Re: Eclipse Woes
Re: Eclipse Woes
- Subject: Re: Eclipse Woes
- From: Lachlan Deck <email@hidden>
- Date: Wed, 21 Nov 2007 07:05:09 +1100
On 21/11/2007, at 5:57 AM, Fred Shurtleff wrote:
I am having a number of problems with Eclipse not being able to
find Variables/Components/Methods, etc sporadically over several
projects, and wanted see if others have run into this issue.
Have you tried Project > Clean... 'all'?
For example, one page throws up a dialogue window - 'Buggy key in
WoComponent' > Reason: This WOComponent does not have an instance
variable of the name testObject or _testObject, nor a method
named.... (It also gives a the same message in the console window)
But the component java file does in fact contain this var.
I assume testObject is public?
Are any child components also trying to reference testObject?
Another example, I have a link with an action class &
directActionName binding (DirectAction & Page1Action), and Eclipse
reports:
Error: java.lang.NoSuchMethodException:
com.webobjects.appserver.WODirectAction.page1Action()
But this action is in fact in the DirectAction class.
Yeah this is a problem with the normal Direct action request
handler's class resolving being a bit dumb. It doesn't resolve
DirectAction to your.apps.DirectAction class... and so defaults to
com.webobjects.appserver.WODirectAction which is your superclass.
The solution for this involves assisting WO in finding /your/ direct
action classes by adjusting the request path when needed... similar
to how I offered a fix for finding the session class you mentioned
below which Keiran had reposted...
So, the way I've gone around this one is to subclass
com.webobjects.appserver._private.WODirectActionRequestHandler (or
er.extensions.ERXDirectActionRequestHandler... either will do) so now
AnyActionClass.withSomeAction resolves to your.app.AnyActionClass
etc. Not sure how others are solving this, but this works reliably
and is in production apps if that helps.
(perhaps some of this is a candidate for being pushed down into
ERXDirectActionRequestHandler)
/**
* In app constructor do:
* <code>
* registerRequestHandler( new ISHDirectActionRequestHandler(),
directActionRequestHandlerKey() );
* setDefaultRequestHandler( requestHandlerForKey
( directActionRequestHandlerKey() ) ); // optional
* </code>
*
* @author ldeck
*/
public class ISHDirectActionRequestHandler extends
ERXDirectActionRequestHandler
{
/**
*@param path -
* the request path
*@return full package direct action class name and direct action.
*/
public static NSArray getDirectActionClassAndNameForPath( NSArray
path )
{
NSMutableArray adjustedPath;
String actionClassName;
adjustedPath = path == null ? new NSMutableArray() :
path.mutableClone();
actionClassName = adjustedPath.count() > 0 ? ( String )
adjustedPath.objectAtIndex( 0 ) : "";
// 1. Do we have a legit actionClass already?
if ( actionClassName.length() > 0 && Character.isUpperCase
( actionClassName.charAt( 0 ) ) )
{
if ( adjustedPath.count() == 1 )
adjustedPath.addObject( "default" );
}
else if ( "".equals( actionClassName ) )
{
actionClassName = "DirectAction";
if ( adjustedPath.count() == 0 )
adjustedPath.addObject( actionClassName );
else
adjustedPath.replaceObjectAtIndex( actionClassName, 0 );
if ( adjustedPath.count() == 1 )
adjustedPath.addObject( "default" );
}
else if ( "null".equals( actionClassName ) )
{
actionClassName = "DirectAction";
adjustedPath.replaceObjectAtIndex( actionClassName, 0 );
if ( adjustedPath.count() == 1 )
adjustedPath.addObject( "default" );
}
else if ( path.count() == 1 && !modRewriteEnabled() )
{
actionClassName = "DirectAction";
adjustedPath.insertObjectAtIndex( actionClassName, 0 );
}
else
{
// Snipping custom mod-unrewrite compatibility as this
// involves extended action paths that rely on app logic.
// Come back to me if you want this.
// e.g., could be achieved by creating
ERXApplication.erxApplication()._unrewriteURL( ... );
}
// finally, adjust package of direct action class to your app's
package
if ( actionClassName.indexOf( '.' ) < 0 && Character.isUpperCase
( actionClassName.charAt( 0 ) ) )
{
String pkg = WOApplication.application().getClass().getPackage
().getName();
adjustedPath.replaceObjectAtIndex( pkg + "." + actionClassName, 0 );
}
return adjustedPath;
}
/**
*@param path -
* the request path
*@return an array of user friendly action class and action names.
i.e., without the package.
*/
public static NSArray getUserActionClassAndNameForPath( NSArray path )
{
NSMutableArray fixed = getDirectActionClassAndNameForPath
( path ).mutableClone();
if ( fixed.count() > 0 )
{
String actionClass = ( String )fixed.objectAtIndex( 0 );
int index = actionClass.lastIndexOf( '.' );
if ( index >= 0 )
{
actionClass = actionClass.substring( index + 1 );
fixed.replaceObjectAtIndex( actionClass, 0 );
}
}
// mod-unwrite snippet follows... (optional)
if ( fixed.count() > 1 )
{
String userActionPath = fixed.removeObjectAtIndex( 1 ).toString
().replaceAll( "\\s", "+" );
fixed.addObjectsFromArray( NSArray.componentsSeparatedByString
( userActionPath, ModUnwriteDelimiter ) );
}
return fixed;
}
public ISHDirectActionRequestHandler()
{
super();
}
public ISHDirectActionRequestHandler( String actionClassName, String
defaultActionName, boolean shouldAddToStatistics )
{
super( actionClassName, defaultActionName, shouldAddToStatistics );
}
/**
*Overrides super to adjust the direct action class name to the full
class name.
*
*@see
com.webobjects.appserver._private.WOActionRequestHandler#getRequestActio
nClassAndNameForPath(com.webobjects.foundation.NSArray)
*/
public Object[] getRequestActionClassAndNameForPath( NSArray path )
{
NSArray fixedPath = getDirectActionClassAndNameForPath( path );
return super.getRequestActionClassAndNameForPath( fixedPath );
}
}
These errors are a real 'show stopper'- how do you proceed from here?
A while back I ran into a similar problem where the project could
not find a variable in the session class(that was in fact there),
and Keiran K offered a snippet of code to use the project's session
class. But now this problem seems to have plagued other places in
the project.
Right. The above is a similar problem where WO doesn't find your
classes (now that everyone's using packages these days)... but a
little oil, and it's fixed :-)
with regards,
--
Lachlan Deck
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| | >Eclipse Woes (From: Fred Shurtleff <email@hidden>) |