Raible's Wiki: POJOsToForms

-       Raible's Wiki




    Raible Designs

Wiki Home

News

Recent Changes

AppFuse
Homepage

  -  Korean

  -  Chinese

  -  Italian

  -  Japanese

QuickStart Guide

  - Chinese
 
  - French

  - German

  - Italian

  - Korean

  - Portuguese

  - Spanish

  - Japanese


User Guide

  - Korean

  - Chinese
 

Tutorials

  -  Chinese

  -  German

  -  Italian

  -  Korean

  -  Portuguese

  -  Spanish


FAQ

  -  Korean


Latest Downloads

Other Applications
Struts Resume

Security Example

Struts Menu



    




    

    
         
        Set your name in

        UserPreferences
            
    





       
       
       
       




    

Referenced by

DTOInForm
StrutsResumeSupport



    




   



   
   JSPWiki v2.2.33 
   



       
           

           

           
           
           


           Hide Menu
+            POJOsToForms
            



  
    Search Wiki:
    
    
  



         
         
            Your trail: 
         
      

      


      

      
         



      
          Difference between 
          version 15 
          and 
          version 14:
          

          
At line 37 added 46 lines.
----

I'm beginning to think this is best done as it currently is in [AppFuse], where all objects are translated to Action Forms (even nested lists of objects).  The reason?  Because then my view is not tied to my model.  If I start using POJOs in my view, then I'm tightly coupling my model to my view.  And besides, since I've already done it this way - there's really no more work to be done.  I have a DateConverter that's not in AppFuse that might be useful for converting dates (it's pretty simple really).  Here's an example:
{{{
public class DateConverter implements Converter {
    //~ Instance fields ========================================================

    protected Log log = LogFactory.getLog(ListConverter.class);

    //~ Methods ================================================================

    /**
     * Convert a String to a Date
     *
     * @param type the class type to output
     * @param value the object to convert
     */
    public Object convert(Class type, Object value) {
    	log.debug("entered 'convert' method...");
        // for a null value, return null
        if (value == null) {
            return null;
        } else {
            if (value instanceof String) {
            	log.debug("value (" + value + ") instance of String");
                try {
                	if (StringUtils.isEmpty(value.toString())) {
                		return null;
                	}
                    return DateUtil.convertStringToDate(value.toString());
                } catch (ParseException pe) {
                    pe.printStackTrace();
                }
            } else if (value instanceof Date) {
				log.debug("value (" + value + ") instance of Date");
                return DateUtil.convertDateToString((Date) value);
            }
        }

        throw new ConversionException("Could not convert "
                                      + value.getClass().getName() + " to "
                                      + type.getName() + "!");
    }
}
}}}
Of course, the DateUtil class would help too, but this will give you a simple idea of how to do date conversions.  Just register this class in BaseManager.java.


          

      

      

      
      Back to POJOsToForms,
       or to the Page History.
       

      

      

      

      

      

      

      

      Show Menu
-POJOsToForms
+    Search Wiki:
 At line 37 added 46 lines.
+----
+I'm beginning to think this is best done as it currently is in [AppFuse], where all objects are translated to Action Forms (even nested lists of objects).  The reason?  Because then my view is not tied to my model.  If I start using POJOs in my view, then I'm tightly coupling my model to my view.  And besides, since I've already done it this way - there's really no more work to be done.  I have a DateConverter that's not in AppFuse that might be useful for converting dates (it's pretty simple really).  Here's an example:
+{{{
+public class DateConverter implements Converter {
+    //~ Instance fields ========================================================
+    protected Log log = LogFactory.getLog(ListConverter.class);
+    //~ Methods ================================================================
+    /**
+     * Convert a String to a Date
+     *
+     * @param type the class type to output
+     * @param value the object to convert
+     */
+    public Object convert(Class type, Object value) {
+    	log.debug("entered 'convert' method...");
+        // for a null value, return null
+        if (value == null) {
+            return null;
+        } else {
+            if (value instanceof String) {
+            	log.debug("value (" + value + ") instance of String");
+                try {
+                	if (StringUtils.isEmpty(value.toString())) {
+                		return null;
+                	}
+                    return DateUtil.convertStringToDate(value.toString());
+                } catch (ParseException pe) {
+                    pe.printStackTrace();
+                }
+            } else if (value instanceof Date) {
+				log.debug("value (" + value + ") instance of Date");
+                return DateUtil.convertDateToString((Date) value);
+            }
+        }
+        throw new ConversionException("Could not convert "
+                                      + value.getClass().getName() + " to "
+                                      + type.getName() + "!");
+    }
+}
+}}}
+Of course, the DateUtil class would help too, but this will give you a simple idea of how to do date conversions.  Just register this class in BaseManager.java.