/* * Copyright (C) 2012, 2016 higherfrequencytrading.com * Copyright (C) 2016 Roman Leventov * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package net.openhft.chronicle.map.impl.stage.data.instance; import net.openhft.chronicle.hash.Data; import net.openhft.chronicle.hash.serialization.DataAccess; import net.openhft.chronicle.map.impl.VanillaChronicleMapHolder; import net.openhft.sg.Stage; import net.openhft.sg.StageRef; import net.openhft.sg.Staged; @Staged public class WrappedValueInstanceDataHolder<V> { @StageRef VanillaChronicleMapHolder<?, V, ?> mh; private final DataAccess<V> wrappedValueDataAccess = mh.m().valueDataAccess.copy(); private WrappedValueInstanceDataHolder<V> next; boolean nextInit() { return true; } void closeNext() { // do nothing } @Stage("Next") public WrappedValueInstanceDataHolder<V> getUnusedWrappedValueHolder() { if (!valueInit()) return this; if (next == null) next = new WrappedValueInstanceDataHolder<>(); return next.getUnusedWrappedValueHolder(); } private V value; public boolean valueInit() { return value != null; } public void initValue(V value) { mh.m().checkValue(value); this.value = value; } public void closeValue() { value = null; if (next != null) next.closeValue(); } public Data<V> wrappedData = null; private void initWrappedData() { wrappedData = wrappedValueDataAccess.getData(value); } private void closeWrappedData() { wrappedData = null; wrappedValueDataAccess.uninit(); } }