/* * Copyright 2008-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.nominanuda.zen.obj; import javax.annotation.Nullable; import javax.annotation.concurrent.Immutable; import com.nominanuda.zen.stereotype.Decorator; @Immutable interface Val extends JixEvent, Any, Decorator<Object> { public static final Val NULL = new ValImpl(null); static Val of(@Nullable Object v) { return new ValImpl(v); } @Override default boolean isVal() { return true; } @Override default Val copy() { return this;/*since @Immutable*/ } @Override default JixEventType eventType() { return JixEventType.val; } @Override default void sendTo(JixHandler sink) { sink.val(this); } default boolean isNull() { return NULL == this; } }