Beans Development Kit (BDK) Analysis (2)

zhaozj2021-02-16  52

Two. Frame analysis

First, you have to analyze the framework of the source code, first get the source code, the download address of the source code is (http://java.sun.com/beans/). Directory introduction:

l Beanbox Directory: Beabox source program, class file, support lib, and execute files and compilation configurations.

l Demo Directory: Some example source code files used to demonstrate JavaBean.

l DOC Directory: About BDK documents and API manuals.

l Jars directory: Store JAR files that need to be loaded into the JavaBean of the toolbar.

llication: JAR files that support library methods tracking.

l gnumakefile file: Compile configuration file.

l Infobus.jar file: Support Infobus JAR file.

llicense.html file: license.

l Makefile file: Compile configuration file.

l Readme.html file: Readme file.

File structure

The directory structure is shown below:

Source code directory tree:

├ - SUN

│ ├─Beanbox

│ │ └─simpleresource

└ -SUNW

├─beanbox

├─demo

│ ├-buttons

│ ├─classfile

│ ├─delegator

│ ─CapsulatedEvents

│ ├─jelly

│ ├─juggler

│ ├─MethodTracer

│ ├─Misc

│ ├─molecule

│ ├─Quote

│ ├─Select

│ ├ --sort

│ ├─test

│ └ - TRANSITIONAL

└ -wrapper

Class introduction

For the convenience of understanding, the probably function of each class is first described, first let everyone have a preliminary understanding. For the framework to explain, the features of the class below the Demo directory are not introduced.

Sun.beanbox

l AboutDialog.java Beanbox About Dialog

l AppletClassGenerator automatically generates Applet class code for Applet

l AppletGenerator.java generates an applet's JAR file by combined Beans

l beanbox.java as a container of JavaBean

l Beanboxframe.java As a top frame to accommodate the Beanbox, manage menu and track the current focus

l ClassCompiler.java performs classes that compile Java source code, such as Sun.Tools.javac. *

l CustomizerDialog.java As an ordinary component editor, encapsulated a Dialog

l doonbean.java's interface to execute when creating beans

l EditedAdaptor.java Attribute Editing Adapters, implements the PropertyChangeListener interface

l ErrorDialog.java throws a modal error Dialog, inherits MessageDialog

l atTargetDialog.java Dialog box for custom events for focus beans

l FileExtension.java The class used to filter files, implements the hook between the FileNameFilter interface L hookupmanager.java management event source bean and the target bean, will generate a class for each hook, and is compiled as an adapter to ClassLoader.

l Ibsupport.java uses this class to support InfoBus mechanisms and bean communications

l IndentedStream.java This tool class is used to generate a source code file.

l InputStreamProducer.java This interface provides an input stream

l Jaraccess.java This class implements a tool that uses JAR file format to create a file.

l JARENTRYSOURCE.JAVA is used to request a JAR file

l Jarinfo.java represents a loaded JAR file that contains information about the file.

l JarLoader.java reads the contents of JAR files

l MakeAppdlg.java requires a dialog box for making applets

l Manifest.java represents the manifest information of the JAR file

l MessageDialog.java popped up the dialog box of the prompt information

l messageheader.java definition message head

l ObjectInputStreamLoader.java As the subclass of ObjectInputStream, the agent is loaded for the existing ClassLoader

l Ourlabel.java represents an invisible bean with a string

l Propertycanvas.java supports a property value on a CanvaS

l PropertyDialog.java holds attribute editor with a general editor

l PropertyHookupManager.java Use hooks between properties to facilitate changes in an object to be delivered to properties related to it.

l PropertyNameDialog.java Properties dialog The properties of a given source object

l PropertySelector.java to support the label selection of the attribute editor

l PropertySheet.java property Edit the table listing all properties that can be edited

l PropertyText.java used to support text input of the property editor

l Report.java Report from internal information from a given Bean class

l SimpleClassLoader.java inherits ClassLoader and is used by JarLoader to load classes and resources.

l StartFrame.java is used to display a welcome information at the beginning of Beanbox.

l Timer.java tool class for internal time operation

l Toolbox.java shows charts and ID strings for JavaBean available for Beanbox

l WindowCloser.java tool class, use to capture the closing event of the target window

l Wrapper.java is used to track each bean in the design window in Beanbox.

l WrappeReventinfo.java event listener hook information

l WrapperPropertyEventInfo.java inherits the WrappeReventInfo class for connecting to a specific attribute 2. Sun.beanbox.simpleresource

l Handler.java inherits the URLStreamHandler class, requested for resources

l SimpleResourceConnection.java inherits the URLConnection class for resources for resources and get

3. SUNW.Beanbox

l Appletsupport.java In the generated applet, you need to support Applet instantiation.

l PropertyHookup.java Management of hook information between properties to facilitate attribute changes to notify the relevant properties

4. SUNW.WRAPPER

l Beanwrapper.java inherited the Applet class, to support the bean that itself is not applet, so that they can display directly in the HTML documentation directly.

Basic framework

I am aimed at the understanding of the framework of BDK.

The program running interface is as follows:

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