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- Enterprise Archive file. A JAR archive that contains a J2EE application.
- Browse Related Terms: deployer, EAR file, EJB JAR file, enterprise bean provider, MIDlet, MIDlet suite, PRC (Palm Resource Code), programmatic security, RAR, WAR file
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- Electronic Business XML. A group of specifications designed to enable enterprises to conduct business through the exchange of XML-based messages. It is sponsored by OASIS and the United Nations Centre for the Facilitation of Procedures and Practices in Administration, Commerce and Transport (U.N./CEFACT).
- Browse Related Terms: B2B, ebXML, Java API for XML Registries (JAXR), OASIS, registry provider, UDDI (Universal Description Discovery and Integration), XML registry
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Enhanced Data GSM Environment (EDGE) is a new, faster version of GSM. EDGE is designed to support transfer rates up to 384Kbps and enable the delivery of video and other high-bandwidth applications. EDGE is the result of a joint effort between TDMA operators, vendors and carriers and the GSM Alliance.
- Browse Related Terms: 3G (Third generation), 802.11, AMPS (Advanced Mobile Phone Service), CDMA (Code-Division Multiple Access), CDMA One, CDMA2000, CDPD (Cellular Digital Packet Data), EDGE (Enhanced Data GSM Environment), FDMA (Frequency-division multiple-access), i-mode, JavaSpaces, LAN (Local area network), OTA (Over The Air), PCS (Personal Communications Service), PDC (Personal Digital Cellular), TDMA (Time-division multiple access), UMTS (Universal Mobile Telecommunications Service), W-CDMA (Wideband Code-Division Multiple Access), WAE (Wireless Application Environment), WDP (Wireless Datagram Protocol)
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A common part of the program development process. A source file is created initially and compiled. Syntax errors must be corrected in the editor before compiling it again. Once the program has been successfully compiled, it can be run. The program's execution might reveal logical errors, or the need for enhancements. A further edit-compile-run iteration is the result.
- Browse Related Terms: bytecode, classpath, compilation, compilation unit, compiler, edit-compile-run cycle, interpreter, Java Virtual Machine (JVM), JavaSafe, Just-in-time (JIT) Compiler, lexical, linker, Obfuscation, punctuation, runtime system, single line comment, Unicode
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- See Enterprise JavaBeans.
- Browse Related Terms: abstract schema name, activation, actor, bean-managed transaction, business logic, business method, caller principal, create method, EJB, EJB context, EJB home object, EJB module, EJB object, finder method, handle, message-driven bean, method permission, Passivation, remote interface, remove method, transaction attribute
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- A container that implements the EJB component contract of the J2EE architecture. This contract specifies a runtime environment for enterprise beans that includes security, concurrency, life-cycle management, transactions, deployment, naming, and other services. An EJB container is provided by an EJB or J2EE server.
- Browse Related Terms: ACID, Commit, container-managed transaction, EJB container, enterprise information system, enterprise information system resource, Java Transaction API (JTA), Java Transaction Service (JTS), JTA, JTS, OTS, resource manager, rollback, session bean, transaction, transaction isolation level, transaction manager
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- A vendor that supplies an EJB container.
- Browse Related Terms: container-managed sign-on, EJB container provider, EJB server provider, ISV, J2EE product provider, J2EE server, modal, non-modal, Web container provider
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- An object that allows an enterprise bean to invoke services provided by the container and to obtain the information about the caller of a client-invoked method.
- Browse Related Terms: abstract schema name, activation, actor, bean-managed transaction, business logic, business method, caller principal, create method, EJB, EJB context, EJB home object, EJB module, EJB object, finder method, handle, message-driven bean, method permission, Passivation, remote interface, remove method, transaction attribute
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- An object that provides the life-cycle operations (create, remove, find) for an enterprise bean. The class for the EJB home object is generated by the container's deployment tools. The EJB home object implements the enterprise bean's home interface. The client references an EJB home object to perform life-cycle operations on an EJB object. The client uses JNDI to locate an EJB home object.
- Browse Related Terms: abstract schema name, activation, actor, bean-managed transaction, business logic, business method, caller principal, create method, EJB, EJB context, EJB home object, EJB module, EJB object, finder method, handle, message-driven bean, method permission, Passivation, remote interface, remove method, transaction attribute
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- A JAR archive that contains an EJB module.
