package org.jtheque.persistence.utils; /* * Copyright JTheque (Baptiste Wicht) * * 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. */ import org.jtheque.persistence.Entity; import org.jtheque.persistence.TemporaryContext; import org.jtheque.utils.annotations.GuardedInternally; import org.jtheque.utils.annotations.ThreadSafe; /** * Represents a persisted object of JTheque. * * @author Baptiste Wicht */ @ThreadSafe public abstract class AbstractEntity implements Entity { private volatile int id; @GuardedInternally private final TemporaryContext temporaryContext = new DefaultTemporaryContext(); @Override public TemporaryContext getTemporaryContext() { return temporaryContext; } @Override public final int getId() { return id; } @Override public final void setId(int id) { this.id = id; } @Override public final int compareTo(Entity object) { return getDisplayableText().compareTo(object.getDisplayableText()); } @Override public final boolean isSaved() { return id != 0; } @Override public void saveToMemento() { throw new UnsupportedOperationException(); } @Override public void restoreMemento() { throw new UnsupportedOperationException(); } @Override public abstract boolean equals(Object object); @Override public abstract int hashCode(); }