ObjectDB Database Search

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Apache License, Version 2.0, January 2004

or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor ... the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or

Eclipse Public License - v 1.0

Contributor: i) changes to the Program, and ii) additions to the Program; where such changes and/or additions to the Program originate from and are distributed by that particular Contributor ... anyone acting on such Contributor's behalf. Contributions do not include additions to the Program

JPA Metamodel API

all types whose instances are already stored in the database. Three additional methods retrieve ... "); The ManagedType interface defines additional methods to return attributes of Collection , List , Set ... . getDeclaredVersion (Long.class); Additional methods are defined in IdentifiableType to support

JPA Optimistic and Pessimistic Locking

.persistence.lock.timeout", 4000); In addition , the hint can be set for a specific retrieval operation or ... Lock Modes In addition to the two main pessimistic modes, PESSIMISTIC_WRITE and PESSIMISTIC_READ (which are discussed above), JPA defines additional lock modes that you can specify as arguments

Query Parameters in JPA

Parameters (?index) In addition to named parameters, which use the :name format, JPQL also supports ordinal ... of a simple country name, altering the query and potentially compromising the system. In addition ... parameters. In addition , there are nine methods for extracting parameter values from a query

Setting and Tuning of JPA Queries

and throw a LockTimeoutException if the lock cannot be acquired. Query hints Additional You can apply additional settings to queries by using hints. Supported query hints ObjectDB supports the following

JPA Persistable Types

fields . In addition , only entity class instances preserve their identity and are stored ... ` or instances of persistable types. In addition to the collection and map classes that are fully

FROM clause (JPQL / Criteria API)

an additional type of identification variable, a join variable, which represents a more limited ... range variable that serves as a root and additional join variables that are bound to path expressions

Numbers in JPQL and Criteria Queries

: + ( addition ), - (subtraction), * (multiplication), and / (division). ObjectDB also supports the modulo ... = country. get ("population"); Expression param = cb. parameter (Integer.class); // Addition

ObjectDB License

(for which licenses have been purchased) does not require additional separate licenses. Purchase ... organization in one building, and in addition also covers installation of ObjectDB on: Home computers

JPA Query API

a TypedQuery instance, you must pass the expected result type as an additional argument, as shown for q2 ... The following pages explain how to define and run queries in JPA: In addition , the following pages describe the syntax of the JPA Query Language (JPQL):

JPA Criteria Query Expressions

of a query parameter used for binding runtime values. Advanced expressions Additional interfaces

ObjectDB License Agreement [ver. 2.0.4]

prevail over any conflicting or additional terms of any oral or written quote, acknowledgement

Detached JPA Entities

an entity. In addition , when a managed entity is serialized and then deserialized, the deserialized

Strings in JPQL and Criteria Queries

(path, "a%"); // additional methods take also an escape character // LENGTH(str) Expression length

Collections in JPQL and Criteria Queries

provides an additional method for checking if a specified element is contained in a collection. JPA

Logical Operators in JPQL and Criteria API

or large Additional factory methods are available that accept a variable number of predicates

JPA Query Expressions (JPQL / Criteria)

: * (multiplication), / (division), + ( addition ), and - (subtraction) Comparison operators

JPA Extended API Reference Guide

dynamically, build type-safe queries, and optimize database fetching. Lists additional dynamic

JPA Queries

; EntityManagerFactory or   EntityManager  using the getCriteriaBuilder method. Additional

JPA Class Enhancer

commas or spaces. In addition , a class loader for loading classes for enhancement can be specified as

Privacy Policy

to provide Us additional Personal Data that you are allowed to share with Us using private support tickets

What are the main benefits of using ObjectDB?

multiple values (even for a simple data structure such as a collection of strings). In addition

Defining a JPA Entity Class

class is an ordinary Java class. The only JPA-specific addition is the @Entity annotation

Database Schema Evolution

Modifications to entity classes that do not change their persistent field definitions (their schema) are transparent to ObjectDB. This includes adding, removing, or modifying constructors, methods, and non-persistent fields. However, ObjectDB detects additions , deletions, and modifications

Is ObjectDB a NoSQL Database?

