Examples of PlanWalker


Examples of org.apache.pig.newplan.PlanWalker

        currentPlan = new PhysicalPlan();

//        PlanWalker childWalker = currentWalker
//                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loSplitOutput.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, loSplitOutput, currentPlan, logToPhyMap) );
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Examples of org.apache.pig.newplan.PlanWalker

   
    @Override
    public void visit(LOForEach fe) throws FrontendException{
        mapToPredLoadFunc(fe);
        LogicalPlan innerPlan = fe.getInnerPlan();
        PlanWalker newWalker = currentWalker.spawnChildWalker(innerPlan);
        pushWalker(newWalker);
        currentWalker.walk(this);
        popWalker();
    }
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Examples of org.apache.pig.newplan.PlanWalker

        // then Reset the input number in project expressions
       
        LogicalPlan innerPlan = foreach.getInnerPlan();
       
        //visit the inner plan first
        PlanWalker newWalker = currentWalker.spawnChildWalker(innerPlan);
        pushWalker(newWalker);
        currentWalker.walk(this);
        popWalker();
       
        //get the LOGenerate
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Examples of org.apache.pig.newplan.PlanWalker

        currentPlan = new PhysicalPlan();

        //        PlanWalker childWalker = currentWalker
        //                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(filter.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, filter, currentPlan, logToPhyMap ) );
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Examples of org.apache.pig.newplan.PlanWalker

        // convert all the logical expression plans to physical expression plans
        currentPlans.push(currentPlan);
        for (LogicalExpressionPlan plan : logPlans) {
            currentPlan = new PhysicalPlan();
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(plan);
            pushWalker(childWalker);
            childWalker.walk(new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                    childWalker, sort, currentPlan, logToPhyMap));
            sortPlans.add(currentPlan);
            popWalker();
        }
        currentPlan = currentPlans.pop();
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Examples of org.apache.pig.newplan.PlanWalker

                // convert all the logical expression plans to physical expression plans
                currentPlans.push(currentPlan);
                for (LogicalExpressionPlan plan : logPlans) {
                    currentPlan = new PhysicalPlan();
                    PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(plan);
                    pushWalker(childWalker);
                    childWalker.walk(new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                            childWalker, loRank, currentPlan, logToPhyMap));
                    rankPlans.add(currentPlan);
                    popWalker();
                }
                currentPlan = currentPlans.pop();
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Examples of org.apache.pig.newplan.PlanWalker

        // The physical plan should contain the expression plan for this predecessor plus
        // the subtree starting with this predecessor
        for (int i=0; i<exps.size(); i++) {
            currentPlan = new PhysicalPlan();
            // translate the expression plan
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(exps.get(i));
            pushWalker(childWalker);
            childWalker.walk(new ExpToPhyTranslationVisitor(exps.get(i),
                    childWalker, gen, currentPlan, logToPhyMap));
            popWalker();

            List<Operator> leaves = exps.get(i).getSinks();
            for(Operator l: leaves) {
                PhysicalOperator op = logToPhyMap.get(l);
                if (l instanceof ProjectExpression ) {
                    int input = ((ProjectExpression)l).getInputNum();

                    // for each sink projection, get its input logical plan and translate it
                    Operator pred = preds.get(input);
                    childWalker = new SubtreeDependencyOrderWalker(inner, pred);
                    pushWalker(childWalker);
                    childWalker.walk(this);
                    popWalker();

                    // get the physical operator of the leaf of input logical plan
                    PhysicalOperator leaf = logToPhyMap.get(pred);
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Examples of org.apache.pig.newplan.PlanWalker

        for( LogicalExpressionPlan lp : plans ) {
            currentPlan = new PhysicalPlan();

            // We spawn a new Dependency Walker and use it
            // PlanWalker childWalker = currentWalker.spawnChildWalker(lp);
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(lp);

            // Save the old walker and use childWalker as current Walker
            pushWalker(childWalker);

            // We create a new ExpToPhyTranslationVisitor to walk the ExpressionPlan
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Examples of org.apache.pig.newplan.PlanWalker

        if (loLimit.getLimitPlan() != null) {
            // add expression plan to POLimit
            currentPlans.push(currentPlan);
            currentPlan = new PhysicalPlan();
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loLimit.getLimitPlan());
            pushWalker(childWalker);
            currentWalker.walk(new ExpToPhyTranslationVisitor(currentWalker.getPlan(), childWalker, loLimit,
                    currentPlan, logToPhyMap));
            poLimit.setLimitPlan(currentPlan);
            popWalker();
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Examples of org.apache.pig.newplan.PlanWalker

        currentPlan = new PhysicalPlan();

//        PlanWalker childWalker = currentWalker
//                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loSplitOutput.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, loSplitOutput, currentPlan, logToPhyMap) );
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