The document provides an overview of entity EJBs, including:
1) Entity EJBs represent persistent data that can survive crashes and allow multiple clients to access shared data.
2) There are two approaches to persistence management - container-managed persistence (CMP) and bean-managed persistence (BMP).
3) Entity EJBs use a primary key class to uniquely identify each entity instance and a findByPrimaryKey method to retrieve entities.
Enterprise JavaBeans (EJB) are server-side components that allow developers to write business logic independently of underlying middleware services like transactions and security. EJBs run within an EJB container managed by an application server, which handles these services automatically. The EJB specification defines standards for container functionality, component model, and interfaces to support portability of EJBs across application servers.
EJB 3.0 Java Persistence with Oracle TopLinkBill Lyons
This document discusses using Oracle TopLink as a persistence framework with Java Persistence API (JPA) and EJB 3.0. It provides an overview of setting up a TopLink project in JDeveloper, generating entity objects and a session bean, and performing basic CRUD operations. The document demonstrates how to query, insert, update, and delete data using the TopLink APIs.
Enterprise Java Beans (EJB) is a platform for building portable, reusable, and scalable business applications using the Java programming language.
EJB allows application developers to focus on building business logic without having to spend time on building infrastructure code for services such as transactions, security, automated persistence, and so on.
This presentation introduces EJB 3.0 concepts with code examples.
The document provides an overview of developing a J2EE application with JBoss to manage drink accounts. It discusses the application scenario, J2EE concepts like containers, entity beans, session beans and servlets. It also covers packaging, deployment, XDoclet for code generation and the advantages and disadvantages of using J2EE.
The document provides an overview of Enterprise JavaBeans (EJB) architecture including what EJBs are, the key features and benefits of EJBs, the different types of EJBs, and the roles involved in EJB development. It describes how EJB containers provide services like transactions, security, and persistence to EJB components and how clients interact with EJBs through remote interfaces.
The document discusses Enterprise JavaBeans (EJB), which is a server-side component architecture that allows for modular construction of enterprise applications. EJB encapsulates business logic and is managed by an EJB container. The EJB specification was originally developed in 1997 and aims to provide a write once, run anywhere model for developing distributed applications. Key aspects of EJB discussed include entity beans, session beans, message-driven beans, container-managed persistence, relationships, and improvements in EJB 2.0.
This document discusses patterns and best practices for dependency injection using the Contexts and Dependency Injection (CDI) specification. It provides an overview of CDI concepts like scopes, qualifiers, producers, events, decorators, and alternatives. It also discusses how CDI is implemented in WebSphere Application Server, including bean failover support.
Enterprise JavaBeans (EJB) are server-side components that allow developers to write business logic independently of underlying middleware services like transactions and security. EJBs run within an EJB container managed by an application server, which handles these services automatically. The EJB specification defines standards for container functionality, component model, and interfaces to support portability of EJBs across application servers.
EJB 3.0 Java Persistence with Oracle TopLinkBill Lyons
This document discusses using Oracle TopLink as a persistence framework with Java Persistence API (JPA) and EJB 3.0. It provides an overview of setting up a TopLink project in JDeveloper, generating entity objects and a session bean, and performing basic CRUD operations. The document demonstrates how to query, insert, update, and delete data using the TopLink APIs.
Enterprise Java Beans (EJB) is a platform for building portable, reusable, and scalable business applications using the Java programming language.
EJB allows application developers to focus on building business logic without having to spend time on building infrastructure code for services such as transactions, security, automated persistence, and so on.
This presentation introduces EJB 3.0 concepts with code examples.
The document provides an overview of developing a J2EE application with JBoss to manage drink accounts. It discusses the application scenario, J2EE concepts like containers, entity beans, session beans and servlets. It also covers packaging, deployment, XDoclet for code generation and the advantages and disadvantages of using J2EE.
The document provides an overview of Enterprise JavaBeans (EJB) architecture including what EJBs are, the key features and benefits of EJBs, the different types of EJBs, and the roles involved in EJB development. It describes how EJB containers provide services like transactions, security, and persistence to EJB components and how clients interact with EJBs through remote interfaces.
