Creating a schema from entity beans 6 Enter (Free web hosting music)
Creating a schema from entity beans 6 Enter an EJB QL statement. An EJB QL query is a string that must contain a SELECT clause and a FROM clause, and may include a WHERE clause. Some select method s inspector may have additional fields, depending on your target application server. If you need help filling in these additional fields, consult your application server s documentation. For more information about writing queries with the EJB 2.0 query language, see Enterprise JavaBeans Query Language in the J2EE tutorial on the Sun web site at http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/EJBQL.html. Also consult your application server documentation. Adding a home business method Note Only EJB 2.0 components can have home business methods. EJB 2.0 components (both CMP and BMP) can have business methods, also called ejbHome methods, declared in the home interface. To create a home business method, 1 Right-click the entity bean representation in the EJB designer and choose Add| Method or click the Add icon on the toolbar and choose Method on the menu that appears. 2 Specify the name of the method, its return type, and its parameters as you would when creating any other method using the method s inspector. 3 Specify the Interface value as Home, Local Home, or Home/Local Home. When you specify a home interface, the EJB designer declares the method in the home interface(s) you specified with the method name you specified. It also adds the method to the bean class with a prefix of ejbHome. Like other business methods, you must then add the logic required to implement the ejbHome method in the bean class. Creating a schema from entity beans You can use an entity bean in the EJB designer to create a schema to add to a data source in the structure pane. To create a schema from entity beans, 1 Select the entity bean(s) you want to use to create a schema. 2 Right-click the EJB designer pane and choose Create Schema From Selection or click the Create Schema From Selection icon on the toolbar. 3 Select the data source you want the schema added to and choose OK. Exporting a data source If you ve modified a data source, you might want to use it to create database tables that reflect the changes you ve made. Right-click the data source s node in the structure pane and choose Export To SQL DDL (Data Definition Language.) In the dialog box that appears, specify a name for the file. You can then use that file to create a database that uses your modified data source. 60 Developing Applications with Enterprise JavaBeans
We are here to provide web hosting at an affordable rate for the online Christian community. The term “Christian” is used by various groups with diverse beliefs to describe themselves. Some people, including many born-again Christians, use a fairly specific definition of “Christian”. They believe that in order to be a Christian, one must follow Jesus, and that the proof of this is found in agreeing to and following the doctrines set forth in the Bible. Others who refer to themselves as Christians require only that one believes that Jesus is the Son of God, that he died, and that he was resurrected from the dead, to claim the term Christian.Check Christian Web Hosting section.