Example usage for org.apache.lucene.index IndexWriterConfig setReaderPooling

Introduction

In this page you can find the example usage for org.apache.lucene.index IndexWriterConfig setReaderPooling.

Prototype

public IndexWriterConfig setReaderPooling(boolean readerPooling) 

Source Link

Document

By default, IndexWriter does not pool the SegmentReaders it must open for deletions and merging, unless a near-real-time reader has been obtained by calling DirectoryReader#open(IndexWriter) .

Usage

From source file:cn.hbu.cs.esearch.index.DiskSearchIndex.java

License:Apache License

/**
 * Opens an index modifier.//www  .  j  av a2  s . com
 * @param analyzer Analyzer
 * @return IndexModifer instance
 */
@Override
public IndexWriter openIndexWriter(Analyzer analyzer, Similarity similarity) throws IOException {
    if (_indexWriter != null) {
        return _indexWriter;
    }

    Directory directory = _dirMgr.getDirectory(true);
    log.info("opening index writer at: " + _dirMgr.getPath());

    EsearchMergePolicy mergePolicy = new EsearchMergePolicy();
    mergePolicy.setMergePolicyParams(_mergePolicyParams);

    // hao: autocommit is set to false with this constructor
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, analyzer);
    config.setOpenMode(OpenMode.CREATE_OR_APPEND);
    _deletionPolicy = new ZoieIndexDeletionPolicy();
    config.setIndexDeletionPolicy(_deletionPolicy);
    config.setMergeScheduler(_mergeScheduler);
    config.setMergePolicy(mergePolicy);
    config.setReaderPooling(false);
    if (similarity != null) {
        config.setSimilarity(similarity);
    }
    config.setRAMBufferSizeMB(5);
    IndexWriter idxWriter = new IndexWriter(directory, config);

    // we need retrieve deletionPolicy from IndexWriter since deletionPolicy is deep cloned
    _deletionPolicy = (ZoieIndexDeletionPolicy) (idxWriter.getConfig().getIndexDeletionPolicy());
    _indexWriter = idxWriter;
    return idxWriter;
}

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From source file:cn.hbu.cs.esearch.index.RAMSearchIndex.java

License:Apache License

@Override
public IndexWriter openIndexWriter(Analyzer analyzer, Similarity similarity) throws IOException {

    if (_indexWriter != null) {
        return _indexWriter;
    }//from ww  w .ja  va 2  s  .co m

    EsearchMergePolicy mergePolicy = new EsearchMergePolicy();
    mergePolicy.setMergePolicyParams(_mergePolicyParams);
    mergePolicy.setUseCompoundFile(false);

    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, analyzer);
    config.setOpenMode(OpenMode.CREATE_OR_APPEND);
    config.setMergeScheduler(_mergeScheduler);
    config.setMergePolicy(mergePolicy);
    config.setReaderPooling(false);
    if (similarity != null) {
        config.setSimilarity(similarity);
    }
    config.setRAMBufferSizeMB(3);

    IndexWriter idxWriter = new IndexWriter(_directory, config);
    _indexWriter = idxWriter;
    return idxWriter;
}

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From source file:proj.zoie.impl.indexing.internal.DiskSearchIndex.java

License:Apache License

/**
 * Opens an index modifier./* ww  w.j  a va 2  s.  c o m*/
 * @param analyzer Analyzer
 * @return IndexModifer instance
 */
public IndexWriter openIndexWriter(Analyzer analyzer, Similarity similarity) throws IOException {
    if (_indexWriter != null)
        return _indexWriter;

    Directory directory = _dirMgr.getDirectory(true);

    log.info("opening index writer at: " + _dirMgr.getPath());

    ZoieMergePolicy mergePolicy = new ZoieMergePolicy();
    mergePolicy.setMergePolicyParams(_mergePolicyParams);

    // hao: autocommit is set to false with this constructor
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_34, analyzer);
    config.setOpenMode(OpenMode.CREATE_OR_APPEND);
    config.setIndexDeletionPolicy(_deletionPolicy);
    config.setMergeScheduler(_mergeScheduler);
    config.setMergePolicy(mergePolicy);
    config.setReaderPooling(false);
    if (similarity != null) {
        config.setSimilarity(similarity);
    }
    config.setRAMBufferSizeMB(5);
    IndexWriter idxWriter = new IndexWriter(directory, config);

    _indexWriter = idxWriter;
    return idxWriter;
}

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From source file:proj.zoie.impl.indexing.internal.RAMSearchIndex.java

License:Apache License

public IndexWriter openIndexWriter(Analyzer analyzer, Similarity similarity) throws IOException {
    if (_indexWriter != null)
        return _indexWriter;

    ZoieMergePolicy mergePolicy = new ZoieMergePolicy();
    mergePolicy.setMergePolicyParams(_mergePolicyParams);
    mergePolicy.setUseCompoundFile(false);

    IndexWriterConfig config = indexWriterConfigStorage.get();
    if (config == null) {
        config = new IndexWriterConfig(Version.LUCENE_34, analyzer);
        indexWriterConfigStorage.set(config);
    }/*  ww  w .j ava 2s  .  c o  m*/
    config.setOpenMode(OpenMode.CREATE_OR_APPEND);

    config.setMergeScheduler(_mergeScheduler);
    config.setMergePolicy(mergePolicy);

    config.setReaderPooling(false);
    if (similarity != null) {
        config.setSimilarity(similarity);
    }
    config.setRAMBufferSizeMB(3);

    IndexWriter idxWriter = new IndexWriter(_directory, config);
    _indexWriter = idxWriter;
    return idxWriter;
}

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