The document discusses Enterprise JavaBeans (EJB), which is a server-side component architecture that allows for modular construction of enterprise applications. EJB encapsulates business logic and is managed by an EJB container. The EJB specification was originally developed in 1997 and aims to provide a write once, run anywhere model for developing distributed applications. Key aspects of EJB discussed include entity beans, session beans, message-driven beans, container-managed persistence, relationships, and improvements in EJB 2.0.
This document discusses patterns and best practices for dependency injection using the Contexts and Dependency Injection (CDI) specification. It provides an overview of CDI concepts like scopes, qualifiers, producers, events, decorators, and alternatives. It also discusses how CDI is implemented in WebSphere Application Server, including bean failover support.
This document provides an overview of Enterprise Java Beans (EJBs), including:
- EJBs allow building distributed, transactional business logic components.
- The main EJB types are session beans, entity beans, and message-driven beans.
- Session beans can be stateless or stateful and are used to encapsulate business services.
- EJBs support features like transactions, security, scalability, and persistence.
Enterprise Java Beans (EJBs) allow developers to create reusable components called beans that can be assembled into applications. Beans encapsulate business logic and delegate common services like transactions and security to the application server. EJBs improve code reuse by allowing the same bean functionality to be used across multiple applications without modifying code.
The document provides instructions for setting up an environment to develop and deploy EJB applications using NetBeans IDE. It includes steps to install Java, NetBeans, JBoss application server, and a database. It also explains how to create an EJB project in NetBeans with a sample session bean, build and deploy the project on JBoss. The sample bean allows adding and retrieving books from a list.
Quontra Solutions is leading provider of IT career advice, Training and consulting services for IT Professional and corporates across USA. We train individuals or Corporate via online or class Room training in all IT tools and Technologies.
We always strive to bring out innovative methods along with the traditional teaching techniques which enhance the overall experience of the students and teachers to extract the return on Investments, high efficiency and scalability.
The company’s architecture is based on the insights from the marketplace, business analytics and strategies keeping intact the fundamental principles in mind, helps us to compete and win in today’s environment without changing any quality in training.
The support, service and training provided by Quontra solutions for various customers assures a “stay up to date” easy transition from previous to current in terms of technology. Our advertisers and promoters are none other than the clients you have been associated with us for their training needs. We improve our training programs from the feedback from the students.
Email Id : info@quontrasolutions.co.uk
Website: http://www.quontrasolutions.co.uk
This document provides an overview of Enterprise Java Beans (EJB). It describes EJB as a specification that allows developing secure, robust, and scalable distributed applications in Java. It discusses the different EJB components like session beans, message-driven beans, and entity beans. It also compares EJB with other technologies like RMI, web services, and Java Message Service (JMS).
Vibrant Technologies is headquarted in Mumbai,India.We are the best enterprise java beans training provider in Navi Mumbai who provides Live Projects to students.We provide Corporate Training also.We are Best EJB classes in Mumbai according to our students and corporates
Contact Us On : http://vibranttechnologies.co.in/
With the official release of Java EE 6 in December 2009 a new version of the Enterprise JavaBeans specification also saw the light. Enterprise JavaBeans is an architecture for the development and deployment of component-based business applications. Applications written using the Enterprise JavaBeans architecture are scalable, transactional, and concurrent.
While a lot of faithful EJB developer's have been scared away from the specification and some of its unfortunate implementations in the past five years, EJB 3.1 has all the ingredients that make for a successful lightweight component based implementation. At last a decent implementation of a server-side component framework as part of the Java EE specification. This no longer makes you dependent on rebel frameworks such as the Spring framework.
EJB 3.1 continues down the path where EJB 3.0 left us off. The purpose of the Enterprise JavaBeans 3.1 specification is to further simplify the EJB architecture by reducing its complexity from the developer's point of view, while also adding new functionality in response to the needs of the community. Although the Java Persistence API was developed within EJB 3.0, it now evolves under a separate JSR rather than within EJB 3.1 and will therefore not be covered in this presentation.
This presentation will mainly focus on the new features introduced by EJB 3.1 and the basics of EJB are only covered very briefly. Topics covered include: EJB Lite, simple packaging, no-interface local view, portable JNDI names, Embeddable API, Startup/shutdown callbacks, Singleton beans, the new and improved timer and scheduler component, Async invocations, and REST integration.
