Package org.apache.pig.experimental.logical.expression

Examples of org.apache.pig.experimental.logical.expression.ExpToPhyTranslationVisitor

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

        poFilter.setPlan(currentPlan);
        currentPlan = currentPlans.pop();
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        for (int i=0; i<exps.size(); i++) {
            currentPlan = new PhysicalPlan();
            // translate the expression plan
            PlanWalker childWalker = new ReverseDependencyOrderWalker(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) {
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            // Save the old walker and use childWalker as current Walker
            pushWalker(childWalker);
           
            // We create a new ExpToPhyTranslationVisitor to walk the ExpressionPlan
            currentWalker.walk(
                    new ExpToPhyTranslationVisitor(
                            currentWalker.getPlan(),
                            childWalker, loj, currentPlan, logToPhyMap ) );
           
            exprPlans.add(currentPlan);
            popWalker();
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//                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalker(loSplitOutput.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, loSplitOutput, currentPlan, logToPhyMap ) );
        popWalker();

        poFilter.setPlan(currentPlan);
        currentPlan = currentPlans.pop();
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Related Classes of org.apache.pig.experimental.logical.expression.ExpToPhyTranslationVisitor

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  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator
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  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression
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  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.EqualToExpr
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.GreaterThanExpr
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  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.Mod
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