com.hazelcast.map.impl.mapstore.writebehind.entry.DelayedEntries Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.map.impl.mapstore.writebehind.entry;
import java.util.UUID;
/**
* Mainly contains static factory methods to create various {@link DelayedEntry} instances.
*/
public final class DelayedEntries {
private static final DelayedEntry EMPTY_DELAYED_ENTRY = new EmptyDelayedEntry();
private DelayedEntries() {
}
public static DelayedEntry newAddedDelayedEntry(K key, V value,
long expirationTime,
long storeTime, int partitionId, UUID txnId) {
if (txnId != null) {
return new TxnAddedDelayedEntry<>(key, value, expirationTime, storeTime, partitionId, txnId);
}
return new AddedDelayedEntry<>(key, value, expirationTime, storeTime, partitionId);
}
public static DelayedEntry newAddedDelayedEntry(K key) {
return new AddedDelayedEntry<>(key, null, Long.MAX_VALUE, -1, -1);
}
public static DelayedEntry newNullEntry(K key) {
return new NullValueDelayedEntry<>(key);
}
public static DelayedEntry newDeletedEntry(K key,
long storeTime, int partitionId, UUID txnId) {
if (txnId != null) {
return new TxnDeletedDelayedEntry<>(key, storeTime, partitionId, txnId);
}
return new DeletedDelayedEntry<>(key, storeTime, partitionId);
}
public static DelayedEntry emptyDelayedEntry() {
return EMPTY_DELAYED_ENTRY;
}
private static class EmptyDelayedEntry implements DelayedEntry {
@Override
public Object getKey() {
return null;
}
@Override
public Object getValue() {
return null;
}
@Override
public long getExpirationTime() {
return Long.MAX_VALUE;
}
@Override
public long getStoreTime() {
return -1L;
}
@Override
public int getPartitionId() {
return -1;
}
@Override
public void setStoreTime(long storeTime) {
}
@Override
public void setSequence(long sequence) {
}
@Override
public long getSequence() {
return -1L;
}
@Override
public void setTxnId(UUID txnId) {
}
@Override
public UUID getTxnId() {
return null;
}
}
}