The document discusses the reconciliation engine in N(i)2 Suite. The reconciliation engine allows data from multiple sources like surveys, auto-discovery tools, databases, etc. to be reconciled with the inventory. It features the ability to reconcile different data types and formats, define import/export filters and rules, and schedule periodic reconciliation. The reconciliation process uses a rules engine to map and transform data based on metadata and apply matching rules to identify corresponding objects and attributes between the data sources and CMDB.
EJB3.1 defines enterprise beans as server-side components that encapsulate business logic. The main types of enterprise beans are session beans, message-driven beans, and entity beans. Session beans are further divided into stateless, stateful, and singleton beans. Enterprise beans provide benefits such as portability, transaction management, and scalability.
This is an overview how to build an OSGI EJB3 Server I gave at OSGIExpertsDay at JAX09.
The Server is build using:
Eclipse Equinox as OSGI Framework
Eclipse Riena for Remote OSGI Services
EasyBeans as OSGI EJB3 Container
Hibernate as JPA Provider
Clients are Rich Clients (Eclipse RCP)
The project is model-driven using UML (MagicDraw), EMF (Eclipse Modeling) and oAW (openArchitectureWare).
more info:
http://ekkes-corner.org (blog english)
http://ekkes-ecke.org (blog german)
http://ekkes-corner-tv.org (Video PodCasts)
You want to watch the slides with included screencasts ? here's the movie:
http://www.vimeo.com/ekkescorner/videos
Enterprise Java Beans (EJB) is a development architecture for building highly scalable and robust enterprise level applications to be deployed on J2EE compliant Application Server such as JBOSS, Web Logic etc. EJB 3.0 is being a great shift from EJB 2.0 and makes development of EJB based applications quite easy.
CETPA INFOTECH PVT LTD is one of the IT education and training service provider brands of India that is preferably working in 3 most important domains. It includes IT Training services, software and embedded product development and consulting services.
CETPA INFOTECH PVT LTD is one of the IT education and training service provider brands of India that is preferably working in 3 most important domains. It includes IT Training services, software and embedded product development and consulting services.
http://www.cetpainfotech.com
This document introduces session beans and distributed component architectures in Java EE. It discusses how components are building blocks that provide functions and interact with other applications. It also explains how Enterprise JavaBeans (EJB) encapsulate business logic, and technologies like RMI and JNDI that allow for distributed objects and lookup of components across a network.
Composite Applications with SOA, BPEL and Java EEDmitri Shiryaev
The document discusses building composite applications using service-oriented architecture (SOA), BPEL, and Java EE. It introduces composite applications and how SOA allows applications to be composed of reusable parts that can be flexibly assembled. The benefits of SOA include flexibility, faster development, leveraging existing assets, and enabling new business opportunities. Key SOA concepts are introduced like services, service implementations, and service-oriented design.
CORBA allows for cross-platform communication between software components. It uses an Object Request Broker (ORB) to connect client objects to server objects across a network. Interfaces are defined using the Interface Definition Language (IDL) and compiled to generate stubs and skeletons in various programming languages. Clients locate objects by querying a naming service, then call methods on remote objects using the stubs.
Bea Web Logic Workshop81 Jump Start Guideguest4263ad
This document provides an overview and instructions for exercises using BEA WebLogic Workshop 8.1 beta software. It describes the visual development environment, built-in Java controls, and support for creating web services, web applications, and custom controls. The exercises demonstrate setting up sample data, building a custom control, creating a web service with loose coupling, developing a web application using data binding and page flow technology, and generating a web app from a Java control.
WebLogic Portal is an enterprise portal platform that can be used to build a wide range of portals and applications to connect people, processes, and information across an organization. It provides a flexible framework and tools to help organizations unify their web presence, integrate applications and data sources, improve productivity and collaboration, and reduce IT costs. Key capabilities include support for rich internet applications, component-based design, custom mashups and communities, and pre-built best practice solutions.
This document provides guidance on capacity planning and performance tuning for BEA WebLogic Integration (WLI) 10.2. It describes the capacity planning process, which involves designing the WLI application, tuning the environment, performance testing, and scaling tests to estimate future hardware and software resource requirements. The document also provides tips on tuning various aspects of WLI to improve performance.
