| /* |
| * 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.carbondata.core.cache; |
| |
| import org.apache.carbondata.core.datastore.TableSegmentUniqueIdentifier; |
| import org.apache.carbondata.core.datastore.block.AbstractIndex; |
| |
| /** |
| * class which defines different cache types. cache type can be dictionary cache for |
| * forward (surrogate key to byte array mapping) and reverse (byte array to |
| * surrogate mapping) dictionary or a B-tree cache |
| */ |
| public class CacheType<K, V> { |
| |
| /** |
| * Executor BTree cache which maintains size of BTree metadata |
| */ |
| public static final CacheType<TableSegmentUniqueIdentifier, AbstractIndex> |
| DRIVER_BLOCKLET_INDEX = new CacheType("driver_blocklet_index"); |
| |
| /** |
| * cacheName which is unique name for a cache |
| */ |
| private String cacheName; |
| |
| /** |
| * @param cacheName |
| */ |
| public CacheType(String cacheName) { |
| this.cacheName = cacheName; |
| } |
| |
| /** |
| * @return cache unique name |
| */ |
| public String getCacheName() { |
| return cacheName; |
| } |
| } |