Examples of it.unimi.dsi.mg4j.search.DocumentIterator.accept()

Class it.unimi.dsi.mg4j.search.DocumentIterator

Examples of it.unimi.dsi.mg4j.search.DocumentIterator.accept()

it.unimi.dsi.mg4j.search.DocumentIterator.accept()
Accepts a visitor.
A document iterator is usually structured as composite, with operators as internal nodes and {@link it.unimi.dsi.mg4j.index.IndexIterator}s as leaves. This method implements the visitor pattern. @param visitor the visitor. @return an object resulting from the visit, or null if the visit was interrupted.


        for (int document = 0; document < index.numberOfDocuments; document++) {
            currDoc[ 0 ] = iterator.skipTo(document);


            if (document == currDoc[ 0 ]) {
               iterator.accept(visitor); // see method visit below.
            }
        }


        
        while( iterator.hasNext() ) {

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        }


        
        while( iterator.hasNext() ) {
          currDoc[ 0 ] = iterator.nextDocument();
          iterator.accept(  visitor );
        }
    }


}

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    DocumentIterator indexIterator = query.accept( documentIteratorBuilderVisitor );


    indexIterator.nextDocument();


    termVisitor.prepare();
    indexIterator.accept( termVisitor );
    setupVisitor.prepare();
    indexIterator.accept( setupVisitor );


    // assertEquals( 3, indexIterator.frequency() );
    assertEquals( 3, setupVisitor.frequency[ 0 ] );

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    indexIterator.nextDocument();


    termVisitor.prepare();
    indexIterator.accept( termVisitor );
    setupVisitor.prepare();
    indexIterator.accept( setupVisitor );


    // assertEquals( 3, indexIterator.frequency() );
    assertEquals( 3, setupVisitor.frequency[ 0 ] );


    assertEquals( 1, indexIterator.nextDocument() );

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    // assertEquals( 3, indexIterator.frequency() );
    assertEquals( 3, setupVisitor.frequency[ 0 ] );


    assertEquals( 1, indexIterator.nextDocument() );
    counterCollectionVisitor.prepare();
    indexIterator.accept( counterCollectionVisitor );
    assertEquals( 1, setupVisitor.count[ 0 ] );
    assertEquals( 2, indexIterator.nextDocument() );
    counterCollectionVisitor.prepare();
    indexIterator.accept( counterCollectionVisitor );
    assertEquals( 1, setupVisitor.count[ 0 ] );

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    counterCollectionVisitor.prepare();
    indexIterator.accept( counterCollectionVisitor );
    assertEquals( 1, setupVisitor.count[ 0 ] );
    assertEquals( 2, indexIterator.nextDocument() );
    counterCollectionVisitor.prepare();
    indexIterator.accept( counterCollectionVisitor );
    assertEquals( 1, setupVisitor.count[ 0 ] );
  }


  public void testCountScorer() throws QueryParserException, QueryBuilderVisitorException, IOException {

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