Examples of org.apache.pig.newplan.OperatorPlan.connect()

Class org.apache.pig.newplan.OperatorPlan

Examples of org.apache.pig.newplan.OperatorPlan.connect()

org.apache.pig.newplan.OperatorPlan.connect()
Connect two operators in the plan, controlling which position in the edge lists that the from and to edges are placed. @param from Operator edge will come from @param fromPos Position in the array for the from edge @param to Operator edge will go to @param toPos Position in the array for the to edge

        throws FrontendException {
        // connect the foreach operator with predecessors of cube operator
        List<Operator> opers = op.getPlan().getPredecessors(op);
        for (Operator oper : opers) {
            OperatorPlan foreachPlan = foreach.getPlan();
            foreachPlan.connect(oper, (Operator) foreach);
        }


        // disconnect the cube operator from the plan
        opers = foreach.getPlan().getPredecessors(foreach);
        for (Operator lop : opers) {

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         Operator op2 = new OP_Filter("mmm2", pattern);
         Operator op3 = new OP_Join("mmm3", pattern);
         pattern.add(op1);
         pattern.add(op2);
         pattern.add(op3);
         pattern.connect(op1, op3);
         pattern.connect(op2, op3);


         Rule r = new SillyRule("basic", pattern);
         List<OperatorPlan> l = r.match(plan);
         assertEquals(1, l.size());

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         Operator op3 = new OP_Join("mmm3", pattern);
         pattern.add(op1);
         pattern.add(op2);
         pattern.add(op3);
         pattern.connect(op1, op3);
         pattern.connect(op2, op3);


         Rule r = new SillyRule("basic", pattern);
         List<OperatorPlan> l = r.match(plan);
         assertEquals(1, l.size());
         OperatorPlan match = l.get(0);

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        pattern = new SillyPlan();
        Operator s1 = new OP_Join("mmm1", pattern);
        Operator s2 = new OP_Filter("mmm2", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.connect(s1, s2);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(1, l.size());

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        pattern = new SillyPlan();
        s1 = new OP_Filter("mmm1", pattern);
        s2 = new OP_Store("mmm2", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.connect(s1, s2);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(2, l.size());

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        s2 = new OP_Load("mmm2", pattern);
        Operator s3 = new OP_Join("jjj", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.add(s3);
        pattern.connect(s1, s3);
        pattern.connect(s2, s3);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(l.size(), 1);

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        Operator s3 = new OP_Join("jjj", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.add(s3);
        pattern.connect(s1, s3);
        pattern.connect(s2, s3);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(l.size(), 1);

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        s2 = new OP_Filter("mmm2", pattern);
        s3 = new OP_Filter("mmm3", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.add(s3);
        pattern.connect(s1, s2);
        pattern.connect(s1, s3);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(1, l.size());

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        s3 = new OP_Filter("mmm3", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.add(s3);
        pattern.connect(s1, s2);
        pattern.connect(s1, s3);


        r = new SillyRule("basic", pattern);
        l = r.match(plan);
        assertEquals(1, l.size());

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        Operator s4 = new OP_Filter("mmm4", pattern);
        pattern.add(s1);
        pattern.add(s2);
        pattern.add(s3);
        pattern.add(s4);
        pattern.connect(s1, s2);
        pattern.connect(s1, s3);
        pattern.connect(s1, s4);


        Rule r = new SillyRule("basic", pattern);
        List<OperatorPlan> l = r.match(plan);

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