, but they are easier to use in object oriented languages such as Java. In addition , unlike most other NoSQL databases

Running JPA Queries

addition , the Query interface defines a method for running DELETE and UPDATE queries: Query

JPA Shared (L2) Entity Cache

that use many short-term EntityManager instances. In addition to the EntityManager 's L1 cache

Comparison in JPQL and Criteria API

(the JDO Query Language). ObjectDB supports both forms. In addition to the different notation

ObjectDB Object Database Features

from failure by using a  recovery file and double writing. Additional recovery layer

ORDER BY clause (JPQL / Criteria API)

expression is the primary sort key. Additional expressions act as secondary sort keys, used to order

General Settings and Logging

output and standard error, respectively, in addition to the log file. The element Old log files

JPA Criteria FROM and JOIN

other query components other than in additional fetches. The only purpose is pre-fetching

jakarta.persistence.PessimisticLockScope

In addition to the locking behavior specified for NORMAL , element collections and relationships ... is otherwise mapped to a secondary table, this entails locking the row(s) for the entity instance in the additional ... (JPA) 1.0 Synthetic Public Static Methods: values(), valueOf(String) Additional JDK methods inherited

jakarta.persistence.LockModeType

successfully. Lock modes must always prevent the phenomena P1 and P2. In addition , obtaining a lock ... (JPA) 1.0 Synthetic Public Static Methods: values(), valueOf(String) Additional JDK methods inherited ... (), toString(), valueOf(Class,String) Additional JDK methods inherited from java.lang.Object clone(), equals

jakarta.persistence.PersistenceUnitTransactionType

(), valueOf(String) Additional JDK methods inherited from java.lang.Enum clone(), compareTo(E ... (ObjectInputStream), readObjectNoData(), toString(), valueOf(Class,String) Additional JDK methods ... (), notifyAll(), toString(), wait(), wait(long), wait(long,int), wait0(long) Additional JDK methods

jakarta.persistence.FlushModeType

) Additional JDK methods inherited from java.lang.Enum clone(), compareTo(E), describeConstable ... (ObjectInputStream), readObjectNoData(), toString(), valueOf(Class,String) Additional JDK methods inherited ... (), toString(), wait(), wait(long), wait(long,int), wait0(long) Additional JDK methods inherited from

jakarta.persistence.GenerationType

Public Static Methods: values(), valueOf(String) Additional JDK methods inherited from java.lang ... (Class,String) Additional JDK methods inherited from java.lang.Object clone(), equals(Object), finalize ... ), wait0(long) Additional JDK methods inherited from java.lang.constant.Constable describeConstable

jakarta.persistence.InheritanceType

(), valueOf(String) Additional JDK methods inherited from java.lang.Enum clone(), compareTo(E ... (), readObject(ObjectInputStream), readObjectNoData(), toString(), valueOf(Class,String) Additional JDK methods ... (), notifyAll(), toString(), wait(), wait(long), wait(long,int), wait0(long) Additional JDK methods

Step 4: Run the Application

directory. Running the application again will use the existing database file to store an additional

Spring MVC and JPA Tutorial

an ObjectDB database. This tutorial is available in the following versions: In addition , the demonstrated application is available as a Maven project:

Step 6: Set the Spring XML

to the Spring dispatcher servlet. Additional spring configuration is set in another XML file

Step 6: Set the Spring XML

above routes web requests with .html suffix to the Spring dispatcher servlet. Additional spring

Step 1: Create a Java EE 6 Web Project

and the Download additional server adapters link. Follow the instructions and specify the path

JPA Tutorials

by step instructions on how to create the sample applications. In addition , the sample applications

Java EE Web Tutorial

. This tutorial is available in the following versions: In addition the demonstrated application is available as a Maven project:

Step 4: Run the Application

the existing database file to store an additional 1000 objects. You can view the content of the database file

JPA Web Application Tutorial

. This tutorial is available in the following versions: In addition the demonstrated application is available as a Maven project:

Getting Started with JPA

versions: In addition the demonstrated application is available as a Maven project:

Which API should I use - JPA or JDO?

the primary API, and if necessary, switch to JDO as a secondary API for special additional features