Examples of it.unimi.dsi.mg4j.index.Index.documents()

it.unimi.dsi.mg4j.index.Index.documents()
Creates a new {@link IndexReader} for this index and uses it to return an index iterator over the documents containing a term.
Since the reader is created from scratch, it is essential to {@linkplain it.unimi.dsi.mg4j.search.DocumentIterator#dispose() dispose} thereturned iterator after usage. See {@link IndexReader#documents(int)}for a method with the same semantics, but making reader reuse possible. @param term a term. @throws IOException if an exception occurred while accessing the index. @throws UnsupportedOperationException if this index is not accessible by termnumber. @see IndexReader#documents(int)

      final Object parser = index2Parser.containsKey( index ) ? index2Parser.get( index ) : index.payload;
      final Method method = parser.getClass().getMethod( "parse", String.class );
      final Payload left = index.payload.copy(), right = index.payload.copy();
      if ( node.left != null ) left.set( method.invoke( parser, node.left.toString() ) );
      if ( node.right != null ) right.set( method.invoke( parser, node.right.toString() ) );
      return PayloadPredicateDocumentIterator.getInstance( index.documents( 0 ), 
          index.payload.rangeFilter( node.left == null ? null : left, node.right == null ? null : right ) ).weight( weight() );
    }
    catch( InvocationTargetException e ) {
      throw new QueryBuilderVisitorException( e.getCause() );
    }

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    ) ).run();
    Index index = DiskBasedIndex.getInstance( basename + "-text", true, true );


        /// String query = "A| B+C+G|W|S+J";
        DocumentIterator iterator = OrDocumentIterator.getInstance(
                index.documents("A"),
                MultiTermIndexIterator.getInstance(
                        index.documents("B"),
                        index.documents("C"),
                        index.documents("G")
                ),

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        /// String query = "A| B+C+G|W|S+J";
        DocumentIterator iterator = OrDocumentIterator.getInstance(
                index.documents("A"),
                MultiTermIndexIterator.getInstance(
                        index.documents("B"),
                        index.documents("C"),
                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(

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        /// String query = "A| B+C+G|W|S+J";
        DocumentIterator iterator = OrDocumentIterator.getInstance(
                index.documents("A"),
                MultiTermIndexIterator.getInstance(
                        index.documents("B"),
                        index.documents("C"),
                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(
                        index.documents("S"),

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        DocumentIterator iterator = OrDocumentIterator.getInstance(
                index.documents("A"),
                MultiTermIndexIterator.getInstance(
                        index.documents("B"),
                        index.documents("C"),
                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(
                        index.documents("S"),
                        index.documents("J")

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                MultiTermIndexIterator.getInstance(
                        index.documents("B"),
                        index.documents("C"),
                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(
                        index.documents("S"),
                        index.documents("J")
                ));

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                        index.documents("C"),
                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(
                        index.documents("S"),
                        index.documents("J")
                ));




        final int[] currDoc = new int[ 1 ];

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                        index.documents("G")
                ),
                index.documents("W"),
                MultiTermIndexIterator.getInstance(
                        index.documents("S"),
                        index.documents("J")
                ));




        final int[] currDoc = new int[ 1 ];
        // A visitor invoking positionArray() on IndexIterators positioned on the current document.

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  public void testPaste() throws IOException, ConfigurationException, SecurityException, URISyntaxException, ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException {
    
    
    Index index = Index.getInstance( basename );
    assertEquals( 2, index.documents( 0 ).frequency() );      
    assertEquals( 2, index.documents( 1 ).frequency() );
    assertEquals( 1, index.documents( 2 ).frequency() );
    assertEquals( 1, index.documents( 3 ).frequency() );
    
    SemiExternalGammaList frequencies = new SemiExternalGammaList( new InputBitStream( basename + "-mo" + DiskBasedIndex.FREQUENCIES_EXTENSION ), 1, 4 );

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  public void testPaste() throws IOException, ConfigurationException, SecurityException, URISyntaxException, ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException {
    
    
    Index index = Index.getInstance( basename );
    assertEquals( 2, index.documents( 0 ).frequency() );      
    assertEquals( 2, index.documents( 1 ).frequency() );
    assertEquals( 1, index.documents( 2 ).frequency() );
    assertEquals( 1, index.documents( 3 ).frequency() );
    
    SemiExternalGammaList frequencies = new SemiExternalGammaList( new InputBitStream( basename + "-mo" + DiskBasedIndex.FREQUENCIES_EXTENSION ), 1, 4 );

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