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117 lines
4.2 KiB
Plaintext
117 lines
4.2 KiB
Plaintext
Retep Tools Implementation
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--------------------------
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The tools are designed to be put into a single jar file, but each one is
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executable either individually or part of one single application.
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To run the big application, you can either:
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java -jar retepTools.jar
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or with the retepTools.jar in the classpath run:
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java uk.org.retep.tools.Main
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Windows users: For you you can also double click the retepTools.jar as windows
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will automatically run javac for you.
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To run the individual tools, you must have the .jar file in your classpath and
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then run the relevant Main class.
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Tool Type Class
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------------------------------------------------------------------------------
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pg_hba.conf Editor/repairer Editor uk.org.retep.util.hba.Main
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Properties Editor Editor uk.org.retep.util.proped.Main
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Layout of the classes
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---------------------
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Simply, tools that work on property files (Java properties, resource files,
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configuration settings - pg_hba.conf for example) go under uk.org.retep.util in
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their own package. Other utility classes (like PropertyIO) go in to the
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uk.org.retep.util.misc package except for certain ones where they are related.
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ie: TableModels. In swing you have JTable which uses a TableModel to display
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(and possibly update) some data. These go under uk.org.retep.util.models where
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you will find PropertiesTableModel for example. This one allows a Properties
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object to be displayed & updated.
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Come core classes like Logger, ExceptionDialog etc go into the main
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uk.org.retep.util package.
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Directory/Package Contents
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------------------------------------------------------------------------------
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uk.org.retep Home of the tools.properties file
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uk.org.retep.tools The main all-in-one application
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uk.org.retep.dtu The Data Transform Unit
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uk.org.retep.util Core utility classes
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uk.org.retep.util.hba pg_hba.conf editor/repairer
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uk.org.retep.util.misc Misc utility classes
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uk.org.retep.util.models Swing table models
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uk.org.retep.util.proped Property Editor
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uk.org.retep.util.xml.core Basic XML Factory
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uk.org.retep.util.xml.jdbc JDBC/XML interface
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uk.org.retep.util.xml.parser Simple SAX parser
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Structure of a tool
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-------------------
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Each tool has at least 2 base classes, and an entry in the tools.properties
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file. For this example, I'll show you the Properties Editor:
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Base package uk.org.retep.util.proped
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Main tool class uk.org.retep.util.proped.PropertyEditor
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Standalone class uk.org.retep.util.proped.Main
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The main tool class is the entry point used by the main application. Because
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they are used in a GUI, this class must extend javax.swing.JComponent and
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implement the uk.org.retep.tools.Tool interface. (NB: You will find I always
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use JPanel, but JComponent is used here so that any swing class can be used
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you are not limited to JPanel.)
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The standalone class is a basic static class that implements the main method.
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It should extend the uk.org.retep.misc.StandaloneApp class and be written along
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the lines of the following example:
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import uk.org.retep.util.StandaloneApp;
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import javax.swing.JComponent;
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public class Main extends StandaloneApp
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{
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public Main(String[] args)
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throws Exception
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{
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super(args);
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}
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public JComponent init()
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throws Exception
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{
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// Your initialisation here. In this case the PropertyEditor
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PropertyEditor panel = new PropertyEditor();
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// do stuff here, ie load a file if supplied
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// return the tool
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return panel;
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}
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public static void main(String[] args)
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throws Exception
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{
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Main main = new Main(args);
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main.pack();
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main.setVisible(true);
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}
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}
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you will find a template in the uk.org.retep.util.Main class. Simply copy this
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classes source, as it gives you the basic stub. Just add your own implementation
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if init() like the one above. Look at the full Main class for the
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PropertiesEditor to see how to get at the command line args.
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By convention, the standalone class is named Main.
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