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JavaBeans FAQ Home Page

FAQ Manager is guru Govind Seshadri PREMIUM.

JavaBeans are reusable software components written in the Java programming language, designed to be manipulated visually by a software develpoment environment. [FAQ Previously managed by John Zukowski].

What's New

How can I send an attachment without having to use a physical file?
Java:API:JavaBeans:Activation, Java:API:JavaMail:Attachments
John Zukowski PREMIUM, Aug 31, 2006
Instead of using FileDataSource, use a different DataSource. You can find a ByteArrayDataSource example of this in the demo directory that comes with early...

What is the easiest way to convert my java beans into xml?
Java:API:JavaBeans, Java:Language, Java:API:Serialization
Davanum Srinivas PREMIUM, Mar 30, 2002
Use java.beans.XMLEncoder. XMLEncoder e = new XMLEncoder( new BufferedOutputStream( new FileOutputStre...

What is Glasgow?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Jan 31, 2002
Glasgow is an early code name for the JavaBeans version after Java 1.1. It allows developers to create more sophisticated JavaBeans components offering...

Where can I find the API docs for the JavaBeans Activation Framework?
Java:API:JavaMail, Java:API:JavaBeans:Activation
John Zukowski PREMIUM, Dec 29, 2001
These come with the implementation download and with J2EE. They do not come with the JavaMail implementation. You can view them online at http://java....

What is the correct way to invoke Beans.instantiate()?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Dec 28, 2001
Typically, you should invoke the method as: Beans.instantiate(this.getClass().getClassLoader(), yourBeanName) Beans.instantiate() basically loads...

I'm currently working on a project where the core development is a set of JavaBeans implementing Neural Network data analysis. I propose to implement the JUnit tests but the setXXX() should return...
Java:API:JavaBeans
Bozidar Dangubic PREMIUM, Nov 28, 2001
1. it is not accepted. 2. if you specify something other than void in the setXXX(), you no longer have a JavaBean. period. it is now just a plain ol'...

What is the BeanContext API all about?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Oct 29, 2001
The BeanContext API is a core API in J2SDK. Basically, it enables a Bean to interrogate its environment for certain capabilities and available services....

Where can I find more information on Long Term Persistence (LTP) API for JavaBeans?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Sep 27, 2001
The Long Term Persistence for JavaBeans (LTP) is a an API which supports a general mechanism for serializing JavaBeans to and from XML. Some recent articles...

What are Xbeans?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Aug 31, 2001
An Xbean is a JavaBean that takes XML as input, processes it in some fashion and then passes XML on to the next Xbean in the chain. Xbeans is an open source...

How can I easily enable the persistence of JavaBeans components as XML files?
Java:API:JavaBeans
Govind Seshadri PREMIUM, Aug 31, 2001
The persistence scheme added in JDK 1.4 uses instances of the XMLEncoder class to write out files representing...

How can I display bar codes in my Java program?
Java:API:JavaBeans, Java:API:Servlets:Images, Java:API:Applets:Images
John Zukowski PREMIUM, Jul 25, 2001
IDAutomation has a set of commercial beans, applets, and servlets for dynamic bar code generation.

Where can I find the BeanInfo classes for the Swing components
Java:API:Swing:Widgets, Java:API:JavaBeans
John Zukowski PREMIUM, Jul 25, 2001
These are found in the dt.jar file that comes with the JDK. They are NOT in your CLASSPATH by default.

How should I model parameter passing in JSP and the relationship between JSP and JavaBeans using UML?
Java:API:JavaBeans, Process:UML, Java:API:JSP:Architecture
jim conallen, May 31, 2001
Parameters There are two principal ways to model parameters being passed from a HTML source on the client to a <<server page>> on the...

Where can I learn (more) about using various XML (eXtensible Markup Language) technologies (such as DTDs, Schemas, SOAP, DOMs, etc.) with Java?
Tools:ANTLR, Java:API:JavaBeans, Java:Language, Tools, General:FAQs, Tools:AppServer, Java:API:Servlets:HTTP/HTML/JavaScript
John Mitchell PREMIUM, May 31, 2001
Check out the jGuru XML FAQ.

Where can I learn (more) about using the Java Swing windowing components to build GUIs (Graphical User Interfaces)?
Java:API:AWT, Java:API:Media, Java:API:JavaBeans, Java:API:Applets, Java:Language, Tools:IDE, General:FAQs
John Mitchell PREMIUM, May 30, 2001
Check out the jGuru Swing FAQ.

Where can I learn (more) about using design patterns with Java?
Java:API:EJB, Java:API:JavaBeans, Java:Language, Process:UML, General:FAQs, Process:Designing
John Mitchell PREMIUM, May 30, 2001
Check out the jGuru Patterns FAQ.

Where can I learn (more) about Java JSP (JavaServer Pages)?
Languages:Markup:XML, Java:API:Servlets, Java:API:JavaBeans, Java:Language, General:FAQs, Tools:AppServer:WebServer:Tomcat:Jasper (JSP)
John Mitchell PREMIUM, May 30, 2001
Check out the jGuru JSP FAQ.

Where can I learn (more) about the Java programming language syntax and semantics?
Java:API:JavaBeans, Tools, Tools:IDE:JBuilder, Programming:Concepts:Threads, Certification:Java, General:FAQs, JavaScript:Integration:Java
John Mitchell PREMIUM, May 30, 2001
Check out the jGuru JavaLanguage FAQ.

Where can I learn (more) about Java's EJB (Enterprise JavaBeans)?
Java:API:JMS, Java:API:JavaBeans, Java:API:JDBC, Java:API:JNDI, Java:Language, Tools, Distributed computing:CORBA, Process:UML, General:FAQs, Tools:AppServer, Tools:AppServer:WebServer:Tomcat
John Mitchell PREMIUM, May 30, 2001
Check out the jGuru EJB FAQ.

Is it possible to create static properties/methods of a bean class? Does the beans spec cover this and can builder tools handle a singleton bean, for example?
Java:API:JavaBeans
John Zukowski PREMIUM, Mar 30, 2001
There is nothing that stops you from creating static methods within a Bean class. However, they won't be treated as properties. Also not supported is creating...

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