ObjectDB Database Search

provide an alternative way of updating entity objects. Unlike SELECT queries, which are used ... - the executeUpdate method returns the number of objects that have been modified by the query. Selective Update ... , which is essential for updating selected entity objects, is supported. For example, the following

criteria queries, compound selections , expressions, predicates, orderings. Note that Predicate ... . Since: Jakarta Persistence (JPA) 1.0 CompoundSelection array ( Selection ... selections ) Create an array-valued selection item. Parameters: selections - selection items Returns: array-valued compound selection

Persistence (JPA) 1.0 Selection getSelection () Return the selection of the query, or null if no selection has been set. Inherited from AbstractQuery Returns: selection item. Since: Jakarta Persistence ... must be eliminated. Since: Jakarta Persistence (JPA) 1.0 CriteriaQuery multiselect ( Selection ... selections

;(e.g. " SELECT c FROM Country" ). Criteria Query API Building dynamic queries with a structure ... are organized in this reference into three groups. SELECT and ORDER BY elements (including tuples): FROM clause

for both Query and TypedQuery : Query q1 = em. createQuery (" SELECT c FROM Country c"); TypedQuery q2 = em. createQuery (" SELECT c FROM Country c", Country.class); In the above code, the same JPQL query

: - the type of the selection item. Super Interfaces: AbstractQuery , Expression , CommonAbstractCriteria , Selection , TupleElement The Subquery interface defines functionality that is specific to subqueries. A subquery has an expression as its selection item. Since: Jakarta Persistence (JPA) 2.0 Public

, From , Path , FetchParent , Expression , Selection , TupleElement The PluralJoin interface defines ... query construction. Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

referenced by the path Super Interfaces: Expression , Selection , TupleElement Represents a simple ... how to use Path . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item

Interfaces: PluralJoin , Join , From , Path , FetchParent , Expression , Selection , TupleElement ... Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from Selection

: - the entity type referenced by the root Super Interfaces: From , Path , FetchParent , Expression , Selection ... . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

, From , Path , FetchParent , Expression , Selection , TupleElement The SetJoin interface is the type ... that has been specified as a Set . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

: PluralJoin , Join , From , Path , FetchParent , Expression , Selection , TupleElement The CollectionJoin ... Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from Selection

: - the type of the selection item Super Interfaces: Selection , TupleElement The CompoundSelection interface defines a compound selection item (a tuple, array, or result of a constructor). Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias

, From , Path , FetchParent , Expression , Selection , TupleElement The ListJoin interface is the type ... that has been specified as a List . Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

: - the source type - the target type Super Interfaces: Path , FetchParent , Expression , Selection ... to the type. Since: Jakarta Persistence (JPA) 2.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns

, Expression , Selection , TupleElement A join to an entity, embeddable, or basic type. Since: Jakarta ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

: Expression , Selection , TupleElement The type of a simple or compound predicate: a conjunction or ... how to use Predicate . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same

Parameters: - the type of the parameter expression Super Interfaces: Parameter , Expression , Selection ... Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from

.persistence.criteria.CriteriaBuilder.Case Super Interfaces: Expression , Selection , TupleElement ... which they are specified. Since: Jakarta Persistence (JPA) 1.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

.persistence.criteria.CriteriaBuilder.In Super Interfaces: Predicate , Expression , Selection ... Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Inherited from Selection Parameters

.persistence.criteria.CriteriaBuilder.Coalesce Super Interfaces: Expression , Selection , TupleElement ... otherwise. Since: Jakarta Persistence (JPA) 1.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned

: - the type of the expression Super Interfaces: Selection , TupleElement Type for query expressions ... how to use Expression . Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection

.persistence.criteria.CriteriaBuilder.SimpleCase Super Interfaces: Expression , Selection , TupleElement ... which they are specified. Since: Jakarta Persistence (JPA) 1.0 Public Instance Methods Selection alias ( String name ) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or

project in NetBeans: Select   File Open Project... . Select the  guestbook-jee6 directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6

and selecting New Data Set . Select the data source that was created in the previous step (e.g. ObjectDB ... value in a specified range: SELECT p.x as x, p.y as y FROM Point p WHERE p.x BETWEEN :low AND :high Use

