{"id":66340,"date":"2021-07-18T11:25:01","date_gmt":"2021-07-18T15:25:01","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/core-j2ee-component-technologies-java-short-notes\/"},"modified":"2021-07-18T11:25:01","modified_gmt":"2021-07-18T15:25:01","slug":"core-j2ee-component-technologies-java-short-notes","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=66340","title":{"rendered":"Core J2EE Component Technologies #Java Short Notes"},"content":{"rendered":"<p><b>Core J2EE Component Technologies<\/b> <\/p>\n<ul>\n<li> J2EE Application Components: Web Components, Business Components    <\/li>\n<li> Web-Component:\n<ul>\n<li> Software entity hosted by a web-container on a J2EE Server     <\/li>\n<li> Generate user interface for web-based applications     <\/li>\n<li> Two Types: Servlets, JSPs     <\/li>\n<li> Servlets: Process requests dynamically, format responses    <\/li>\n<li>JSPs: How to process requests, and format responses    <\/li>\n<\/ul>\n<\/li>\n<li> Business Components: EJB Components or enterprise beans: Contain business logic of an enterprise application. Three types: Session Beans, Entity Beans, Message Beans <\/li>\n<\/ul>\n<p><b>J2EE Services<\/b> <\/p>\n<ul>\n<li> <b>Distributed Communication Services:<\/b>\n<ul>\n<li> Distributed Communication Services provide J2EE components distributed communications capability and EIS access      <\/li>\n<li> Web-container Service Components: JMS, JNDI, RMI-IIOP,CORBA and Java       IDL      <\/li>\n<li> Roughly: RMI-IIOP, CORBA and Java IDL: Applet and Application Container to Web-Container Communications        <\/li>\n<li> JMS, JNDI: Between web-container and EJB container components. For application components not for users      <\/li>\n<li> JNDI: Naming and directory services.      <\/li>\n<li> CORBA: Objects to communicate regardless of their implementation language or the operating system      <\/li>\n<li> Java IDL API enables J2EE applications to utilize CORBA functionality    <\/li>\n<\/ul>\n<\/li>\n<li> <b>Other support technologies<\/b>\n<ul>\n<li> JDBC, Java Transaction API, Java Transaction Service, J2EE Connectors, JavaMail         <\/li>\n<li> JDBC: Provides database access from Java.        <\/li>\n<li> Latest JDBC: Provides connection pooling and distributed transaction support for the J2EE platform          <\/li>\n<li> JDBC Drivers: Java, Partial Java, Java Native Interface (JNI)        <\/li>\n<li> J2EE connector architecture provides supports to connect to EISs         <\/li>\n<li> JavaMail API to handle mailing      <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p> From: http:\/\/sitestree.com\/?p=4982<br \/> Categories:Java Short Notes<br \/>Tags:<br \/> Post Data:2012-10-30 12:18:39<\/p>\n<p>\t\tShop Online: <a href='https:\/\/www.ShopForSoul.com\/' target='new' rel=\"noopener\">https:\/\/www.ShopForSoul.com\/<\/a><br \/>\n\t\t(Big Data, Cloud, Security, Machine Learning): Courses: <a href='http:\/\/Training.SitesTree.com' target='new' rel=\"noopener\"> http:\/\/Training.SitesTree.com<\/a><br \/>\n\t\tIn Bengali: <a href='http:\/\/Bangla.SaLearningSchool.com' target='new' rel=\"noopener\">http:\/\/Bangla.SaLearningSchool.com<\/a><br \/>\n\t\t<a href='http:\/\/SitesTree.com' target='new' rel=\"noopener\">http:\/\/SitesTree.com<\/a><br \/>\n\t\t8112223 Canada Inc.\/JustEtc: <a href='http:\/\/JustEtc.net' target='new' rel=\"noopener\">http:\/\/JustEtc.net (Software\/Web\/Mobile\/Big-Data\/Machine Learning) <\/a><br \/>\n\t\tShop Online: <a href='https:\/\/www.ShopForSoul.com'> https:\/\/www.ShopForSoul.com\/<\/a><br \/>\n\t\tMedium: <a href='https:\/\/medium.com\/@SayedAhmedCanada' target='new' rel=\"noopener\"> https:\/\/medium.com\/@SayedAhmedCanada <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Core J2EE Component Technologies J2EE Application Components: Web Components, Business Components Web-Component: Software entity hosted by a web-container on a J2EE Server Generate user interface for web-based applications Two Types: Servlets, JSPs Servlets: Process requests dynamically, format responses JSPs: How to process requests, and format responses Business Components: EJB Components or enterprise beans: Contain business &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=66340\">Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-66340","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":66421,"url":"http:\/\/bangla.sitestree.com\/?p=66421","url_meta":{"origin":66340,"position":0},"title":"Key J2EE  Components : Basic Concepts with Examples #Java Short Notes","author":"Author-Check- Article-or-Video","date":"July 19, 2021","format":false,"excerpt":"Java EE 5 (J2EE 5) uses XML deployment descriptors for the configuration of the web-applications and web-components. 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Design patterns can be created to solve such problems in a specific context and that can be re-used every time\u2026","rel":"","context":"In &quot;FromSitesTree.com&quot;","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":66324,"url":"http:\/\/bangla.sitestree.com\/?p=66324","url_meta":{"origin":66340,"position":3},"title":"EJB Overview: EJB in a nutshell #Java Short Notes","author":"Author-Check- Article-or-Video","date":"July 18, 2021","format":false,"excerpt":"Objects provide encapsulation\/re-usability at the class level. A component can be comprised of multiple objects Component = logical groups of classes = distributed objects = business objects A component can be developed to address a specific enterprise applications. Hence, components can provide significant encapsulation\/re-usability in the partitioned enterprise problems. 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