/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.container.entries;
import org.infinispan.container.versioning.EntryVersion;
import org.infinispan.marshall.AbstractExternalizer;
import org.infinispan.marshall.Ids;
import org.infinispan.util.Util;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Set;
/**
* An immortal cache value, to correspond with {@link org.infinispan.container.entries.ImmortalCacheEntry}
*
* @author Manik Surtani
* @since 4.0
*/
public class ImmortalCacheValue implements InternalCacheValue, Cloneable {
Object value;
volatile EntryVersion version;
ImmortalCacheValue(Object value, EntryVersion version) {
this.value = value;
this.version = version;
}
public InternalCacheEntry toInternalCacheEntry(Object key) {
return new ImmortalCacheEntry(key, value, version);
}
public final Object setValue(Object value) {
Object old = this.value;
this.value = value;
return old;
}
public Object getValue() {
return value;
}
public boolean isExpired(long now) {
return false;
}
public boolean isExpired() {
return false;
}
public boolean canExpire() {
return false;
}
public long getCreated() {
return -1;
}
public long getLastUsed() {
return -1;
}
public long getLifespan() {
return -1;
}
public long getMaxIdle() {
return -1;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof ImmortalCacheValue)) return false;
ImmortalCacheValue that = (ImmortalCacheValue) o;
if (value != null ? !value.equals(that.value) : that.value != null) return false;
return true;
}
@Override
public int hashCode() {
return value != null ? value.hashCode() : 0;
}
@Override
public String toString() {
return "ImmortalCacheValue{" +
"value=" + value +
"version=" + version +
'}';
}
@Override
public ImmortalCacheValue clone() {
try {
return (ImmortalCacheValue) super.clone();
} catch (CloneNotSupportedException e) {
throw new RuntimeException("Should never happen", e);
}
}
public static class Externalizer extends AbstractExternalizer<ImmortalCacheValue> {
@Override
public void writeObject(ObjectOutput output, ImmortalCacheValue icv) throws IOException {
output.writeObject(icv.value);
output.writeObject(icv.version);
}
@Override
public ImmortalCacheValue readObject(ObjectInput input) throws IOException, ClassNotFoundException {
Object v = input.readObject();
EntryVersion ver = (EntryVersion) input.readObject();
return new ImmortalCacheValue(v, ver);
}
@Override
public Integer getId() {
return Ids.IMMORTAL_VALUE;
}
@Override
public Set<Class<? extends ImmortalCacheValue>> getTypeClasses() {
return Util.<Class<? extends ImmortalCacheValue>>asSet(ImmortalCacheValue.class);
}
}
}