This document provides an overview of Enterprise Java Beans (EJBs), including:
- EJBs allow building distributed, transactional business logic components.
- The main EJB types are session beans, entity beans, and message-driven beans.
- Session beans can be stateless or stateful and are used to encapsulate business services.
- EJBs support features like transactions, security, scalability, and persistence.
Enterprise Java Beans (EJBs) allow developers to create reusable components called beans that can be assembled into applications. Beans encapsulate business logic and delegate common services like transactions and security to the application server. EJBs improve code reuse by allowing the same bean functionality to be used across multiple applications without modifying code.
The document provides instructions for setting up an environment to develop and deploy EJB applications using NetBeans IDE. It includes steps to install Java, NetBeans, JBoss application server, and a database. It also explains how to create an EJB project in NetBeans with a sample session bean, build and deploy the project on JBoss. The sample bean allows adding and retrieving books from a list.
Quontra Solutions is leading provider of IT career advice, Training and consulting services for IT Professional and corporates across USA. We train individuals or Corporate via online or class Room training in all IT tools and Technologies.
We always strive to bring out innovative methods along with the traditional teaching techniques which enhance the overall experience of the students and teachers to extract the return on Investments, high efficiency and scalability.
The company’s architecture is based on the insights from the marketplace, business analytics and strategies keeping intact the fundamental principles in mind, helps us to compete and win in today’s environment without changing any quality in training.
The support, service and training provided by Quontra solutions for various customers assures a “stay up to date” easy transition from previous to current in terms of technology. Our advertisers and promoters are none other than the clients you have been associated with us for their training needs. We improve our training programs from the feedback from the students.
Email Id : info@quontrasolutions.co.uk
Website: http://www.quontrasolutions.co.uk
This document provides an overview of Enterprise Java Beans (EJB). It describes EJB as a specification that allows developing secure, robust, and scalable distributed applications in Java. It discusses the different EJB components like session beans, message-driven beans, and entity beans. It also compares EJB with other technologies like RMI, web services, and Java Message Service (JMS).
Vibrant Technologies is headquarted in Mumbai,India.We are the best enterprise java beans training provider in Navi Mumbai who provides Live Projects to students.We provide Corporate Training also.We are Best EJB classes in Mumbai according to our students and corporates
Contact Us On : http://vibranttechnologies.co.in/
With the official release of Java EE 6 in December 2009 a new version of the Enterprise JavaBeans specification also saw the light. Enterprise JavaBeans is an architecture for the development and deployment of component-based business applications. Applications written using the Enterprise JavaBeans architecture are scalable, transactional, and concurrent.
While a lot of faithful EJB developer's have been scared away from the specification and some of its unfortunate implementations in the past five years, EJB 3.1 has all the ingredients that make for a successful lightweight component based implementation. At last a decent implementation of a server-side component framework as part of the Java EE specification. This no longer makes you dependent on rebel frameworks such as the Spring framework.
EJB 3.1 continues down the path where EJB 3.0 left us off. The purpose of the Enterprise JavaBeans 3.1 specification is to further simplify the EJB architecture by reducing its complexity from the developer's point of view, while also adding new functionality in response to the needs of the community. Although the Java Persistence API was developed within EJB 3.0, it now evolves under a separate JSR rather than within EJB 3.1 and will therefore not be covered in this presentation.
This presentation will mainly focus on the new features introduced by EJB 3.1 and the basics of EJB are only covered very briefly. Topics covered include: EJB Lite, simple packaging, no-interface local view, portable JNDI names, Embeddable API, Startup/shutdown callbacks, Singleton beans, the new and improved timer and scheduler component, Async invocations, and REST integration.
The document discusses the reconciliation engine in N(i)2 Suite. The reconciliation engine allows data from multiple sources like surveys, auto-discovery tools, databases, etc. to be reconciled with the inventory. It features the ability to reconcile different data types and formats, define import/export filters and rules, and schedule periodic reconciliation. The reconciliation process uses a rules engine to map and transform data based on metadata and apply matching rules to identify corresponding objects and attributes between the data sources and CMDB.
EJB3.1 defines enterprise beans as server-side components that encapsulate business logic. The main types of enterprise beans are session beans, message-driven beans, and entity beans. Session beans are further divided into stateless, stateful, and singleton beans. Enterprise beans provide benefits such as portability, transaction management, and scalability.
