/*
* 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.jena.tdb.sys;
/** Names of things in TDB */
public class Names
{
public static final String primaryIndexTriples = "SPO" ;
public static final String[] tripleIndexes = { primaryIndexTriples, "POS", "OSP" } ;
public static final String primaryIndexQuads = "GSPO" ;
public static final String[] quadIndexes = { primaryIndexQuads, "GPOS", "GOSP", "POSG", "OSPG", "SPOG"} ;
public static final String primaryIndexPrefix = "GPU" ;
public static final String[] prefixIndexes = { primaryIndexPrefix } ;
/** B+Trees - nodes file and records file */
public static final String bptExtTree = "idn" ;
public static final String bptExtRecords = "dat" ;
/** BTrees - single file per tree */
public static final String btExt = "idx" ;
/** ExtHash - dictionary file*/
public static final String extHashExt = "exh" ;
public static final String extHashBucketExt = "dat" ;
public static final String datasetConfig = "config-tdb" ; // name of the TDB configuration file.
/** Node file */
public static final String extNodeData = "dat" ; // Extension of node files
public static final String extJournal = "jrnl" ; // Extension of node files.
public static final String journalFileBase = "journal" ;
public static final String journalFile = journalFileBase+"."+extJournal ;
public static final String indexId2Node = "nodes" ; // Node table
public static final String indexNode2Id = "node2id"; // Node hash to id table
//public static final String indexId2Node = "id2node"; // Would be the Index for node(hash) to id
/** Prefixes file */
public static final String prefixId2Node = "prefixes" ; // Prefix node table
public static final String prefixNode2Id = "prefix2id"; // Prefix node table for index Node/hash->id
public static final String indexPrefix = "prefixIdx"; // Prefix index name
/** Optimizer / stats */
public static final String optStats = "stats.opt" ;
public static final String optFixed = "fixed.opt" ;
public static final String optNone = "none.opt" ;
public static final String optDefault = optFixed ;
public static final String extMeta = "info" ;
public static final String directoryMetafile = "this" ; // Root name of the directory for a metafile.
/** Name to indicate in-memory */
public static final String memName = "--mem--" ;
public static boolean isMem(String name) { return memName.equals(name) ; }
// ---- Names for Java properties in metadata files
public static String makeKey(String root, String...elements)
{ return makeName(root, elements) ; }
public static String makeName(String root, String...elements)
{
StringBuilder sb = new StringBuilder() ;
sb.append(root) ;
for ( String s : elements )
{
if ( ! s.startsWith(".") )
sb.append(".") ;
sb.append(s) ;
}
return sb.toString() ;
}
// Component elements.
public static final String elNode = "node" ;
public static final String elBPlusTree = "bptree" ;
public static final String elIndex = "index" ;
public static final String elObject = "object" ;
public static final String elType = "type" ;
public static final String elLayout = "layout" ;
public static final String elVersion = "version" ;
public static final String elTimestamp = "timestamp" ;
public static final String elCreated = "created" ;
// Root names.
public static final String keyNS = "tdb" ;
public static final String keyNSNode = makeName(keyNS, elNode) ;
public static final String keyNSBPlusTree = makeName(keyNS, elBPlusTree) ;
// Location metadata - in the directory wide metadata file.
public static final String kVersion = makeName(keyNS, elVersion) ;
public static final String kCreatedDate = makeName(keyNS, elTimestamp) ;
// Node table metadata
public static final String kNodeTableType = makeName(keyNS, elNode, elType) ;
public static final String kNodeTableLayout = makeName(keyNS, elNode, elLayout) ;
// // Object file
// public static final String kObjectTableType = makeName(keyNS, elObject, elType) ;
//
// // Default index metadata - in the index metadata file.
//
// public static final String kIndexType = makeName(keyNS, elIndex, elType) ;
// public static final String kIndexFileLayout = makeName(keyNS, elIndex, elLayout) ;
// See also BPlusTreeParams for keyNSBPlusTree derived names.
// // Current values
// public static final String currentIndexType = IndexType.BPlusTree.getName() ;
// public static final String currentIndexFileVersion = "v1" ;
// Property strings - Setup
public static final String pNode2NodeIdCacheSize = "tdb.cache.node2nodeid.size" ;
public static final String pNodeId2NodeCacheSize = "tdb.cache.nodeid2node.size" ;
public static final String pNodeMissesCacheSize = "tdb.cache.nodeMiss.size" ;
public static final String pBlockWriteCacheSize = "tdb.cache.blockwrite.size" ;
public static final String pBlockReadCacheSize = "tdb.cache.blockread.size" ;
public static final String pSyncTick = "tdb.synctick" ;
}