Example usage for org.apache.lucene.index LeafReader getTermVectors

Introduction

In this page you can find the example usage for org.apache.lucene.index LeafReader getTermVectors.

Prototype

public abstract Fields getTermVectors(int docID) throws IOException;

Source Link

Document

Retrieve term vectors for this document, or null if term vectors were not indexed.

Usage

From source file:org.elasticsearch.xpack.core.security.authz.accesscontrol.FieldSubsetReaderTests.java

License:Open Source License

/**
 * test filtering an index with no fields
 *//*from  w  ww . j  av  a2s. c om*/
public void testEmpty() throws Exception {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = new IndexWriterConfig(null);
    IndexWriter iw = new IndexWriter(dir, iwc);
    iw.addDocument(new Document());

    // open reader
    DirectoryReader ir = FieldSubsetReader.wrap(DirectoryReader.open(iw),
            new CharacterRunAutomaton(Automata.makeString("fieldA")));

    // see no fields
    LeafReader segmentReader = ir.leaves().get(0).reader();
    Set<String> seenFields = new HashSet<>();
    for (FieldInfo info : segmentReader.getFieldInfos()) {
        seenFields.add(info.name);
    }
    assertEquals(0, seenFields.size());
    assertNull(segmentReader.terms("foo"));

    // see no vectors
    assertNull(segmentReader.getTermVectors(0));

    // see no stored fields
    Document document = segmentReader.document(0);
    assertEquals(0, document.getFields().size());

    TestUtil.checkReader(ir);
    IOUtils.close(ir, iw, dir);
}

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