Package cascading.pipe.joiner

Examples of cascading.pipe.joiner.RightJoin$JoinIterator


    results.add( new Tuple( "4", "d3", "4", "D1" ) );
    results.add( new Tuple( null, null, "6", "F1" ) );
    results.add( new Tuple( null, null, "6", "F2" ) );
    results.add( new Tuple( null, "h1", null, "H1" ) );

    handleJoins( "cogroupouterinner", new RightJoin(), results, 8, false, null );
    handleJoins( "cogroupouterinner-resultgroup", new RightJoin(), results, 8, true, null );
    }
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    results.add( new Tuple( "4", "d3", "4", "D1" ) );
    results.add( new Tuple( null, null, "6", "F1" ) );
    results.add( new Tuple( null, null, "6", "F2" ) );
    results.add( new Tuple( null, null, null, "H1" ) );

    handleJoins( "cogroupouterinnernull", new RightJoin(), results, 9, false, new NullNotEquivalentComparator() );
    handleJoins( "cogroupouterinnernull-resultgroup", new RightJoin(), results, 9, true, new NullNotEquivalentComparator() );
    }
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//    fielded = new Each( fielded, new Debug( true ) );

    Pipe inner = new CoGroup( "inner", fielded, new Fields( 0 ), uniques, new Fields( "word" ), new InnerJoin() );
    Pipe outer = new CoGroup( "outer", fielded, new Fields( 0 ), uniques, new Fields( "word" ), new OuterJoin() );
    Pipe left = new CoGroup( "left", fielded, new Fields( 0 ), uniques, new Fields( "word" ), new LeftJoin() );
    Pipe right = new CoGroup( "right", fielded, new Fields( 0 ), uniques, new Fields( "word" ), new RightJoin() );

    Pipe[] heads = Pipe.pipes( uniques, fielded );
    Map<String, Tap> sources = Cascades.tapsMap( heads, Tap.taps( source, source ) );

    Pipe[] tails = Pipe.pipes( inner, outer, left, right );
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    results.add( new Tuple( "4", "d3", "4", "D1" ) );
    results.add( new Tuple( null, null, "6", "F1" ) );
    results.add( new Tuple( null, null, "6", "F2" ) );
    results.add( new Tuple( null, "h1", null, "H1" ) );

    handleJoins( "joinouterinner", new RightJoin(), results );
    }
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    Tap sink = new Hfs(new TextLine(), getTestRoot() + "/output");

    Pipe lhsPipe = new Pipe("lhs");
    Pipe rhsPipe = new Pipe("rhs");

    Pipe joined = new BloomJoin(rhsPipe, new Fields("key"), lhsPipe, new Fields("key"), new Fields("key", "key2", "lhs-value", "key-copy", "key2-copy", "rhs-value"), new RightJoin(), BloomAssembly.CoGroupOrder.LARGE_RHS);

    CascadingUtil.get().getFlowConnector().connect(sources, sink, joined).complete();

    List<Tuple> results = TapHelper.getAllTuples(sink);
    assertEquals("All tuples from the right side should be kept", 21, results.size());
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      case INNER:
        return new InnerJoin();
      case LEFT:
        return new LeftJoin();
      case RIGHT:
        return new RightJoin();
      case FULL:
        return new OuterJoin();
      default:
        throw new IllegalStateException( "unknown join type" );
      }
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