Porting and Converting Enterprise JavaBeans Applications

For instance, WebLogic Server 7.0 ensures that a method exists if a transaction attribute is set for that method name. This helps identify a common set of errors where transaction attributes were mistakenly set on non-existent methods.

„ Look at the WebLogic Server 7.0 examples

The WebLogic Server distribution contains several EJB examples including their deployment descriptors. The EJB examples can be found in the

samples\server\src\examples\ejb11 and samples\server\src\examples\ejb20 directories of the WebLogic Server 7.0 distribution.

The following table shows the descriptor combinations supported by WebLogic Server 7.0.

Table 2-1

EJB Version

WebLogic Server

The CMP Version

 

Version

 

Any existing WebLogic Server 5.1 deployment uses the following combination and can be deployed without changing descriptors or code in WebLogic Server 7.0.

1.1

5.1

5.1

The below combinations include a WebLogic Server 7.0 CMP deployment descriptor. The WebLogic Server 7.0 EJB 1.1 CMP deployment descriptor allows multiple EJBs to be specified within a single EJB JAR file, and it supports using a TxDataSource which is required when an EJB is enlisted in a two-phase /XA transaction.

1.1

5.1

7.0

 

 

 

1.1

7.0

7.0

 

 

EJB 2.0 beans always use the WebLogic Server 6.x or 7.0 deployment descriptors.

 

 

 

 

2.0

6.x

7.0

 

 

 

2.0

7.0

7.0

 

 

 

For more information on Enterprise JavaBeans, see Enterprise JavaBean Components and Programming WebLogic Enterprise Java Beans.

BEA WebLogic Server 7.0 Upgrade Guide

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BEA 7 manual EJB Version WebLogic Server CMP Version

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.