Package de.uplanet.lucy.server.dataobjects

Class NO_VALUE_HOLDER

java.lang.Object

de.uplanet.lucy.server.dataobjects.NO_VALUE_HOLDER

@ConstantClass
public final class NO_VALUE_HOLDER
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final IValueHolder<?>	INSTANCE	An instance of an immutable value holder.

Method Summary

Modifier and Type	Method	Description
static <T> IValueHolder<T>	instance()	Return INSTANCE with the correct generic type.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INSTANCE

public static final IValueHolder<?> INSTANCE

An instance of an immutable value holder.

All method calls on the IValueHolder interface of this instance will throw an java.lang.UnsupportedOperationException to enforce fail-fast programming style.

Method Details

instance

public static <T> IValueHolder<T> instance()

Return INSTANCE with the correct generic type.

Returns:

Always INSTANCE.