This is an overview how to build an OSGI EJB3 Server I gave at OSGIExpertsDay at JAX09.
The Server is build using:
Eclipse Equinox as OSGI Framework
Eclipse Riena for Remote OSGI Services
EasyBeans as OSGI EJB3 Container
Hibernate as JPA Provider
Clients are Rich Clients (Eclipse RCP)
The project is model-driven using UML (MagicDraw), EMF (Eclipse Modeling) and oAW (openArchitectureWare).
more info:
http://ekkes-corner.org (blog english)
http://ekkes-ecke.org (blog german)
http://ekkes-corner-tv.org (Video PodCasts)
You want to watch the slides with included screencasts ? here's the movie:
http://www.vimeo.com/ekkescorner/videos
Enterprise Java Beans (EJB) is a development architecture for building highly scalable and robust enterprise level applications to be deployed on J2EE compliant Application Server such as JBOSS, Web Logic etc. EJB 3.0 is being a great shift from EJB 2.0 and makes development of EJB based applications quite easy.
CETPA INFOTECH PVT LTD is one of the IT education and training service provider brands of India that is preferably working in 3 most important domains. It includes IT Training services, software and embedded product development and consulting services.
CETPA INFOTECH PVT LTD is one of the IT education and training service provider brands of India that is preferably working in 3 most important domains. It includes IT Training services, software and embedded product development and consulting services.
http://www.cetpainfotech.com
This document introduces session beans and distributed component architectures in Java EE. It discusses how components are building blocks that provide functions and interact with other applications. It also explains how Enterprise JavaBeans (EJB) encapsulate business logic, and technologies like RMI and JNDI that allow for distributed objects and lookup of components across a network.
Composite Applications with SOA, BPEL and Java EEDmitri Shiryaev
The document discusses building composite applications using service-oriented architecture (SOA), BPEL, and Java EE. It introduces composite applications and how SOA allows applications to be composed of reusable parts that can be flexibly assembled. The benefits of SOA include flexibility, faster development, leveraging existing assets, and enabling new business opportunities. Key SOA concepts are introduced like services, service implementations, and service-oriented design.
CORBA allows for cross-platform communication between software components. It uses an Object Request Broker (ORB) to connect client objects to server objects across a network. Interfaces are defined using the Interface Definition Language (IDL) and compiled to generate stubs and skeletons in various programming languages. Clients locate objects by querying a naming service, then call methods on remote objects using the stubs.
Bea Web Logic Workshop81 Jump Start Guideguest4263ad
This document provides an overview and instructions for exercises using BEA WebLogic Workshop 8.1 beta software. It describes the visual development environment, built-in Java controls, and support for creating web services, web applications, and custom controls. The exercises demonstrate setting up sample data, building a custom control, creating a web service with loose coupling, developing a web application using data binding and page flow technology, and generating a web app from a Java control.
WebLogic Portal is an enterprise portal platform that can be used to build a wide range of portals and applications to connect people, processes, and information across an organization. It provides a flexible framework and tools to help organizations unify their web presence, integrate applications and data sources, improve productivity and collaboration, and reduce IT costs. Key capabilities include support for rich internet applications, component-based design, custom mashups and communities, and pre-built best practice solutions.
This document provides guidance on capacity planning and performance tuning for BEA WebLogic Integration (WLI) 10.2. It describes the capacity planning process, which involves designing the WLI application, tuning the environment, performance testing, and scaling tests to estimate future hardware and software resource requirements. The document also provides tips on tuning various aspects of WLI to improve performance.
Oracle WebLogic: Feature Timeline from WLS9 to WLS 12cfrankmunz
WebLogic Server 9 introduced many new features including running on Java 5, improved scripting tools, side-by-side deployment, and workmanager concepts. Version 10.3 introduced Java 6 support, a new JAX-WS web service stack, and on-demand deployment. WebLogic 11g brought a new admin console look, integration with Coherence and Toplink, and formal JSF 2.0 support.
This document provides an overview and instructions for using JDBC and configuring WebLogic connection pools and data sources. It discusses WebLogic's JDBC drivers and features for performance, including connection pools, MultiPools, and clustered JDBC. It also covers administration tasks like monitoring connectivity and configuring JDBC components. Finally, it provides details on creating and managing connection pools, both at startup and dynamically.
