Servlet Class

... Enter GuestServlet as the class name - use exactly that case sensitive class name. The Java ... of the new source file with the following code: package guest; import java .io.IOException; import java

JPA Web App Tutorial - Maven Project

The  JPA Web Application tutorial provides step by step instructions on how to build a simple Java /JPA database driven web application (for Tomcat / Jetty) in  Eclipse or  NetBeans ... and install ObjectDB or a Java web server - Maven will download the ObjectDB jar and the Jetty

Step 2: Define a JPA Entity Class

; import java .io.Serializable; import javax.persistence.*; @Entity public class Point implements ... (and its annotations) - the Point class is an ordinary Java class. The next step is adding to the project

Step 7: Run the Spring Web App

automatic enhancement (weaving) in Tomcat it has to be run with ObjectDB as a Java agent ... without specifying a Java agent. Since we are using ObjectDB in embedded mode - the database file

Step 2: Entity Class and Persistence Unit

to replace the new source file content with the following code: package guest; import java .io.Serializable; import java .sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue

Step 4: Run the Application

You can now run the application by right clicking the Main. java file (in the [ Package Explorer ] window) and selecting Run As Java Application . The expected output in the Eclipse [Console] window, is: Total Points: 1000 Average X: 499.5 (0,0) (1,1) (2,2) (3,3) : : (998,998) (999,999

Step 4: Add a Controller Class

In this step we will add a Spring Controller to manage guestbook web requests: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Java Class ... Enter GuestController as the class name - use exactly that case sensitive class

Step 2: Entity Class and Persistence Unit

to replace the new source file content with the following code: package guest; import java .io.Serializable; import java .sql.Date; import javax.persistence.Entity; import javax.persistence

Step 3: Define a Spring DAO Component

Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right ... replace the content of the new source file with the following code: package guest; import java .util

Spring MVC JPA Tutorial - Maven Project

The  Spring MVC JPA tutorial provides step by step instructions on how to build a simple Java /JPA Spring MVC database driven web application in  Eclipse or  NetBeans . Building a new ... and install ObjectDB or a Java web server - Maven will download the ObjectDB jar and the Jetty

Step 4: Add a Servlet Class

... Enter GuestServlet as the class name - use exactly that case sensitive class name. The Java ... of the new source file with the following code: package guest; import java .io.IOException; import javax

Step 4: Add a Servlet Class

; New Other... Web Servlet and clicking  Next . The Java package name should be guest. Enter ... guest; import java .io.IOException; import javax.ejb.EJB; import javax.servlet.ServletException

Getting Started with JPA and NetBeans

; x and  y . For this tutorial, besides the Java JDK (8 or above) and the NetBeans IDE (any bundle that includes Java is expected to work), you only need to download and extract the ObjectDB

Which API should I use - JPA or JDO?

You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API. Both share similar architecture, design and abilities. When to prefer JPA JPA ... databases and it is probably the most popular Java API for object databases today.