How to use

checkNull

method

in

org.azeckoski.reflectutils.ConstructorUtils

/**
 * @param type any class
 * @return true if this class is an array (e.g. int[].class, {@link Integer}[] )
 */
public static boolean isClassArray(Class<?> type) {
  checkNull(type);
  boolean array = false;
  if (type.isArray()) {
    array = true;
  }
  return array;
}

/**
 * @param type any class
 * @return true if this class is a list (e.g. {@link List}, {@link ArrayList})
 */
public static boolean isClassList(Class<?> type) {
  checkNull(type);
  boolean list = false;
  if (List.class.isAssignableFrom(type)) {
    list = true;
  }
  return list;
}

/**
 * @param type any class
 * @return true if this class is a map (e.g. {@link Map}, {@link HashMap})
 */
public static boolean isClassMap(Class<?> type) {
  checkNull(type);
  boolean collection = false;
  if (Map.class.isAssignableFrom(type)) {
    collection = true;
  }
  return collection;
}

/**
 * @param type any class
 * @return true if this class is a collection (e.g. {@link Collection}, {@link HashSet}, {@link Vector})
 */
public static boolean isClassCollection(Class<?> type) {
  checkNull(type);
  boolean collection = false;
  if (Collection.class.isAssignableFrom(type)) {
    collection = true;
  }
  return collection;
}

/**
 * @param type any class
 * @return true if this class is a primitive (e.g. int.class, boolean.class)
 */
public static boolean isClassPrimitive(Class<?> type) {
  checkNull(type);
  boolean primitive = false;
  if (type.isPrimitive()) {
    primitive = true;
  }
  return primitive;
}

/**
 * @param type any class
 * @return true if this class is a map (e.g. {@link Map}, {@link HashMap})
 */
public static boolean isClassMap(Class<?> type) {
  checkNull(type);
  boolean collection = false;
  if (Map.class.isAssignableFrom(type)) {
    collection = true;
  }
  return collection;
}

/**
 * @param type any class
 * @return true if this class is an array (e.g. int[].class, {@link Integer}[] )
 */
public static boolean isClassArray(Class<?> type) {
  checkNull(type);
  boolean array = false;
  if (type.isArray()) {
    array = true;
  }
  return array;
}

/**
 * @param type any class
 * @return true if this class is a primitive (e.g. int.class, boolean.class)
 */
public static boolean isClassPrimitive(Class<?> type) {
  checkNull(type);
  boolean primitive = false;
  if (type.isPrimitive()) {
    primitive = true;
  }
  return primitive;
}

/**
 * @param type any class
 * @return true if this class is a list (e.g. {@link List}, {@link ArrayList})
 */
public static boolean isClassList(Class<?> type) {
  checkNull(type);
  boolean list = false;
  if (List.class.isAssignableFrom(type)) {
    list = true;
  }
  return list;
}

/**
 * @param type any class
 * @return true if this class is a collection (e.g. {@link Collection}, {@link HashSet}, {@link Vector})
 */
public static boolean isClassCollection(Class<?> type) {
  checkNull(type);
  boolean collection = false;
  if (Collection.class.isAssignableFrom(type)) {
    collection = true;
  }
  return collection;
}

/**
 * @param type any class
 * @return true if this class is a primitive or other simple class (like String or immutable)
 */
public static boolean isClassSimple(Class<?> type) {
  checkNull(type);
  boolean simple = false;
  if ( isClassPrimitive(type) 
      || getImmutableTypes().contains(type)) {
    simple = true;
  }
  return simple;
}

/**
 * @param type any class
 * @return true if this class is a primitive or other simple class (like String or immutable)
 */
public static boolean isClassSimple(Class<?> type) {
  checkNull(type);
  boolean simple = false;
  if ( isClassPrimitive(type) 
      || getImmutableTypes().contains(type)) {
    simple = true;
  }
  return simple;
}

/**
 * @param type any class
 * @return true if this class is a bean of some kind (i.e. not primitive, immutable, or a holder like a map)
 */
public static boolean isClassBean(Class<?> type) {
  checkNull(type);
  boolean bean = true;
  if ( isClassSimple(type) || isClassObjectHolder(type) ) {
    bean = false;
  }
  return bean;
}

/**
 * @param type any class
 * @return true if this class is a bean of some kind (i.e. not primitive, immutable, or a holder like a map)
 */
public static boolean isClassBean(Class<?> type) {
  checkNull(type);
  boolean bean = true;
  if ( isClassSimple(type) || isClassObjectHolder(type) ) {
    bean = false;
  }
  return bean;
}

/**
 * @param type any class
 * @return true if this is a collection, map, or array, 
 * something that holds a bunch of objects (e.g. {@link Map}, {@link Set}, {@link List}, array)
 */
public static boolean isClassObjectHolder(Class<?> type) {
  checkNull(type);
  boolean holder = false;
  if ( isClassArray(type) || isClassCollection(type) || isClassMap(type) ) {
    holder = true;
  }
  return holder;
}

/**
 * @param type any class
 * @return true if this is a collection, map, or array, 
 * something that holds a bunch of objects (e.g. {@link Map}, {@link Set}, {@link List}, array)
 */
public static boolean isClassObjectHolder(Class<?> type) {
  checkNull(type);
  boolean holder = false;
  if ( isClassArray(type) || isClassCollection(type) || isClassMap(type) ) {
    holder = true;
  }
  return holder;
}