Java tutorial
/* * Copyright 2008 University Corporation for Advanced Internet Development, Inc. * * 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 org.opensaml.util.storage; import java.io.Serializable; import org.joda.time.DateTime; import org.joda.time.chrono.ISOChronology; /** Base implementation for {@link ExpiringObject}. */ public abstract class AbstractExpiringObject implements ExpiringObject, Serializable { /** Moment of expiration in UTC. */ private long expiration; /** * Constructor. * * @param expirationTime time this object should expire */ public AbstractExpiringObject(DateTime expirationTime) { expiration = expirationTime.toDateTime(ISOChronology.getInstanceUTC()).getMillis(); } /** {@inheritDoc} */ public DateTime getExpirationTime() { return new DateTime(expiration, ISOChronology.getInstanceUTC()); } /** {@inheritDoc} */ public boolean isExpired() { return getExpirationTime().isBeforeNow(); } /** {@inheritDoc} */ public void onExpire() { // no-op, implementations should override if they need to do something } }