ObjectDB Database Search

, please?... Thanks! Here it is the persistence.xml config: com.objectdb.jpa. Provider The following error appears ... .objectdb.jpa. Provider to javax.persistence.spi.PersistenceProvider at java.lang.Class.cast(Class.java ... . Provider to javax.persistence.spi.PersistenceProvider at java.lang.Class.cast(Class.java:3014) at org

.PersistenceException: No Persistence provider for EntityManager I'm using the latest ObjectDB 2.6.2.b03 ... at post #13 on that thread. support Support I can't modifiy the objectdb.jar... its provided in ... an OSGi Service which provides the access to the ObjectDB database Plugin project client - uses the OSGi

JPA Enum Constant in javax.persistence.ConstraintMode PROVIDER _DEFAULT Use the provider -defined default behavior. Since: JPA 2.1

.persistence.PersistenceException: No Persistence provider for EntityManager named objectdb ... in order to support e.g. Declarative Services and possibly provide  EntityManagerFactory as

My hosting provider recently had a very brief 'scheduled down time'. After which I was getting objectdb exceptions due to max persistent types in database ( 10). Turns out that hosting provider had migrated machines. Luckily I was able to deal with it quickly. I continue to believe

to completely omit the objectdb.conf when providing (links to) mini test projects ... with no external  objectdb.conf . You only have to provide an  objectdb.conf with test cases

JPA Static Field in javax.persistence.Persistence PERSISTENCE_ PROVIDER This final String is deprecated and should be removed and is only here for TCK backward compatibility Since: JPA 1.0

provider for EntityManager named $objectdb/myDB.odb at javax.persistence.Persistence

Do you have any preferred way of finding out whether ObjectDb is my EntityManager's JPA Provider ? I know there are problems with using getDelegate ( http://weblogs.java.net/blog/ss141213/archive/2009/05/be_careful_whil.html ) but on the other hand unwrap is not very portable ( https

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(); Because the results are managed entity objects they have all the support that JPA provides ... with multiple SELECT expressions, where custom result objects can provide an object oriented ... ; provides several ways for setting the SELECT clause. Single Selection Setting a single expression

The JPA Metamodel API provides the ability to examine the persistent object model and retrieve ... that Java reflection provides for general Java types. The Metamodel Interface The main interface of the JPA ... . getMetamodel (); The Metamodel interface provides several methods for exploring user defined persistable

are always polymorphic. JPQL does not provide a way to exclude descendant classes from iteration ... variables represent iteration over all the database objects of a specified entity type. JPQL provides ... of transparent navigation and fetch  makes it very easy to use, since it provides the illusion

identifier that serves as the parameter name. JPA does not provide an API for defining the parameters ... the different notation, named parameters and ordinal parameters are identical. Named parameters can provide ... as is. Instead of a simple country name, a malicious user may provide JPQL expressions that change

THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE ("AGREEMENT ... are provided by any Contributor that the Program does not infringe the patent or other intellectual ... to distribute the Program in object code form under its own license agreement, provided that: a) it complies

mode select File Open C/S Connection...  and provide host, port, username and password ... Windows The Explorer provides two types of viewer windows for viewing the database data. The Table ... windows provide easier navigation. Because every reference between two database objects is represented by

tool. Recording provides an alternative (which is sometimes more efficient) to recovery ... for backup purposes and for debugging (by providing the ability to reproduce problems by replay ... some ORM JPA providers ) is defined in the entity class or not. It can be disabled by setting the 

. Redistribution and use in source and binary forms, with or without modification, are permitted provided ... the documentation and/or other materials provided with the distribution. Neither the name of the Eclipse Foundation ... this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT

. UNSPECIFIED - handled differently by different JPA providers . In ObjectDB the UNSPECIFIED value ... the Shared Cache The shared cache (when enabled) provides the following functionality automatically ... provides two properties that can be used in order to change the default behavior. javax.persistence

The JPA Criteria API provides an alternative way for defining JPA queries, which is mainly useful ... about criteria query clauses are provided in the following page sections: SELECT clause ( select , distinct ... the Query Expressions pages. Specific details about criteria query expressions are provided in the 

and HAVING in Criteria Queries The CriteriaQuery interface provides methods for setting the GROUP BY ... . gt (cb. count (c), 1)); The CriteriaBuilder  interface provides methods for building ... with the WHERE clause - two forms of the having method are provided . One having form takes an 

.objectdb.jpa. Provider META-INF/mappingFile.xml packedEntity.jar sample.MyEntity1 sample.MyEntity2 ... . It may also have optional sub elements: The provider element indicates which JPA implementation should be used. ObjectDB is represented by the com.objectdb.jpa. Provider string. If not specified, the first JPA

well as how to use the JPA Criteria API, which provides an alternative way for building queries in JPA, based on JPQL. The first section describes the API that JPA provides for using dynamic and static ... , but does not provide specific details on the JPQL query language itself: The Java Persistence Query