: Select   File Open Project... . Select the  guestbook-spring directory and click  Open Project . Run the project: Select   Run Run Main Project... (or  F6 ). Choose or define

editor (by right clicking and selecting   Open With Text Editor or by double click ... that file: Right click the WEB-INF node in the [Package Explorer] window, select   New Other... XML

In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window),  selecting ... of guests: List guestList = em.createQuery( " SELECT g FROM Guest g", Guest.class).getResultList

] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting New ... as the class name - use exactly that case sensitive class name. Click Next and then Select

We start by creating a new Maven-WTP dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using  File New Project... Select   Maven Maven Project and click  ... ; maven-archetype-webapp as a filter, select   maven-archetype-webapp in the artifact list and click

clicking and selecting Edit or by double click and then moving to the XML tab in the editor window ... , select New Other... and then choose the XML category, XML Document and click Next . Enter spring

We start by creating a new Maven web project in NetBeans: Open the [New Project] dialog box, e.g. by using File New Project... Select Maven Maven Web Application and click Next . Choose a Project Name (e.g. Guestbook ) and select Java EE 5. Enter Maven Group Id (e.g. com.objectdb.tutorial.spring

We start by creating a new Java EE dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select GlassFish Server Open Source Edition 3 (Java EE 6) as the Target

) and selecting New Entity Class ... (or New Other... Persistence Entity Class and clicking Next ). Enter ... clicking and selecting Edit or by double click and then moving to the Source or XML tab in

node (in the [Projects] window), selecting New Other... Java EE (or Enterprise JavaBeans) Session ... getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class

clicking the guest package node (in the [Projects] window under Source Packages) and selecting New ... () { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class); return

Connections to the database are represented in BIRT as data sources. To create an ObjectDB data source: Open the [New Data Source] dialog box by right clicking the Data Sources node in the [Data Explorer] window and selecting   New Data Source . Select ObjectDB Data Source from the list

) layout. Set the column number to 2 , number of details to 1 , select the data set (e.g. Points by X ... in the [Navigator] window and selecting Report Run Report :  

) and selecting   New Entity Class ... (or  New Other... Persistence Entity Class and clicking ... a text editor (by right clicking and selecting Edit or by double click and then moving to the XML

clicking the guest package node (in the [Package Explorer] window) and selecting   New Class ... getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM Guest g ORDER BY g.id", Guest.class); return

To use BIRT we need to create a BIRT Report project in Eclipse: Open the [New Project] dialog box, e.g. by using File New Project... Select Business Intelligence and Reporting Tools Report Project ... project: Right click the Reports node in the [Navigator] and select New Report . Enter the report

We start by creating a new Eclipse Dynamic Web Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Web Dynamic Web Project and click Next . Choose a Project Name (e.g. Guestbook ). Select Apache Tomcat v6.0 as the Target runtime. Note: You may have to add Tomcat 6

File] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Other... Select Web Web Application Listener and click Next . Enter GuestListener as the class name

Project] dialog box: Select Java Project and click Next . Choose a Project Name (e.g. Tutorial ) and click Next . In the Libraries tab, click Add External JARs... and select the objectdb.jar file from

node (in the [Package Explorer] window) and selecting New Class . The package name should be guest ... ); } // Retrieves all the guests: public List getAllGuests() { TypedQuery query = em.createQuery( " SELECT g FROM

In this step we will add a servlet to manage guestbook web requests: Open the [New Servlet] dialog box by right clicking the guest package node (in the [Projects] window) and selecting New Servlet ... .getTransaction().commit(); } // Display the list of guests: List guestList = em.createQuery( " SELECT g FROM

In this step we will add the JSP that generates the guestbook HTML output: Open the [New JSP File] dialog box by right clicking the WEB-INF node under the Web Pages node (in the [Projects] window) and selecting New JSP ... Enter guest as the jsp file name - use exactly that case sensitive class

You can run the application now by right clicking the Main node (in the [Projects] window) and selecting Run File . The expected output in the [Output] window, is: Total Points: 1000 Average X: 499.5 (0,0) (1,1) (2,2) (3,3) : : (998,998) (999,999) When you run the application for the first time

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 [Package Explorer] window) and selecting   New Class . The package name should be  guest . Enter  GuestController as

To store objects in an ObjectDB database using JPA we need to define an entity class: Right click on the project in the [Package Explorer] window and select New Class . Enter tutorial as the package name (case sensitive). Enter Point as the class name (case sensitive). Click Finish to create