Example usage for org.apache.lucene.document DocumentStoredFieldVisitor DocumentStoredFieldVisitor

Introduction

In this page you can find the example usage for org.apache.lucene.document DocumentStoredFieldVisitor DocumentStoredFieldVisitor.

Prototype

public DocumentStoredFieldVisitor() 

Source Link

Document

Load all stored fields.

Usage

From source file:com.core.nlp.index.IndexReader.java

License:Apache License

/**
 * Returns the stored fields of the <code>n</code><sup>th</sup>
 * <code>Document</code> in this index.  This is just
 * sugar for using {@link DocumentStoredFieldVisitor}.
 * <p>// ww w . ja  v a  2 s . com
 * <b>NOTE:</b> for performance reasons, this method does not check if the
 * requested document is deleted, and therefore asking for a deleted document
 * may yield unspecified results. Usually this is not required, however you
 * can test if the doc is deleted by checking the {@link
 * Bits} returned from {@link MultiFields#getLiveDocs}.
 *
 * <b>NOTE:</b> only the content of a field is returned,
 * if that field was stored during indexing.  Metadata
 * like boost, omitNorm, IndexOptions, tokenized, etc.,
 * are not preserved.
 * 
 * @throws CorruptIndexException if the index is corrupt
 * @throws IOException if there is a low-level IO error
 */
// TODO: we need a separate StoredField, so that the
// Document returned here contains that class not
// IndexableField
public final Document document(int docID) throws IOException {
    final DocumentStoredFieldVisitor visitor = new DocumentStoredFieldVisitor();
    document(docID, visitor);
    return visitor.getDocument();
}

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From source file:fi.semantum.strategia.Lucene.java

License:Open Source License

public static synchronized List<String> search(String databaseId, String search) throws IOException {

    ArrayList<String> result = new ArrayList<String>();

    IndexReader reader = null;// w w w.  ja va 2 s .  co m

    try {

        reader = DirectoryReader.open(getDirectory(databaseId));
        IndexSearcher searcher = new IndexSearcher(reader);

        QueryParser parser = new QueryParser(Version.LUCENE_4_9, "text", getAnalyzer());
        parser.setAllowLeadingWildcard(true);
        Query query = parser.parse(search);

        TopDocs docs = searcher.search(query, Integer.MAX_VALUE);

        for (ScoreDoc scoreDoc : docs.scoreDocs) {

            try {

                DocumentStoredFieldVisitor visitor = new DocumentStoredFieldVisitor();

                reader.document(scoreDoc.doc, visitor);

                Document doc = visitor.getDocument();

                result.add(doc.get("uuid"));

            } catch (CorruptIndexException e) {
                throw new IOException(e);
            }

        }

    } catch (ParseException e) {

        throw new IOException(e);

    } finally {

        if (reader != null)
            reader.close();

    }

    return result;

}

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From source file:lux.CachingDocReader.java

License:Mozilla Public License

private XdmNode get(int docID, int luceneDocID, IndexReader reader) throws IOException {
    XdmNode node = cache.get(docID);// ww w .  j  a v  a  2 s .c  om
    if (node != null) {
        ++cacheHits;
        return node;
    }
    DocumentStoredFieldVisitor fieldSelector = new DocumentStoredFieldVisitor();
    reader.document(luceneDocID, fieldSelector);
    Document document = fieldSelector.getDocument();
    return getXdmNode(docID, document);
}

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From source file:org.apache.blur.mapreduce.lib.GenericRecordReader.java

License:Apache License

private void fetchBlurRecord() throws IOException {
    DocumentStoredFieldVisitor visitor = new DocumentStoredFieldVisitor();
    _fieldsReader.visitDocument(_docId, visitor);
    BlurRecord blurRecord = new BlurRecord();
    String rowId = RowDocumentUtil.readRecord(visitor.getDocument(), blurRecord);
    blurRecord.setRowId(rowId);//from  w w w  .j  a v  a2s  .  c  o m
    _rowId = new Text(rowId);
    _tableBlurRecord = new TableBlurRecord(_table, blurRecord);
}

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