lucene index "does not update

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lucene index documents

Documents with the Lucene index Next, I will step by step to demonstrate how to use Lucene to index your document creation. As long as you can convert the files to be indexed text, Lucene can index documents for you. For example, if you want an HTML docum

Lucene index for the database

Lucene index for the database

[Lucene3.0 Quest] Lucene index creation (1): IndexWriter Indexer

"Lucene index to create" a series of articles starting from the source code, revealing in detail the two major functions of the Lucene index creation process. And to elaborate the use of information retrieval related technologies. Since Luc ...

Maven repository for your set Lucene index

from: http://www.intellij.org.cn/portal/index.php?option=com_content&task=view&id=287 Nexus indexer is to set up your local Maven repository Lucene index. Of course, you may ask what index? The reason is simple, is to maven's library of inform

How to improve and optimize the speed of a Lucene index

This article introduces how to improve Lucene's indexing speed. Describes most of the ideas are very easy to try, of course, another part may increase the complexity of your application. So make sure that the index rate is indeed very slow and very sl

Traversal using Lucene's API Lucene index

(Reprinted) Traversal using Lucene's API to use Lucene Lucene index generally people who have little need to traverse the index operation like, for use Lucene index files are not normally produce much of its interest in focusing only on the Lucen

Lucene index on the combined solution

import java.io.File; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.store.FSDirectory; public class AdvancedTextFileIndexer ( / ** * @ Author Shane Zhao about merge In

Records - notes-java-lucene index. Search

(1) index (Tindex.java) package aJavaTest.lucene; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.lucene.analysis.Analyzer; import org.apache.lucene.anal

Lucene index build time

Lucene can incrementally add a paragraph, we know there is a certain inverted index format, and this format is very difficult to change once written, then how can the incremental construction of the index it? Lucene uses the concept of paragraph solv

Lucene index increment duplication of search results

Lucene index increments of less intelligence, although according to the document said, the following is the third increment of the index parameter to false (true to create the index or overwrite the existing one; false to append to the existing index

Detailed Lucene index file format

1. Index SEGMENT SEGMENT LUCENE a representative of each completed section of the index, usually in an index will contain multiple SEGMENT, SEGMENT has a uniform for each prefix, the prefix is DOCUMENT based on the current index number of the establi

Maven repository set up for your Lucene index

from: http://www.intellij.org.cn/portal/index.php?option=com_content&task=view&id=287 Nexus indexer is to your local Maven repository set up a Lucene index. Of course, you may ask what index? The reason is very simple, is to the maven reposit

java.lang.NoClassDefFoundError: org / apache / lucene / index / memory / MemoryIndex

Lucence3.0 search framework exception: root cause: java.lang.NoClassDefFoundError: org / apache / lucene / index / memory / MemoryIndex Solution: Import the Web project under lucene-memory-3.0.1.jar package, the package lucene-3.0.1 \ contrib \ memor

Reptile visit to the priority level and index logic (reptiles update frequency)

As we all know, the search engine crawler to the page on the update frequency of the main link to the extensive degree (popularity) to determine, that is outside the chain and those who have more pages within the chain will have a higher update frequ ...

lucene index method in the incremental

lucene in indexing can not always delete the original and then rebuild the index. In the construction of the index IndexWriter the last parameter is of type boolean, used to determine the reconstruction index (true) or incremental index. IndexWriter write

The corn used in the linux way Lucene index

usefulness of cron I do not say, and recently, doing such a thing, the index in an interval of 20 minutes will be updated to the index, that is, the index process will sleep 20 minutes, but to know the IndexReader to lucene the index of the hard disk

Lucene index reading tool (IndexReader)

Lucene has a very important tool IndexReader reading the index and is responsible for maintenance work. public static void main (String [] args) { try { IndexReader reader = IndexReader.open ("d: / / demo"); for (int i = 0; i <reader.num

Lucene index file structure analysis

lucence index structure is an inverted index structure, what is the inverted index structure (inverted index) does the reverse index is an index entry for the center, each index point to a document sequence that contains all the documents The index e

lucene index of small-sample

//--------------------------- Create index public class IndexWrite { private IndexWrite() {} public static String index () throws IOException { // To create an index directory :F:/search/index_create File indexDirectory = new File (Common.INDEX_PATH + Com

Lucene ----- Index directory, index sorting, highlighting device, index, query,

1. Index directory extract the program: Here you can either use each individual can also be nested 2. Highlighting the use of devices: 1. Definition highlighted device 2. the use of highlighting device: / / Here the use of bright 3. Sort the query us ...

