- #Apache lucene demo how to
- #Apache lucene demo software
- #Apache lucene demo code
- #Apache lucene demo license
On some platforms, the index path may be created in a different directory (such as the user's home directory). If IndexFiles is invoked with a relative path given in the -index command-line parameter, or if the -index command-line parameter is not given, causing the default relative index path " index" to be used, the index path will be created as a subdirectory of the current working directory (if it does not already exist). The value of the -index command-line parameter is the name of the filesystem directory where all index information should be stored. The main() method parses the command-line parameters, then in preparation for instantiating IndexWriter, opens a Directory, and instantiates StandardAnalyzer and IndexWriterConfig. IndexFilesĪs we discussed in the previous walk-through, the IndexFiles class creates a Lucene Index.
#Apache lucene demo code
* SearchFiles: code to search a Lucene index. The files discussed here are linked into this documentation directly: * IndexFiles: code to create a Lucene index.
#Apache lucene demo how to
This section is intended for Java developers wishing to understand how to use Lucene in their applications. In this section we walk through the sources behind the command-line Lucene demo: where to find them, their parts and their function. The results will page at every tenth result and ask you whether You'll see that there are no maching results in the lucene source code. Type in a gibberish or made up word (for example: To search the index type: java .SearchFiles Which will contain an index of all of the Lucene source code. This will produce a subdirectory called index Let's build an index! Assuming you've set your CLASSPATH correctly, just type: java .IndexFiles -docs /src Once you've gotten this far you're probably itching to go. The Lucene command-line demo code consists of an application that demonstrates various functionalities of Lucene and how you can add Lucene to your applications. It walks you through some basic installation and configuration. This document is intended as a "getting started" guide to using and running the Lucene demos. Apache Lucene - Building and Installing the Basic Demo * throughput, put multiple documents into your input file(s).The demo module offers simple example code to show the features of Lucene. * NOTE: This method indexes one document per input file. * recurses over files and directories found under the given directory. * Indexes the given file using the given writer, or if a directory is given, (end.getTime() - start.getTime() + " total milliseconds") worth it when your index is relatively static (ie a terribly costly operation, so generally it's only you can optionally call forceMerge here. NOTE: if you want to maximize search performance, IndexWriter writer = new IndexWriter(dir, iwc) size to the JVM (eg add -Xmx512m or -Xmx1g): But if you do this, increase the max heap are indexing many documents, increase the RAM Optional: for better indexing performance, if you Iwc.setOpenMode(OpenMode.CREATE_OR_APPEND) Add new documents to an existing index: Create a new index in the directory, removing any
IndexWriterConfig iwc = new IndexWriterConfig(analyzer) ("Indexing to directory '" + indexPath + "'.") ĭirectory dir = FSDirectory.open(Paths.get(indexPath)) Īnalyzer analyzer = new StandardAnalyzer() ("Document directory '" +docDir.toAbsolutePath()+ "' does not exist or is not readable, please check the path") + "in INDEX_PATH that can be searched with SearchFiles" + "This indexes the documents in DOCS_PATH, creating a Lucene index" ** Index all text files under a directory. * Run it with no command-line arguments for usage information. * This is a command-line application demonstrating simple Lucene indexing.
#Apache lucene demo license
* See the License for the specific language governing permissions and * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * distributed under the License is distributed on an "AS IS" BASIS,
#Apache lucene demo software
* Unless required by applicable law or agreed to in writing, software * (the "License") you may not use this file except in compliance with * The ASF licenses this file to You under the Apache License, Version 2.0 * this work for additional information regarding copyright ownership. * Licensed to the Apache Software Foundation (ASF) under one or more
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