WLST can be used to monitor, manage, and configure WebLogic Server instances both online and offline. It provides various modes of operation including interactive, scripting, and embedded. Key features include creating and configuring domains, deploying applications, controlling servers and lifecycles, and accessing MBeans. WLST scripts can perform tasks such as starting servers, editing configuration attributes, and monitoring threads.
WebLogic Transaction Service provides transaction processing capabilities in WebLogic Server. It uses the Java Transaction API (JTA) model where the transaction manager coordinates transactions across multiple resource managers like databases. Transactions can have different isolation levels to balance consistency, concurrency and performance. WebLogic supports both local and global transactions within and across domains. Transaction parameters, monitoring, recovery and debugging options are available to manage transactions in WebLogic Server.
This document outlines an agenda for a WebLogic training session. It lists 15 topics that will be covered, including WebLogic installation, domain configuration, clustering, deployment, JMS, security, performance tuning, logging, WLST scripting, JMX monitoring, JTA transactions, and SSL. For each topic, it provides a brief description of the areas that will be covered.
This document provides an overview of basic Oracle WebLogic Server concepts such as domains, servers, clusters, and node managers. It describes how a domain contains servers and clusters, and how there is one administrative server that controls start/stop of managed servers. The administrative server manages deployment and resources, while managed servers are independent instances that synchronize configuration with the administrative server. A node manager is used to start/stop managed servers on physical machines. Clusters provide scalability through load balancing and high availability through failover. The document also notes WebLogic compatibility with Java EE specifications like EJB and JPA.
Este documento explica cómo crear y publicar un blog usando la plataforma Blogger de forma gratuita. Describe los pasos para crear una cuenta de Blogger, darle un nombre y elegir una plantilla para el blog. Luego explica cómo crear entradas en el blog insertando texto e imágenes, y cómo publicarlas. También cubre cómo editar entradas existentes y acceder al blog a través de su dirección URL una vez publicado. El objetivo es que los estudiantes creen blogs grupales enfocados en temas de su carrera y debatan los temas public
The document discusses the Enterprise JavaBeans (EJB) architecture. It introduces EJB components and their runtime environment. The key aspects covered include: EJB types like session beans, entity beans, message-driven beans; the EJB container which provides services to managed EJB instances; synchronous and asynchronous communication between EJB components; and relationships like those between entity beans.
Enterprise JavaBeans (EJB) are server-side components that allow for the development of scalable, transactional, secure distributed applications. There are three main types of EJB components: session beans which represent business logic and processes, entity beans which manage persistent data storage, and message-driven beans which consume messages from external systems like JMS. EJB provides a standardized architecture for building modular, portable enterprise applications that can be deployed across compliant application servers.
This document describes the development of a virtual classroom system. The system will provide an integrated e-learning environment for university students and distance learners. Key aspects include:
- The system will allow students, instructors, and administrators to access academic resources over the internet.
- The initial architecture used a Java Swing client, Tomcat servlet container, and PostgreSQL database. This was later changed to use Enterprise JavaBeans for transaction management, persistence, security and caching.
- Requirements include supporting courses, quizzes, grades, and user accounts for students, instructors and an administrator. The timeline and challenges of learning new technologies like EJBs are also outlined.
This document provides an overview of Enterprise Java Beans (EJB), including what EJBs are, their key features, why they are used, how they compare to JavaBeans, the EJB architecture and container services, contracts between different roles in EJB development, and examples of EJB design and use cases. It discusses the roles of EJB providers, deployers, application servers, assemblers and administrators. It also outlines the responsibilities of EJB clients and bean programmers.
EJB systems within Mule project is a bottleneck for enterprises. Wahid Mohammad(https://www.linkedin.com/in/wahid-mohammad) shares his expertise on how to solve this integration issue.
This is part at Dallas Mule Meetup hosted on 03/18/2022.
Register for next meetup: https://meetups.mulesoft.com/dallas/
This document discusses EJB technology and provides summaries of key concepts:
1. It defines the EJB container model and describes features like security, distributed access, and lifecycle management.
