Examples of java.util.EnumSet

java.util.EnumSet
A specialized {@link Set} implementation for use with enum types. All ofthe elements in an enum set must come from a single enum type that is specified, explicitly or implicitly, when the set is created. Enum sets are represented internally as bit vectors. This representation is extremely compact and efficient. The space and time performance of this class should be good enough to allow its use as a high-quality, typesafe alternative to traditional int-based "bit flags." Even bulk operations (such as containsAll and retainAll) should run very quickly if their argument is also an enum set.
The iterator returned by the iterator method traverses the elements in their natural order (the order in which the enum constants are declared). The returned iterator is weakly consistent: it will never throw {@link ConcurrentModificationException}and it may or may not show the effects of any modifications to the set that occur while the iteration is in progress.
Null elements are not permitted. Attempts to insert a null element will throw {@link NullPointerException}. Attempts to test for the presence of a null element or to remove one will, however, function properly.
Like most collection implementations, EnumSet is not synchronized. If multiple threads access an enum set concurrently, and at least one of the threads modifies the set, it should be synchronized externally. This is typically accomplished by synchronizing on some object that naturally encapsulates the enum set. If no such object exists, the set should be "wrapped" using the {@link Collections#synchronizedSet}method. This is best done at creation time, to prevent accidental unsynchronized access:
```
 Set<MyEnum> s = Collections.synchronizedSet(EnumSet.noneOf(MyEnum.class)); 
```
Implementation note: All basic operations execute in constant time. They are likely (though not guaranteed) to be much faster than their {@link HashSet} counterparts. Even bulk operations execute inconstant time if their argument is also an enum set.
This class is a member of the Java Collections Framework. @author Josh Bloch @version 1.15, 07/10/06 @since 1.5 @see EnumMap @serial exclude


        rawCollection.add(EnumWithInnerClass.a);
        result = set.containsAll(rawCollection);
        assertFalse("Should return false", result); //$NON-NLS-1$


        EnumSet rawSet = EnumSet.noneOf(EnumFoo.class);
        result = set.containsAll(rawSet);
        assertTrue("Should contain empty set", result); //$NON-NLS-1$


        emptySet = EnumSet.noneOf(EmptyEnum.class);
        result = set.containsAll(emptySet);

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  static public class EnumSetSerializer extends Serializer<EnumSet> {
    public void write (Kryo kryo, Output output, EnumSet object) {
      Serializer serializer;
      if (object.isEmpty()) {
        EnumSet tmp = EnumSet.complementOf(object);
        if (tmp.isEmpty()) throw new KryoException("An EnumSet must have a defined Enum to be serialized.");
        serializer = kryo.writeClass(output, tmp.iterator().next().getClass()).getSerializer();
      } else {
        serializer = kryo.writeClass(output, object.iterator().next().getClass()).getSerializer();
      }
      output.writeInt(object.size(), true);
      for (Object element : object)

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        serializer.write(kryo, output, element);
    }


    public EnumSet read (Kryo kryo, Input input, Class<EnumSet> type) {
      Registration registration = kryo.readClass(input);
      EnumSet object = EnumSet.noneOf(registration.getType());
      Serializer serializer = registration.getSerializer();
      int length = input.readInt(true);
      for (int i = 0; i < length; i++)
        object.add(serializer.read(kryo, input, null));
      return object;
    }

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     */
    public EnumTypeConverter(DatabaseMapping mapping, Class enumClass, boolean useOrdinalValues) {
        super(mapping);
        m_enumClassName = enumClass.getName();
        m_enumClass = enumClass;
        EnumSet theEnums = EnumSet.allOf(enumClass);
        Iterator<Enum> i = theEnums.iterator();
        
        while (i.hasNext()) {
            Enum theEnum = i.next();
            
            if (useOrdinalValues) {

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     * List the names of the passed Enum as a comma separated String
     * @param clazz
     * @return
     */
    private String stringify(Class<? extends Enum> clazz) {
        EnumSet enumSet = EnumSet.allOf(clazz);
        StringBuilder b = new StringBuilder();
        Iterator iter = enumSet.iterator();
        while (iter.hasNext()) {
            Enum anEnum= (Enum) iter.next();
            b.append(anEnum.name());
            if (iter.hasNext()) {
                b.append(", ");

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    public boolean canConvert(Class type) {
        return EnumSet.class.isAssignableFrom(type);
    }


    public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
        EnumSet set = (EnumSet) source;
        Class enumTypeForSet = (Class) Fields.read(typeField, set);
        writer.addAttribute(mapper.aliasForAttribute("enum-type"), mapper.serializedClass(enumTypeForSet));
        writer.setValue(joinEnumValues(set));
    }

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        return result.toString();
    }


    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        Class enumTypeForSet = mapper.realClass(reader.getAttribute(mapper.aliasForAttribute("enum-type")));
        EnumSet set = EnumSet.noneOf(enumTypeForSet);
        String[] enumValues = reader.getValue().split(",");
        for (int i = 0; i < enumValues.length; i++) {
            String enumValue = enumValues[i];
            if(enumValue.length() > 0) {
                set.add(Enum.valueOf(enumTypeForSet, enumValue));
            }
        }
        return set;
    }

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      T result = (T) convertedItems;
      return result;
    }
    else if (erased.isAssignableFrom(EnumSet.class))
    {
      EnumSet enumSet = EnumSet.noneOf((Class<? extends Enum>) componentType);
      for (Object item : convertedItems)
      {
        Enum<?> e;
        if (item instanceof Enum<?> == false)
        {
          Enum<?> tmp = Enum.valueOf((Class<? extends Enum>) erased, (String) item);
          e = tmp;
        }
        else
        {
          e = (Enum<?>) item;
        }
        enumSet.add(e);
      }
      return (T) enumSet;
    }
    else if (erased.isArray())
    {

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        ListBoxItemBean itemAll = new ListBoxItemBean();
        itemAll.setName("ALL");
        itemAll.setValue("ALL");
        itemAll.setSelected("ALL".equals(statusType));
        statusTypeBean.addBean(itemAll);
        EnumSet allStatus = EnumSet.allOf(AccountRequest.Status.class);
        for (Iterator itr = allStatus.iterator(); itr.hasNext(); ) {
            AccountRequest.Status status = (AccountRequest.Status)itr.next();
            String name = status.toString();
            ListBoxItemBean item = new ListBoxItemBean();
            item.setName(name);
            item.setValue(name);

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            }
        };


        dbModel.addPropertyChangeListener(mfPcl);
        PersonalListCellRenderer cr = new PersonalListCellRenderer();
        EnumSet cards = Enums.getCards();
        for (Object card : cards) {
            mainCardsLstModel.addElement((Cards) card);
        }


        mainCardsLst.setModel(mainCardsLstModel);

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