- Browse Related Terms: deployer, EAR file, EJB JAR file, enterprise bean provider, MIDlet, MIDlet suite, PRC (Palm Resource Code), programmatic security, RAR, WAR file
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- A deployable unit that consists of one or more enterprise beans and an EJB deployment descriptor.
- Browse Related Terms: abstract schema name, activation, actor, bean-managed transaction, business logic, business method, caller principal, create method, EJB, EJB context, EJB home object, EJB module, EJB object, finder method, handle, message-driven bean, method permission, Passivation, remote interface, remove method, transaction attribute
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- An object whose class implements the enterprise bean's remote interface. A client never references an enterprise bean instance directly; a client always references an EJB object. The class of an EJB object is generated by a container's deployment tools.
- Browse Related Terms: abstract schema name, activation, actor, bean-managed transaction, business logic, business method, caller principal, create method, EJB, EJB context, EJB home object, EJB module, EJB object, finder method, handle, message-driven bean, method permission, Passivation, remote interface, remove method, transaction attribute
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- Software that provides services to an EJB container. For example, an EJB container typically relies on a transaction manager that is part of the EJB server to perform the two-phase commit across all the participating resource managers. The J2EE architecture assumes that an EJB container is hosted by an EJB server from the same vendor, so it does not specify the contract between these two entities. An EJB server can host one or more EJB containers.
- Browse Related Terms: connection, connection factory, connector, Connector architecture, EJB server, JMS administered object, resource adapter, resource manager connection, resource manager connection factory, RMS (Record Management System)
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- A vendor that supplies an EJB server.
- Browse Related Terms: container-managed sign-on, EJB container provider, EJB server provider, ISV, J2EE product provider, J2EE server, modal, non-modal, Web container provider
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- A unit of XML data, delimited by tags. An XML element can enclose other elements.
- Browse Related Terms: CDATA, CSS, data, document, DTD, Element, HyperText Markup Language, JavaServer Pages (JSP), JSP directive, JSP page, JSP scriptlet, mixed-content model, Namespace, parser, PIXEL, raster, tag, XHTML, XML, XSLT
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A Java keyword used to execute a block of statements in the case that the test condition with the
ifkeyword evaluates to false.- Browse Related Terms: Break, break statement, CASE, case label, case sensitive, continue, Default, default label, else, if, JSP scripting element, switch, switch statement
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The availability of Java 2 Platform, Micro Edition technology under a restrictive license agreement that allows a licensee to leverage certain Java technologies to create and deploy a closed-box application that exposes no APIs.
- Browse Related Terms: core packages, EmbeddedJava Technology, J2EE, J2ME, J2SE, Java 2 Platform, Java 2 Platform, Enterprise Edition (J2EE platform), Java 2 Platform, Micro Edition (J2ME platform), Java 2 Platform, Standard Edition (J2SE platform), Java Platform Editions, Jini Technology, optional packages, profiles
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- A tag that does not enclose any content.
- Browse Related Terms: empty tag, JavaServer Pages Standard Tag Library (JSTL), JSP action, JSP custom action, JSP custom tag, JSP element, JSP standard action, JSP tag file, JSP tag handler, JSP tag library, JSTL
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Safeguarding the state of an objects by defining its attributes as
privateand channeling access to them through accessor and mutator methods.The localization of knowledge within a module. Because objects encapsulate data and implementation, the user of an object can view the object as a black box that provides services. Instance variables and methods can be added, deleted, or changed, but as long as the services provided by the object remain the same, code that uses the object can continue to use it without being rewritten. See also instance variable, instance method.
- Browse Related Terms: Attribute, class constant, class variable, constant, encapsulation, instance variable, local variable, magic number, method variable, model-view pattern, out of scope, overloading, static field, static variable, this, variable
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- A J2EE component that implements a business task or business entity and is hosted by an EJB container; either an entity bean, a session bean, or a message-driven bean.
- Browse Related Terms: abstract schema, bean-managed persistence, cascade delete, container-managed persistence, conversational state, enterprise bean, Enterprise JavaBeans Query Language (EJB QL), entity bean, home interface, persistence, persistent field, primary key, reentrant entity bean, relationship field, stateful session bean, stateless session bean