Got a reason why it 'doesn't work'?
I've successfully used Digester from non static methods several times.
--
dIon Gillard, Multitask Consulting
Blog: http://blogs.codehaus.org/people/dion/
Mike Zatko <[EMAIL PROTECTED]> wrote on 23/12/2003 12:00:54 PM:
> Howdy,
> I just started looking into the Digester components and I have come
> across a peculiarity as follows. I began by using a precanned example of
> using Digester off of an article on IBM's site I think. Basically, all
> of the Digester code occurrs in the static main method. For my
> particular app, I didn't want this and wanted to do my Digester code
> inside an instantiated object. But, it doesn't work. All it was was a
> simple copy and paste of code from a static main method to inside a
> method of a class inside the same package as before. Why is this?
>
> Here is the code. The first code example works. The second one doesn't.
>
>
> public class ConfigParser
> {
> /**
> * Prints the contact information to standard output.
> *
> * @param contact the <code>Contact</code> to print out
> */
> public void addDatabase(Database database)
> {
> System.out.println("URL: " + database.getUrl());
> System.out.println("Driver: " + database.getDriver());
> System.out.println("User Name: " + database.getUserName());
> System.out.println("Password: " + database.getPassword());
> }
>
> public void addTable(Table table)
> {
> System.out.println("Name: " + table.getName());
> System.out.println("File: " + table.getFile());
> }
>
> /**
> * Configures Digester rules and actions, parses the XML file
specified
> * as the first argument.
> *
> * @param args command line arguments
> */
> public static void main(String[] args)
> {
> try {
> // instantiate Digester and disable XML validation
> Digester digester = new Digester();
> digester.setValidating(false);
>
> // instantiate AddressBookParser class
> digester.addObjectCreate("configuration",
ConfigParser.class);
> // instantiate Contact class
> digester.addObjectCreate("configuration/database",
> Database.class );
>
> // set type property of Contact instance when 'type'
> attribute is found
> //digester.addSetProperties("configuration/contact",
> "type", "type" );
>
> // set different properties of Contact instance using
> specified methods
> digester.addCallMethod("configuration/database/url",
> "setUrl", 0);
> digester.addCallMethod("configuration/database/driver",
> "setDriver", 0);
> digester.addCallMethod("configuration/database/user-name",
> "setUserName", 0);
> digester.addCallMethod("configuration/database/password",
> "setPassword", 0);
>
> // call 'addContact' method when the next
> 'address-book/contact' pattern is seen
> digester.addSetNext("configuration/database",
"addDatabase");
>
>
> digester.addObjectCreate("configuration/table", Table.class
);
> digester.addSetProperties("configuration/table", "name",
> "name");
> digester.addCallMethod("configuration/table/backup-file",
> "setFile", 0);
> digester.addSetNext("configuration/table", "addTable");
>
> // now that rules and actions are configured, start the
> parsing process
> ConfigParser abp = (ConfigParser)digester.parse(new
> File("config-digest.xml"));
>
>
> ConfigParser configParser = new ConfigParser();
> }
> catch (Exception e)
> {
> e.printStackTrace();
> }
> }
> }
>
>
>
>
>
>
> Second one:
>
> public class ConfigParser
> {
> public ConfigParser() throws IOException, SAXException
> {
> // instantiate Digester and disable XML validation
> Digester digester = new Digester();
> digester.setValidating(false);
>
> // instantiate AddressBookParser class
> digester.addObjectCreate("configuration", ConfigParser.class);
> // instantiate Contact class
> digester.addObjectCreate("configuration/database",
Database.class );
>
> // set type property of Contact instance when 'type' attribute
> is found
> //digester.addSetProperties("configuration/contact",
> "type", "type" );
>
> // set different properties of Contact instance using specified
> methods
> digester.addCallMethod("configuration/database/url", "setUrl",
0);
> digester.addCallMethod("configuration/database/driver",
> "setDriver", 0);
> digester.addCallMethod("configuration/database/user-name",
> "setUserName", 0);
> digester.addCallMethod("configuration/database/password",
> "setPassword", 0);
>
> // call 'addContact' method when the next 'address-book/contact'
> pattern is seen
> digester.addSetNext("configuration/database", "addDatabase");
>
>
> digester.addObjectCreate("configuration/table", Table.class );
> digester.addSetProperties("configuration/table", "name",
"name");
> digester.addCallMethod("configuration/table/backup-file",
> "setFile", 0);
> digester.addSetNext("configuration/table", "addTable");
>
> // now that rules and actions are configured, start the parsing
> process
> ConfigParser abp = (ConfigParser)digester.parse(new
> File("config-digest.xml"));
> }
>
> /**
> * Prints the contact information to standard output.
> *
> * @param contact the <code>Contact</code> to print out
> */
> public void addDatabase(Database database)
> {
> System.out.println("URL: " + database.getUrl());
> System.out.println("Driver: " + database.getDriver());
> System.out.println("User Name: " + database.getUserName());
> System.out.println("Password: " + database.getPassword());
> }
>
> public void addTable(Table table)
> {
> System.out.println("Name: " + table.getName());
> System.out.println("File: " + table.getFile());
> }
>
> /**
> * Configures Digester rules and actions, parses the XML file
specified
> * as the first argument.
> *
> * @param args command line arguments
> */
> public static void main(String[] args)
> {
> try {
> ConfigParser configParser = new ConfigParser();
> }
> catch (Exception e)
> {
> e.printStackTrace();
> }
> }
> }
>
>
> Thanks,
> Mike Zatko
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
