ScoreDoc hits = collector.topDocs().scoreDocs TopScoreDocCollector collector = TopScoreDocCollector.create(hitsPerPage, true) IndexSearcher searcher = new IndexSearcher(reader) IndexReader reader = DirectoryReader.open(index) Query q = new QueryParser(Version.LUCENE_44, \"title \", analyzer).parse(querystr) The \"title \" arg specifies the default field to use when no field is explicitly specified in the query String querystr = args.length > 0 ? args : \"teja \" IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_44, analyzer) StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_44) The same analyzer should be used for indexing and searching Specify the analyzer for tokenizing text.
#Build apache lucene eclipse code
The code is commented at appropriate places so that you can understand what is going on in the code. You should have prior knowledge of core java to understand the code. Refer the below picture to know where to write the class name. We will write our java code in this file and run it. Step 7: Again right click on the project and select “New” and select “Class” as shown below: This path might vary on your systems.Īfter selecting and adding the 4 JAR files, the eclipse “Java Build Path” dialog box will look as shown below:Īfter adding the JAR files, click on the “OK” button as shown in the above figure. My lucene folder (lucene-4.4.0) is stored at location C:\Users\User\Desktop. Below I will be listing the paths to 4 JAR files that we will be adding to our project:Ĭ:\Users\User\Desktop\lucene-4.4.0\queryparser\lucene-queryparser-4.4.0.jarĬ:\Users\User\Desktop\lucene-4.4.0\analysis\common\lucene-analyzers-common-4.4.0.jarĬ:\Users\User\Desktop\lucene-4.4.0\core\lucene-core-4.4.0.jarĬ:\Users\User\Desktop\lucene-4.4.0\demo\lucene-demo-4.4.0.jar Previously you have extracted lucene on to your desktop. In this step, we will be adding 4 JAR files to our project (LuceneDemo).
Step 5: Click on “Java Build Path” on the left side and select “Add External JARs…” button on the right as shown below:
Step 4: Right click on the project (LuceneDemo) and select “Properties” as shown below: Now your eclipse IDE would look something like shown below: I have given “LuceneDemo” as the project name. Step 2: Create a Java project (File -> New -> java Project) Procedure: So, what are we waiting for? Let’s start to use lucene with eclipse… You can get an idea of the basic concepts in lucene by visiting this website. Read more about lucene at their official website. Lucene allows users to embed search functionality into any application.
#Build apache lucene eclipse full
Apache lucene – Download Here (After downloading extract the files to the desktop)Īpache Lucene: Lucene is a full text search library written in Java.
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