Multi-Lucene Index Catalog Search

We can use MultiReader or MultiSearcher Search multiple indexes library . MultiReader reader=newMultiReader(newIndexReader[]{IndexReader.Open(@"c:\index"),IndexReader.Open(@"\\server\index")}); IndexSearcher searcher=newIndexSearcher(reader); Hits hi

lucene index of non-txt document (pdf word rtf html xml)

Search should be the first to the index, then the simplest way is to index txt files, as already described. Here are what some of the index documents in other formats, such as ms word, pdf, rtf and so on. Indexing methods: the first is to first convert al

Lucene index to search from more than one

In fact, in some commercial systems, the index is not only stored in a directory, so we request that the index number of the directory with the query. Code: public static void main (String [] args) { try { / * File file1 = new File ("d: / / test1

lucene index structure

http://blog.csdn.net/fox009/archive/2010/05/01/5549148.aspx

Lucene a simple full-text index creation and additional process

Lucene is a full-text search and search for open source library from the Apache Software Foundation to support and provide. Lucene provides a simple yet powerful application program interfaces, can do full text indexing and search, in the Java development

Issues related to Lucene (7): Construction of real-time index with Lucene

As the previous chapter, the matters described in Lucene, Lucene can make incremental addition of a paragraph, we know that there is a certain inverted index format, and this format is very difficult to change once written, then how can we increase capaci

lucene Summary Introduction II - Index of the establishment of (1)

1 lucene's document, is a logical file, lucene own special reasons can not index files, only to recognize and deal with document types of files. document is only responsible for collecting the data source. 2 document can increase the variety of field,

lucene 3.0 Learning Notes (1) - index

Are learning lucene, download the new version is 3.0, where in order to learn the notes on the blog, as a backup. Use lucene as a search engine, the main thing to do 2: 1, indexing; 2, use the index query. Lucene first to search for that content into

create index and search lucene

1.lucene create the index and search, mainly used to a few classes, IndexWriter, Document, Analyzer; IndexSearcher, QueryParser, Query, TopDocs, 2. FSDirectory and RAMDirectory by the and used, can improve the speed. First index file on the disk into memo

lucene 3.0 Study Notes (1) - index (rpm)

Are learning lucene, download the new version is 3.0, where the study notes in order, on the blog, as a backup. Use lucene as a search engine, the main thing to do 2: 1, indexing; 2, the use of references. Lucene first to search for that content into

Lucene 3 Detailed indexing and query the index

public void index () throws CorruptIndexException, LockObtainFailedException, IOException { / / Index directory File indexDir = new File ("D: / workspace/code/java/TestLucene3/index/txt/test /"); / / Note: This index segmentation method use

lucene 3.0 Study Notes (1) - index (r)

Are learning lucene, download the new version is 3.0, where in order to learn the notes on the blog as a backup. Use lucene as a search engine, the main thing to do 2: 1, indexing; 2, use the index query. Lucene first to search for that content into

Hibernate Search, Lucene

First of all, we need to be added to the configuration in the persistence.xml as follows: <! - Use a file system based index -> <property name="hibernate.search.default.directory_provider" value="org.hibernate.search.store.FSDirect

Lucene in Action (Simplified Chinese)

A total of 10 part of the first part of the Lucene core 1. Contact Lucene 2. Index 3. To add a search procedure 4. Analysis of 5. High-pole search technology 6. Extended Search application of the second part of the Lucene 7. Analysis of commonly used docu

Hibernate Search, Lucene and JBoss Seam

First, we need to add the relevant configuration in persistence.xml as follows: <!-- use a file system based index --> <property name="hibernate.search.default.directory_provider" value="org.hibernate.search.store.FSDirectoryProvider" /> <!

