public static boolean validateBeanFields(Object obj) {
if (obj == null)
return false;
Class objClass = obj.getClass();
Method[] methods = objClass.getMethods();
for (Method aMethod : methods) {
String methodName = aMethod.getName();
if (methodName.startsWith("get")) {
try {
Object retObj = aMethod.invoke(obj, null);
if (retObj == null)
return false;
else if (retObj instanceof Enum) // skip enum values
continue;
else if (retObj instanceof String) {
if (((String)retObj).length() == 0)
return false;
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
}
return true;
}
Tips and experience about developing websites with various technologies
Tuesday, April 14, 2009
Java Bean validation using reflection
Labels:
java reflection bean validation
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