Package org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Examples of org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator


      }
      return ret;
    }
   
    private Result getResult(PhysicalPlan plan, byte resultType) throws ExecException {
      ExpressionOperator Op = (ExpressionOperator) plan.getLeaves().get(0);
      Result res = null;
     
      switch (resultType) {
            case DataType.BYTEARRAY:
                res = Op.getNext(dummyDBA);
                break;
            case DataType.CHARARRAY:
                res = Op.getNext(dummyString);
                break;
            case DataType.DOUBLE:
                res = Op.getNext(dummyDouble);
                break;
            case DataType.FLOAT:
                res = Op.getNext(dummyFloat);
                break;
            case DataType.INTEGER:
                res = Op.getNext(dummyInt);
                break;
            case DataType.LONG:
                res = Op.getNext(dummyLong);
                break;
            case DataType.TUPLE:
                res = Op.getNext(dummyTuple);
                break;

            default: {
                int errCode = 2082;
                String msg = "Did not expect result of type: " +
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    public void setPlans(List<PhysicalPlan> plans) {
        this.plans = plans;
        leafOps.clear();
        for (PhysicalPlan plan : plans) {
            ExpressionOperator leaf = (ExpressionOperator)plan.getLeaves().get(0);
            leafOps.add(leaf);
        }           
    }
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    public void setPlans(List<PhysicalPlan> plans) throws PlanException {
        this.plans = plans;
        leafOps.clear();
        int keyIndex = 0; // zero based index for fields in the key
        for (PhysicalPlan plan : plans) {
            ExpressionOperator leaf = (ExpressionOperator)plan.getLeaves().get(0);
            leafOps.add(leaf);
           
            // don't optimize CROSS
            if(!isCross) {
                // Look for the leaf Ops which are POProject operators - get the
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    public void setSecondaryPlans(List<PhysicalPlan> plans) throws PlanException {
        this.secondaryPlans = plans;
        secondaryLeafOps.clear();
        int keyIndex = 0; // zero based index for fields in the key
        for (PhysicalPlan plan : plans) {
            ExpressionOperator leaf = (ExpressionOperator)plan.getLeaves().get(0);
            secondaryLeafOps.add(leaf);
           
            // don't optimize CROSS
            if(!isCross) {
                // Look for the leaf Ops which are POProject operators - get the
View Full Code Here

        this.plans = plans;
        leafOps.clear();
        mProjectedColsMap.clear();
        int keyIndex = 0; // zero based index for fields in the key
        for (PhysicalPlan plan : plans) {
            ExpressionOperator leaf = (ExpressionOperator)plan.getLeaves().get(0);
            leafOps.add(leaf);
           
            // don't optimize CROSS
            if(!isCross) {
                // Look for the leaf Ops which are POProject operators - get the
View Full Code Here

    }

    @Override
    public void visit(LOBinCond op) throws VisitorException {
        String scope = op.getOperatorKey().scope;
        ExpressionOperator physOp = new POBinCond(new OperatorKey(scope,
                nodeGen.getNextNodeId(scope)), op.getRequestedParallelism());
        physOp.setAlias(op.getAlias());
        logToPhyMap.put(op, physOp);
        POBinCond phy = (POBinCond) physOp;
        ExpressionOperator cond = (ExpressionOperator)logToPhyMap.get(op.getCond());
        phy.setCond(cond);
        ExpressionOperator lhs = (ExpressionOperator)logToPhyMap.get(op.getLhsOp());
        phy.setLhs(lhs);
        ExpressionOperator rhs = (ExpressionOperator)logToPhyMap.get(op.getRhsOp());
        phy.setRhs(rhs);
        phy.setResultType(op.getType());
        currentPlan.add(physOp);

        List<LogicalOperator> ops = op.getPlan().getPredecessors(op);

        for (LogicalOperator l : ops) {
            ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(l);
            try {
                currentPlan.connect(from, physOp);
            } catch (PlanException e) {
                int errCode = 2015;
                String msg = "Invalid physical operators in the physical plan" ;
View Full Code Here

    }

    @Override
    protected void visit(LONegative op) throws VisitorException {
        String scope = op.getOperatorKey().scope;
        ExpressionOperator physOp = new PONegative(new OperatorKey(scope,
                nodeGen.getNextNodeId(scope)), op.getRequestedParallelism(),
                null);
        physOp.setAlias(op.getAlias());
        currentPlan.add(physOp);

        logToPhyMap.put(op, physOp);

        List<LogicalOperator> inputs = op.getPlan().getPredecessors(op);
        ExpressionOperator from;
       
        if(inputs != null) {
            from = (ExpressionOperator)logToPhyMap.get(inputs.get(0));
        } else {
            int errCode = 2051;
View Full Code Here

        String scope = op.getOperatorKey().scope;
        UnaryComparisonOperator physOp = new POIsNull(new OperatorKey(scope, nodeGen
                .getNextNodeId(scope)), op.getRequestedParallelism(), null);
        physOp.setAlias(op.getAlias());
        List<LogicalOperator> inputs = op.getPlan().getPredecessors(op);
        ExpressionOperator from;
       
        if(inputs != null) {
            from = (ExpressionOperator)logToPhyMap.get(inputs.get(0));
        } else {
            int errCode = 2051;
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    }

    @Override
    protected void visit(LOMapLookup op) throws VisitorException {
        String scope = (op.getOperatorKey()).scope;
        ExpressionOperator physOp = new POMapLookUp(new OperatorKey(scope,
                nodeGen.getNextNodeId(scope)), op.getRequestedParallelism(), op
                .getLookUpKey());
        physOp.setResultType(op.getType());
        physOp.setAlias(op.getAlias());
        currentPlan.add(physOp);

        logToPhyMap.put(op, physOp);

        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getMap());
        try {
            currentPlan.connect(from, physOp);
        } catch (PlanException e) {
            int errCode = 2015;
View Full Code Here

                .getNextNodeId(scope)), op.getRequestedParallelism());
        physOp.setAlias(op.getAlias());
        currentPlan.add(physOp);

        logToPhyMap.put(op, physOp);
        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getExpression());
        physOp.setResultType(op.getType());
        try {
            if (op.getType()==DataType.BAG || op.getType()==DataType.TUPLE) {
                physOp.setFieldSchema(new ResourceFieldSchema(op.getFieldSchema()));
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