org.codehaus.jackson.mrbean.BeanUtil Maven / Gradle / Ivy
package org.codehaus.jackson.mrbean;
import java.lang.reflect.Member;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class BeanUtil
{
protected static boolean isConcrete(Member member)
{
int mod = member.getModifiers();
return (mod & (Modifier.INTERFACE | Modifier.ABSTRACT)) == 0;
}
/**
* Method that will find all sub-classes and implemented interfaces
* of a given class or interface. Classes are listed in order of
* precedence, starting with the immediate super-class, followed by
* interfaces class directly declares to implemented, and then recursively
* followed by parent of super-class and so forth.
* Note that Object.class is not included in the list
* regardless of whether endBefore argument is defined or not.
*
* @param endBefore Super-type to NOT include in results, if any; when
* encountered, will be ignored (and no super types are checked).
*/
public static List> findSuperTypes(Class cls, Class endBefore)
{
return findSuperTypes(cls, endBefore, new ArrayList>());
}
public static List> findSuperTypes(Class cls, Class endBefore, List> result)
{
_addSuperTypes(cls, endBefore, result, false);
return result;
}
private static void _addSuperTypes(Class cls, Class endBefore, Collection> result, boolean addClassItself)
{
if (cls == endBefore || cls == null || cls == Object.class) {
return;
}
if (addClassItself) {
if (result.contains(cls)) { // already added, no need to check supers
return;
}
result.add(cls);
}
for (Class intCls : cls.getInterfaces()) {
_addSuperTypes(intCls, endBefore, result, true);
}
_addSuperTypes(cls.getSuperclass(), endBefore, result, true);
}
}