public static <A extends Annotation> void getAnnotations(
final Class<?> fromClass,
final Class<A> annotationType,
final Map<String, A> annotations,
final boolean climbTree) {
final Map<String, PropertyHelper> properties = PropertyHelper.getFromClass(fromClass);
for (final Entry<String, PropertyHelper> entry : properties.entrySet()) {
final PropertyHelper ph = entry.getValue();
final A annotation = ph.getAnnotation(annotationType);
if (annotation != null) {
annotations.put(entry.getKey(), annotation);
}
}
if (climbTree && !fromClass.getSuperclass().equals(Object.class)) {
getAnnotations(fromClass.getSuperclass(), annotationType, annotations, true);
}
}
/**
* Get properties of the given type. Results are cached, so call as often as you want.
*
* @param klass The class to examine for properties.
* @return A map of the property name, to an instance of the helper.
*/
public static Map<String, PropertyHelper> getFromClass(final Class<?> klass) {
if (GLOBAL_PROPERTY_MAP.containsKey(klass)) {
return GLOBAL_PROPERTY_MAP.get(klass);
}
final Map<String, PropertyHelper> propertyList = new LinkedHashMap<String, PropertyHelper>();
addHelpersFromFields(klass, propertyList, true);
// but if there is a getter or setter in the super class for the private
// field, it will be
// detected in these
// loops
for (final Method method : klass.getMethods()) {
final String methodName = method.getName();
if (methodName.startsWith("get") && method.getParameterTypes().length == 0) {
final String propertyName = getPropertyNameFromMethodName(methodName);
PropertyHelper prop = propertyList.get(propertyName);
// make an attempt to look for the field
final Field field = getField(klass, propertyName);
if (prop == null) {
prop = new PropertyHelper(field, method, null);
propertyList.put(propertyName, prop);
} else {
prop.getter = method;
prop.field = field;
}
}
if (methodName.startsWith("set") && method.getParameterTypes().length == 1) {
final String propertyName = getPropertyNameFromMethodName(methodName);
PropertyHelper prop = propertyList.get(propertyName);
// make an attempt to look for the field
final Field field = getField(klass, propertyName);
if (prop == null) {
prop = new PropertyHelper(field, null, method);
propertyList.put(propertyName, prop);
} else {
prop.setter = method;
prop.field = field;
}
}
}
synchronized (GLOBAL_PROPERTY_MAP) {
GLOBAL_PROPERTY_MAP.put(klass, propertyList);
}
return propertyList;
}