Examples of org.springmodules.lucene.index.core.DefaultLuceneIndexTemplate

Package org.springmodules.lucene.index.core

Examples of org.springmodules.lucene.index.core.DefaultLuceneIndexTemplate

org.springmodules.lucene.index.core.DefaultLuceneIndexTemplate
This is the central class in the lucene indexing core package. It simplifies the use of lucene to index documents or datas using index reader and writer. It helps to avoid common errors and to manage these resource in a flexible manner. It executes core Lucene workflow, leaving application code to focus on the way to create Lucene documents and make some operations on the index.
This class is based on the IndexFactory abstraction which is a factory to create IndexReader and IndexWriter for the configured Directory. So the template doesn't need to always hold resources and this avoids some locking problems on the index. You can too apply different strategies for managing index resources.
Can be used within a service implementation via direct instantiation with a IndexFactory reference, or get prepared in an application context and given to services as bean reference. Note: The IndexFactory should always be configured as a bean in the application context, in the first case given to the service directly, in the second case to the prepared template.
You must be aware that the use of some methods (like undeleteDocuments, isDeleted, hasDeletions, flush) have sense only if you share the Lucene underlying resources across several template method calls. As a matter of fact, when IndexReader and IndexWriter are closed every changes deferred until the closing of these resources. Moreover some Lucene operations are incompatible if you share resources across several calls. @author Brian McCallister @author Thierry Templier @see DocumentCreator @see DocumentsCreator @see org.springmodules.lucene.index.factory


  public void testTemplateExecutionWithIndexReader() throws Exception {
    IndexFactory indexFactory = createIndexFactory();
    ResourceManager resourceManager = createResourceManager(indexFactory);
    
    DefaultLuceneIndexTemplate template = new DefaultLuceneIndexTemplate();
    template.setIndexFactory(indexFactory);
    template.setAnalyzer(new SimpleAnalyzer());
    template.afterPropertiesSet();


    DefaultResourceManagementDefinition definition = new DefaultResourceManagementDefinition();
    definition.setIndexReaderOpen(true);
    definition.setWriteOperationsForIndexReaderAuthorized(true);
    try {
      resourceManager.initializeResources(definition);
      
      template.deleteDocuments(new Term("id", "1"));
      template.hasDeletions();
      template.isDeleted(1);
      template.isDeleted(2);
      template.undeleteDocuments();
    } finally {
      resourceManager.releaseResources();
    }
  }

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  public void testTemplateExecutionWithIndexWriter() throws Exception {
    IndexFactory indexFactory = createIndexFactory();
    ResourceManager resourceManager = createResourceManager(indexFactory);
    
    DefaultLuceneIndexTemplate template = new DefaultLuceneIndexTemplate();
    template.setIndexFactory(indexFactory);
    template.setAnalyzer(new SimpleAnalyzer());
    template.afterPropertiesSet();


    DefaultResourceManagementDefinition definition = new DefaultResourceManagementDefinition();
    definition.setIndexWriterOpen(true);
    definition.setWriteOperationsForIndexWriterAuthorized(true);
    try {
      resourceManager.initializeResources(definition);
      
      Document document = new Document();
      document.add(new Field("id", "1", Field.Store.YES, Field.Index.UN_TOKENIZED));
      template.addDocument(document);
      template.addDocument(document);
      template.addDocument(document);
      template.optimize();
    } finally {
      resourceManager.releaseResources();
    }
  }

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  public void testTemplateExecutionWithIndexWriterReaderWithError() throws Exception {
    IndexFactory indexFactory = createIndexFactory();
    ResourceManager resourceManager = createResourceManager(indexFactory);
    
    DefaultLuceneIndexTemplate template = new DefaultLuceneIndexTemplate();
    template.setIndexFactory(indexFactory);
    template.setAnalyzer(new SimpleAnalyzer());
    template.afterPropertiesSet();


    DefaultResourceManagementDefinition definition = new DefaultResourceManagementDefinition();
    definition.setIndexWriterOpen(true);
    definition.setWriteOperationsForIndexWriterAuthorized(true);
    //definition.setIndexReaderOpen(true);
    definition.setWriteOperationsForIndexReaderAuthorized(false);
    try {
      resourceManager.initializeResources(definition);
      
      Document document = new Document();
      document.add(new Field("id", "3", Field.Store.YES, Field.Index.UN_TOKENIZED));
      template.addDocument(document);
      template.addDocument(document);
      template.addDocument(document);
      try {
        template.deleteDocuments(new Term("id", "1"));
        fail();
      } catch(LuceneIndexingException ex) {}
      template.optimize();
    } finally {
      resourceManager.releaseResources();
    }
  }

View Full Code Here


  public void testTemplateExecutionWithIndexWriterReader() throws Exception {
    IndexFactory indexFactory = createIndexFactory();
    ResourceManager resourceManager = createResourceManager(indexFactory);
    
    DefaultLuceneIndexTemplate template = new DefaultLuceneIndexTemplate();
    template.setIndexFactory(indexFactory);
    template.setAnalyzer(new SimpleAnalyzer());
    template.afterPropertiesSet();


    DefaultResourceManagementDefinition definition = new DefaultResourceManagementDefinition();
    definition.setIndexWriterOpen(true);
    definition.setWriteOperationsForIndexWriterAuthorized(true);
    definition.setIndexReaderOpen(true);
    definition.setWriteOperationsForIndexReaderAuthorized(false);
    try {
      resourceManager.initializeResources(definition);
      
      Document document = new Document();
      document.add(new Field("id", "3", Field.Store.YES, Field.Index.UN_TOKENIZED));
      template.addDocument(document);
      template.addDocument(document);
      template.addDocument(document);
      try {
        template.deleteDocuments(new Term("id", "1"));
      } catch(LuceneIndexingException ex) {}
      template.optimize();
    } finally {
      resourceManager.releaseResources();
    }
  }

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    if( this.template==null && this.indexFactory==null ) {
      throw new BeanInitializationException("indexFactory property required");
    }


    if( this.template==null ) {
      this.template=new DefaultLuceneIndexTemplate(indexFactory,analyzer);
    }
  }

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    if( this.template==null ) {
      if( this.indexFactory==null ) {
        throw new BeanInitializationException("indexFactory property required");
      }


      this.template = new DefaultLuceneIndexTemplate(indexFactory, analyzer);
    }
  }

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Related Classes of org.springmodules.lucene.index.core.DefaultLuceneIndexTemplate

org.apache.lucene.document.Document

org.apache.lucene.index.IndexReader

org.apache.lucene.index.IndexWriter

org.apache.lucene.index.Term

org.apache.lucene.search.Hits

org.apache.lucene.search.IndexSearcher

org.apache.lucene.search.TermQuery

org.springmodules.lucene.index.factory.LuceneIndexReader

org.springmodules.lucene.index.factory.LuceneIndexWriter

org.springmodules.lucene.index.resource.DefaultResourceManagerTests

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