| /* |
| * 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.internal.client; |
| |
| import java.util.Collection; |
| import java.util.EnumSet; |
| import java.util.Set; |
| |
| /** |
| * Cache projection flags that specify projection behaviour. |
| */ |
| public enum GridClientCacheFlag { |
| /** Skips store, i.e. no read-through and no write-through behavior. */ |
| SKIP_STORE, |
| |
| /** |
| * Disable deserialization of binary objects on get operations. |
| * If set and binary marshaller is used, {@link GridClientData#get(Object)} |
| * and {@link GridClientData#getAll(Collection)} methods will return |
| * instances of {@code BinaryObject} class instead of user objects. |
| * Use this flag if you don't have corresponding class on your client of |
| * if you want to get access to some individual fields, but do not want to |
| * fully deserialize the object. |
| */ |
| KEEP_BINARIES; |
| |
| /** */ |
| public static final int SKIP_STORE_MASK = 0b1; |
| |
| /** */ |
| public static final int KEEP_BINARIES_MASK = 0b10; |
| |
| /** */ |
| private static final GridClientCacheFlag[] VALS = values(); |
| |
| /** |
| * Efficiently gets enumerated value from its ordinal. |
| * |
| * @param ord Ordinal value. |
| * @return Enumerated value or {@code null} if ordinal out of range. |
| */ |
| public static GridClientCacheFlag fromOrdinal(int ord) { |
| return ord >= 0 && ord < VALS.length ? VALS[ord] : null; |
| } |
| |
| /** |
| * Encodes cache flags to bit map. |
| * |
| * @param flagSet Set of flags to be encoded. |
| * @return Bit map. |
| */ |
| public static int encodeCacheFlags(Collection<GridClientCacheFlag> flagSet) { |
| int bits = 0; |
| |
| if (flagSet.contains(SKIP_STORE)) |
| bits |= SKIP_STORE_MASK; |
| |
| if (flagSet.contains(KEEP_BINARIES)) |
| bits |= KEEP_BINARIES_MASK; |
| |
| return bits; |
| } |
| |
| /** |
| * Retrieves cache flags from corresponding bits. |
| * |
| * @param cacheFlagsBits Integer representation of cache flags bit set. |
| * @return Cache flags. |
| */ |
| public static Set<GridClientCacheFlag> parseCacheFlags(int cacheFlagsBits) { |
| boolean skipStore = (cacheFlagsBits & SKIP_STORE_MASK) != 0; |
| boolean keepBinaries = (cacheFlagsBits & KEEP_BINARIES_MASK) != 0; |
| |
| if (skipStore & keepBinaries) |
| return EnumSet.of(SKIP_STORE, KEEP_BINARIES); |
| |
| if (skipStore) |
| return EnumSet.of(SKIP_STORE); |
| |
| if (keepBinaries) |
| return EnumSet.of(KEEP_BINARIES); |
| |
| return EnumSet.noneOf(GridClientCacheFlag.class); |
| } |
| } |