| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.ignite.cache; |
| |
| import org.apache.ignite.transactions.Transaction; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Mode indicating how Ignite should wait for write replies from other nodes. Default |
| * value is {@link #PRIMARY_SYNC}}, which means that Ignite will wait for write or commit to complete on |
| * {@code primary} node, but will not wait for backups to be updated. |
| * <p> |
| * Note that regardless of write synchronization mode, cache data will always remain fully |
| * consistent across all participating nodes. |
| * <p> |
| * Write synchronization mode may be configured via {@link org.apache.ignite.configuration.CacheConfiguration#getWriteSynchronizationMode()} |
| * configuration property. |
| */ |
| public enum CacheWriteSynchronizationMode { |
| /** |
| * Flag indicating that Ignite should wait for write or commit replies from all nodes. |
| * This behavior guarantees that whenever any of the atomic or transactional writes |
| * complete, all other participating nodes which cache the written data have been updated. |
| */ |
| FULL_SYNC, |
| |
| /** |
| * Flag indicating that Ignite will not wait for write or commit responses from participating nodes, |
| * which means that remote nodes may get their state updated a bit after any of the cache write methods |
| * complete, or after {@link Transaction#commit()} method completes. |
| */ |
| FULL_ASYNC, |
| |
| /** |
| * This flag only makes sense for {@link CacheMode#PARTITIONED} and {@link CacheMode#REPLICATED} modes. |
| * When enabled, Ignite will wait for write or commit to complete on {@code primary} node, but will not wait for |
| * backups to be updated. |
| */ |
| PRIMARY_SYNC; |
| |
| /** Enumerated values. */ |
| private static final CacheWriteSynchronizationMode[] VALS = values(); |
| |
| /** |
| * Efficiently gets enumerated value from its ordinal. |
| * |
| * @param ord Ordinal value. |
| * @return Enumerated value or {@code null} if ordinal out of range. |
| */ |
| @Nullable public static CacheWriteSynchronizationMode fromOrdinal(int ord) { |
| return ord >= 0 && ord < VALS.length ? VALS[ord] : null; |
| } |
| } |