2. It compares the lifecycles of stateless session beans, stateful session beans, entity beans, and message-driven beans.
3. It contrasts stateful and stateless session beans and discusses differences in client state, pooling, lifecycles, and more. It also compares session beans and entity beans in terms of representing processes versus data.
Java Web Programming [1/9] : Introduction to Web ApplicationIMC Institute
This document provides an overview of web application development. It discusses the evolution of application frameworks from single-tier to multi-tier architectures. It also describes the components of a web application like servlets, JSPs, and the web container. The steps for building a simple web application using Eclipse and Tomcat are outlined, including creating the project structure, deployment descriptor, and deploying the WAR file.
The document discusses Enterprise Java Beans (EJB) technology. It begins with an introduction to Java 2 Enterprise Edition (J2EE) and its value propositions. It then describes the various J2EE technologies including EJB, Servlets, JavaServer Pages (JSP), Java Message Service (JMS), and others. The remainder of the document focuses on EJB, describing the different EJB types (entity, session, message-driven), their life cycles, roles in development, and how applications are built and deployed using multiple EJBs.
This document provides an overview of J2EE web services. It discusses application servers, what J2EE is, main J2EE technologies like JSP, servlets and EJBs, J2EE application scenarios, APIs and services, and goes into more detail on EJBs. The main technologies allow development of multi-tier web applications with distributed components. EJBs in particular provide business logic in a distributed manner while the container handles availability, scalability and other services. The document also outlines session beans, entity beans and message-driven beans as types of enterprise beans.
This presentation deeply discusses the usage of EJB component in Java EE architecture. Before start reading about EJB, it is advisable to understand the history behind component-container architecture.
These slides were used for the module "Introduction to EJB" which was taught as a part of the course "Software Engineering" for the 3rd year computer enigneering undergraduates of the University of Peradeniya in 2010.
Srihitha Technologies provides J2EE Online Training in Ameerpet by real time Experts. For more information about J2EE online training in Ameerpet call 9885144200 / 9394799566.
There are three main ways to make objects persistent: object serialization, object-relational mapping, and object database management systems. Entity beans comprise several files including the entity bean class, remote interface, local interface, home interface, primary key class, and deployment descriptors. Message-driven beans allow asynchronous messaging between applications by implementing business logic in the onMessage() method to process received messages.
Chemical Database Management J Chem Base And J Chem Cartridge: US UGM 2008ChemAxon
JChem Base is a chemical database management toolkit to handle chemical structures and associated data (user-defined or predicted), stored in relational databases. JChem Cartridge provides similar functionality highly integrated into Oracle as well as an Oracle interface to other ChemAxon products.
For latest developments see: http://www.chemaxon.com/product/jc_base.html
Overview of EJB technology.
Enterprise Java Beans (EJB) is a server-side component technology for Java EE based systems (JEE).
Beans are business logic components that implement a standard interface through which the bean is hooked into the bean container (= runtime object for bean).
A Java class implementing one of the standard bean interfaces is an Enterprise Java Bean. Beans can be accessed remotely, usually from a client tier.
The EJB standard was developed to provide a common framework for solving recurring problems in business application development like persistence, transactions,
security and runtime and lifecycle management. The EJB standard evolved greatly over time. EJB version 1 and 2 were complex and required to implement many interfaces
and exception handling in EJBs. EJB version 3 brought great simplifications and did away with interfaces by replacing these with annotations which provide greater flexibility while keeping complexity low. EJBs come in 3 different flavors: Stateless and stateful session beans and message driven beans. Entity beans of EJB version 1 and 2 were replaced by the Java Persistence API in EJB version 3.
The key components of an enterprise bean include the bean class, EJB object, home interface, home object, and deployment descriptors. A stateless session bean handles business logic without retaining data between method calls. The EJB container manages transactions, security, and instances to provide services to the bean. Clients access beans through JNDI lookup of the home object which creates EJB objects that delegate method calls to the bean class. Deployment requires packaging the bean class, interfaces, and descriptors into an ejb-jar file.
The document discusses new features in Exchange 2013 that improve client access through a redesigned client access architecture using load balancing at the network layer, role evolution through consolidation of server roles, and cross-version interoperability principles. It also outlines changes to the Exchange architecture that improve hardware efficiency and simplify deployments through the use of database availability groups and a single master model for public folders.
