org.jboss.ejb.plugins.jaws.metadata: public class: ValueObjectHelper

org.jboss.ejb.plugins.jaws.metadata
public class: ValueObjectHelper [javadoc | source]

java.lang.Object
   org.jboss.ejb.plugins.jaws.metadata.ValueObjectHelper

Provide static method to obtain a private attribute of a value object using its get method, and to set the value of a private attribute using its set method.

WARNING : These methods use Reflection so OK to run them at deployment time but at run time, we should better catch the Method get/set at CMPFieldMetaData level. So that the only invoke() method will be called at run time. This still needs to be done.

author: < - a href="mailto:vincent.harcq@hubmethods.com">Vincent Harcq

version: $ - Revision: 1.3 $

Method from org.jboss.ejb.plugins.jaws.metadata.ValueObjectHelper Summary:
getNestedFieldType, getValue, setValue

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.jboss.ejb.plugins.jaws.metadata.ValueObjectHelper Detail:
public static Class getNestedFieldType(Class ejbClass, String name) throws NoSuchMethodException { StringTokenizer st = new StringTokenizer(name,"."); Class clazz = ejbClass; while (st.hasMoreTokens()) { String tmp = st.nextToken(); try { // First try to find a public Field Field tmpField = clazz.getField(tmp); clazz = tmpField.getType(); } catch (NoSuchFieldException e) { // Else try to find the getMethod Method m = clazz.getMethod(getGetMethod(tmp),null); // TODO what about primitive types ? clazz = m.getReturnType(); } } return clazz; }
public static Object getValue(Object o, String fieldName) throws InvocationTargetException, NoSuchMethodException, IllegalAccessException { Method m=o.getClass().getMethod(getGetMethod(fieldName),null); return m.invoke(o,null); }
public static void setValue(Object o, String fieldName, Object value) throws InvocationTargetException, NoSuchMethodException, IllegalAccessException { if (value == null) return; Class[] paramTypes= { value.getClass() }; Method m=o.getClass().getMethod(getSetMethod(fieldName),paramTypes); Object[] args = { value }; m.invoke(o,args); }

Method from org.jboss.ejb.plugins.jaws.metadata.ValueObjectHelper Detail:

 public static Class getNestedFieldType(Class ejbClass,
    String name) throws NoSuchMethodException {
      StringTokenizer st = new StringTokenizer(name,".");
      Class clazz = ejbClass;
      while (st.hasMoreTokens())
      {
         String tmp = st.nextToken();
         try
         {
             // First try to find a public Field
             Field tmpField = clazz.getField(tmp);
             clazz = tmpField.getType();
         }
         catch (NoSuchFieldException e)
         {
             // Else try to find the getMethod
             Method m = clazz.getMethod(getGetMethod(tmp),null);
             // TODO what about primitive types ?
             clazz = m.getReturnType();
         }
      }
      return clazz;
}

 public static Object getValue(Object o,
    String fieldName) throws InvocationTargetException, NoSuchMethodException, IllegalAccessException {
      Method m=o.getClass().getMethod(getGetMethod(fieldName),null);
      return m.invoke(o,null);
}

 public static  void setValue(Object o,
    String fieldName,
    Object value) throws InvocationTargetException, NoSuchMethodException, IllegalAccessException {
   	  if (value == null) return;
      Class[] paramTypes= { value.getClass() };
      Method m=o.getClass().getMethod(getSetMethod(fieldName),paramTypes);
      Object[] args = { value };
      m.invoke(o,args);
}