Lucene study conclude by 4: Lucene indexing process analysis (2)

3, the document by adding IndexWriter Code: writer.addDocument (doc); -> IndexWriter.addDocument (Document doc, Analyzer analyzer) -> doFlush = docWriter.addDocument (doc, analyzer); -> DocumentsWriter.updateDocument (Document, Analyzer, Term) No

Lucene: full-text search engine based on Java Introduction

Author: Che Dong Published on :2002-08-06 18:08 Last updated :2009-03-20 23:03 Copyright : You can willfully, reproduced hyperlink when you make sure to indicate the form of the article Original Source And author information and This statement . http://ww

To be a SQL query engine Lucene

Has recently learned about Lucene, and found it quite flexible and easy to use, in addition to concurrency control have to do some work themselves. However, the readability of Lucene's index data badly, unlike the database, easily find the client ...

Using the Apache Lucene text search

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. Lucene powerful API focuses on text indexing and search. It can

Lucene 2.0.0 download and install and test

Download link: http://apache.mirror.phpchina.com/lucene/java/archive/ To select the lucene-2.0.0.zip download an example. 【Installation】 1, the local disk decompression lucene-2.0.0.zip file; 2, lucene-demos-2.0.0.jar lucene-core-2.0.0.jar and copied to t

Lucene: Java-based full-text search engine Introduction

Lucene is a Java-based full-text indexing tool kit. Based on Java full-text indexing engine, Lucene Description: About the Author and Lucene history of full-text search of realization: Luene full-text index and database index of more Chinese segmentation

How to improve and optimize the Lucene search speed (rpm)

Original Address Make sure you use the latest version of Lucene To make use of the local file system Remote file system in general will slow down your search. If the index must be located in a remote server, you can try to set the remote file system

The principle of multi-thread access Lucene and synchronization, locking mechanism

This article describes the lucene use of multi-threaded environment to achieve the principles and commit.lock and write.lock lock mechanism. Beginning of the design is to serve multi-threaded environment, in most cases is not indexed to a thread acce

Using the Apache Lucene search text (to)

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. API focuses on the powerful Lucene text indexing and search. It

Lucene 3.0.2 Code Analysis

Continuously updated Document and Field IndexWriter IndexReader Lucenen achieved in the inverted IndexSearcher Analyzer Sort Filter Lucene's Ranking algorithm and improved 1. Document and Field Document and Field in the index creation process is

Lucene accelerated the search speed ImproveSearchingSpeed (b)

This is a simple translation, original in: http://wiki.apache.org/lucene-java/ImproveSearchingSpeed Transfer from: http://blog.fulin.org/2009/06/improvesearchingspeed.html * Be sure you really need to speed things up. Many of the ideas here are simpl

Lucene 3.0 and change the simple analytical

I. Overview Lucene3.0 (hereinafter referred to as 3.0) was released 2009-11-25, version 3.0 is a major, significant change. In the API to do a lot of adjustments, have been removed prior to waste a lot of methods and classes, and supports a lot of Ja

Discussion on the Lucene

Classified as [lucene] article Lucene how paging, how to display from 1 to 10, or from 11 to 20 results? How to write a Lucene analyzer? How to update a Lucene or group of documents have been indexed? Under the optimized Lucene index if you do not delete

Introduction and how to use Lucene?

Lucene is a Java-based toolkit full-text index. The full text index engine based on Lucene Java Introduction: On the history of the author and Lucene Full text search implementation: Luene full-text index and database comparison of the index Chinese word

Using the Apache Lucene search text (turn)

Introduction Lucene is an open source, highly scalable search engine library, you can get from the Apache Software Foundation. You can use Lucene for commercial and open source applications. Lucene's API is a powerful text indexing and searching atten
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