EMF-IncQuery 0.7 Presentation for ItemisIstvan Rath
The document introduces EMF-INCQUERY, a model query engine for Eclipse Modeling Framework (EMF) models. It provides an expressive graph pattern query language and incremental query evaluation based on the Rete algorithm. This enables efficient complex queries over large models. EMF-INCQUERY addresses performance issues of model queries in modeling tools and simplifies writing complex queries through reusable query libraries and pattern composition. It integrates with EMF-based applications and provides features like on-the-fly validation and view maintenance.
Enterprise Java Beans (EJBs) are software components that run within a special EJB container. The container handles complex tasks like transactions, security, persistence and more, allowing developers to focus on business logic. There are three main types of EJBs - entity beans for data access, session beans for business processes, and message-driven beans for asynchronous messaging. The document provides details on how each type of EJB interacts with and is managed by the container.
The document discusses various e-voting systems like Estonian and SERVE. It notes key aspects like authentication methods, number of votes allowed, and procedures in case of attacks. It outlines disadvantages like lost IDs allowing unauthorized voting and hackable authentication. It then proposes a biometric smart card based system using fingerprint and facial recognition for verification along with DNA-based encryption, storage, and a tamper-proof voting process.
This certificate certifies that Meenakshi C achieved the ITIL® Foundation Certificate in IT Service Management effective from August 13, 2012 with a registration number of 4554845.1113325, as signed by drs. Bernd W.E. Taselaar, Chief Executive Officer of EXIN, the global independent certification institute for ICT Professionals.
This document provides links to download and install MySQL database software as well as tools to interact with it. It includes links to download MySQL, an installation video guide, the MySQL Workbench UI tool, and the Eclipse Helios IDE which can be used to develop applications that utilize MySQL.
PL/SQL is Oracle's procedural language extension of SQL. It allows developers to manipulate data in an Oracle database using SQL statements and process data using flow control statements. PL/SQL code is organized into logical blocks that can contain declarations, statements, and exceptions. It provides modern programming features like data encapsulation and exception handling. Key concepts include datatypes, declarations, implicit and explicit datatype conversion, comments, and using %TYPE and %ROWTYPE attributes.
The document discusses a presentation on learning Hibernate through hands-on examples. It will cover object-relational mapping with Hibernate, building a sample application incrementally to cover major Hibernate features like mapping, queries, and performance. The goal is to help attendees get practical experience with Hibernate in an iterative style.
This document provides instructions on installing and launching MySQL Workbench on Windows, Linux, and Mac OS X. It discusses the software's hardware and software requirements, installation procedures for each operating system, and an overview of the main features and interface of MySQL Workbench.
This document provides an overview and introduction to using JDBC (Java Database Connectivity) to connect Java applications to databases. It discusses establishing a connection via a JDBC URL, interacting with databases using statements and result sets, and mapping between SQL and Java data types. The document is a guide for developers to get started using JDBC.
This document provides endorsements for the book "Thinking in C++" by Bruce Eckel. It contains quotes praising the book from four people: Al Stevens, Andrew Binstock, Gary Entsminger, and Richard Hale Shaw. All endorse the book for clearly explaining object-oriented programming concepts in C++ and providing answers to difficult questions about the C++ language.
This document provides an introduction to writing a simple thin-client multitiered enterprise application using Java 2 SDK, Enterprise Edition. It describes creating an HTML page, servlet, and session bean to calculate a bonus. The HTML page accepts user input and invokes the servlet, which looks up the session bean. The session bean performs the calculation and returns the result to the servlet, which displays the output on another HTML page. It provides instructions for setting up the software, creating the application components, compiling, deploying, and running the application across multiple tiers.
The document discusses DNA computers as an alternative to silicon-based computers. DNA computers use DNA strands as a means of data storage and processing. Some key advantages of DNA computers include massive parallelism, as all DNA strands can be operated on simultaneously, and large storage capacity, as a single gram of DNA can store over 1x10^14 megabytes of data. DNA computers also have error correction mechanisms that allow them to resist viruses. They may help solve computationally difficult problems like the Hamiltonian problem more efficiently through massive parallelization. However, more work is still needed to develop DNA computing into a fully practical technology.