, so they are useful only for classes that are also in use with an ORM JPA provider (such as ... because a version field is inherited by subclasses. Unlike ORM JPA providers , ObjectDB always manages

.languages is TRUE if languages does not contain 'English' . [NOT] IN The [NOT] IN operator provides ... . The CriteriaBuilder interface provides factory methods for building these expressions, as shown in the following

The Java Persistence API (JPA) provides various ways to retrieve objects from the database. The retrieval of objects does not require an active transaction because it does not change the content ... getPersistenceUtil method. It provides two isLoaded methods - one for checking an entity object

itself and are demonstrated above. The two optional elements,  lockMode and hints ,  provide static replacement ... queries. But, because mapping files are useful mainly for Object Relational Mapping (ORM) JPA providers

class, and accordingly, provides the ability to store Point objects in the database and retrieve ... when an entity object is persisted. Chapter 2 provides additional information on how to define entity

This section contains miscellaneous JPA types. The PersistenceUtil and PersistenceUnitUtil interfaces provide general utility methods: The Cache interface and the CacheRetrieveMode and CacheStoreMode enum types serve in managing the EntityManagerFactory's shared (level 2) cache: Other enum types are provided for setting of various JPA operations:

can be built dynamically at runtime. The JPA Criteria API provides an alternative way for building dynamic ... also provides a way for building static queries, as named queries , using the @NamedQuery

Persistence fields can either be accessed by JPA directly (as fields) or indirectly (as properties and get/set methods). JPA 2 provides an annotation and an enum for setting the access mode: More details are provided in chapter 2 of the ObjectDB manual.

Working with the Java Persistence API (JPA) consists of using the following interfaces: Overview A connection to a database is represented by an EntityManager instance, which also provides ... . a pool of sockets), provides an efficient way to construct multiple EntityManager instances

are more portable to ORM JPA implementations and provide better automatic change tracking support. UPDATE Queries UPDATE queries provide an alternative way of updating entity objects in the database. Modifying

are provided in the Storing Entities section. Entity objects retrieved from the database by ... deletion are provided in the Deleting Entities section. The last state, Detached , represents entity

(which is required by some ORM JPA providers ) is defined in the entity class or not. Pessimistic Locking The main ... _FORCE_INCREMENT) . Locking during Retrieval JPA 2 provides various methods for locking entity objects

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 ... . When database performance matters - ObjectDB Software provides the most effective solution. ObjectDB

the [ Provider and Database] step just click Finish to generate a default persistence.xml file ... with the following new content: com.objectdb.jpa. Provider Now ObjectDB should be used as a JPA provider

entity class. In the [ Provider and Database] step click Finish to generate a default persistence.xml ... file with the following new content: com.objectdb.jpa. Provider guest.Guest Now ObjectDB should be used as a JPA provider with the specified database url. The next step is adding a Spring DAO Component class that will manage Guest entity objects.

to the persistence.xml file: com.objectdb.jpa. Provider Now ObjectDB should be used as a JPA provider

.transaction jta 1.1 javax.servlet servlet-api 2.5 provided javax.servlet.jsp jsp-api 2.1 provided org

;      javax.servlet    servlet-api    2.5    provided        javax.servlet.jsp    jsp-api    2.1    provided

and paste to copy the following content to the  persistence.xml file: com.objectdb.jpa. Provider Now ObjectDB should be used as a JPA provider with the specified database url. The next step

SQL for RDBMS. It provides object retrieval from the database according to a specified selectioPlan ... must be provided before query execution (explicitly or implicitly by specifying a candidate class ... more generic. Parameter values are provided when the query is executed so that the same query

on those respective operating systems are also provided . Running the Executable JAR directly The Explorer ... the Explorer . Using Viewer Windows The Explorer provides two types of viewer windows for exploring ... windows is provided in later sections. Section 9.3 explains how to use viewer windows to edit

about metadata files, including their location and naming rules, are provided in chapter 4 ... can be provided in the metadata file (as shown in chapter 4 ), but this minimal form is sufficient ... .1 ). A detailed explanation of this code is provided in Chapter 5 . Lines 31-32 A transaction

the server. More details on server configuration and operation are provided later in this chapter. The Server ... files. Providing database server support on a shared server could be useful in a shared web hosting ... are provided . If an authentication of the client machine by the server is also required, a Keystore file

of persistent types is available at section 3.2 ). ObjectDB provides an additional storing method ... defined persistent classes are not (more details are provided in section 4.3 and section 4.4 ... ). If obj is persistent, i.e. isPersistent(obj) returns true , the other methods provide more details

. ObjectDB has a Database Explorer The ObjectDB database explorer, which is provided ... Guest Book sample provided with ObjectDB demonstrates a simple web application that uses ObjectDB ... , provides the highest flexibility for web applications and advanced features, like remote database

This chapter describes three essential interfaces for using JDO. The PersistenceManagerFactory interface represents a factory of database connections. Its main role is to provide ... and deleting database objects, are provided in the next chapter ( Chapter 6 ). 5.1  javax