2 Upgrading WebLogic Server 4.5 and 5.1 to Version 7.0

java -classpath %CLIENTCLASSES%;%CLASSPATH% examples.ejb.basic.statelessSession.Client

This command ensures that the EJB interfaces are referenced in your client’s classpath.

Steps for Converting an EJB 1.1 to an EJB 2.0

To convert an EJB 1.1 bean to an EJB 2.0 bean, you can use the WebLogic Server DDConverter utility.

BEA Systems recommends that you develop EJB 2.0 beans in conjunction with WebLogic Server 7.0. For 1.1 beans already used in production, it is not necessary to convert them to 2.0 beans. EJB 1.1 beans are deployable with WebLogic Server 7.0. If you do wish to convert 1.1 beans to 2.0 beans, see the DDConverter documentation in Programming WebLogic Enterprise JavaBeans for information on how to do this conversion.

The basic steps required to convert a simple CMP 1.1 bean to a 2.0 bean are as follows:

1. Make the bean class abstract. EJB 1.1 beans declare CMP fields in the bean. CMP

2.0beans use abstract getXXX and setXXX methods for each field. For instance, 1.1 Beans will use public String name. 2.0 Beans should use public abstract

String getName() and public abstract void setName(String n). With this modification, the bean class should now read the container-managed fields with the getName method and update them with the setName method.

2.Any CMP 1.1 finder that used java.util.Enumeration should now use java.util.Collection. CMP 2.0 finders cannot return java.util.Enumeration. Change your code to reflect this:

public Enumeration findAllBeans()

Throws FinderException, RemoteException;

becomes:

public Collection findAllBeans()

Throws FinderException, RemoteException;

2-22BEA WebLogic Server 7.0 Upgrade Guide

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BEA 7 manual Steps for Converting an EJB 1.1 to an EJB
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7 specifications

BEA 7, a significant product from BEA Systems, represents a cornerstone in enterprise application integration and service-oriented architecture. As a comprehensive solution for developing, deploying, and maintaining enterprise-level applications, it brings a host of features that cater to the needs of businesses seeking agility and reliability in their IT infrastructure.

One of the standout characteristics of BEA 7 is its robust support for service-oriented architecture (SOA). This enables businesses to create applications as loosely coupled services, facilitating easier integration and scalability. The platform's emphasis on middleware technologies allows organizations to streamline their IT operations, enhance interoperability, and reduce time to market for new applications.

BEA 7 includes a powerful application server that provides a reliable runtime environment for managing applications. Offering high availability and scalability, it can successfully handle the demands of high-volume transactions while ensuring optimal performance. The built-in clustering capability ensures that applications can remain operational even in the event of server failures, which is critical for mission-critical applications.

Another notable feature of BEA 7 is its capabilities for web services. With support for industry standards such as XML, SOAP, and WSDL, users can easily expose and consume services across diverse platforms. This allows businesses to take full advantage of an interconnected ecosystem and simplifies the process of integrating various applications and data sources.

Security is a paramount consideration in BEA 7, which includes strong authentication, authorization, and encryption mechanisms to protect sensitive data. The platform's comprehensive security features ensure compliance with regulatory requirements and protect against potential threats, which is particularly important for sectors handling sensitive information, such as finance and healthcare.

BEA 7 also embraces innovative technologies such as the Java EE platform, facilitating the development of cross-platform applications. The integrated development environment (IDE) offers numerous tools for developers, making it easier to design, debug, and deploy applications. Developers benefit from built-in support for commonly used frameworks and libraries, improving productivity and enabling rapid application development.

In summary, BEA 7 stands out as a powerful enterprise solution, distinguished by its support for SOA, robust application server capabilities, web services integration, strong security features, and a developer-friendly environment. These attributes make BEA 7 an essential tool for organizations aiming to enhance their operational efficiency and adapt to the increasingly dynamic business landscape.
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