Package org.apache.pig.impl.logicalLayer

Examples of org.apache.pig.impl.logicalLayer.ExpressionOperator

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            NotExpression not = new NotExpression(exprPlan, DataType.BOOLEAN, exprOpsMap.get(exp));
            exprOpsMap.put(uniOp, not);
        }

        public void visit(LOIsNull uniOp) throws VisitorException {
            ExpressionOperator exp = uniOp.getOperand();
            IsNullExpression isNull = new IsNullExpression(exprPlan, DataType.BOOLEAN, exprOpsMap.get(exp));
            exprOpsMap.put(uniOp, isNull);
        }
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    }

    public void visit(LOAnd binOp) throws VisitorException {
        // if lhs or rhs is null constant then cast it to boolean
        insertCastsForNullToBoolean(binOp);
        ExpressionOperator lhs = binOp.getLhsOperand();
        ExpressionOperator rhs = binOp.getRhsOperand();

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;
        Schema.FieldSchema fs = new Schema.FieldSchema(null, DataType.BOOLEAN);

        if (  (lhsType != DataType.BOOLEAN)  ||
              (rhsType != DataType.BOOLEAN)  ) {
            int errCode = 1038;
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    @Override
    public void visit(LOOr binOp) throws VisitorException {
        // if lhs or rhs is null constant then cast it to boolean
        insertCastsForNullToBoolean(binOp);
        ExpressionOperator lhs = binOp.getLhsOperand();
        ExpressionOperator rhs = binOp.getRhsOperand();

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;
        Schema.FieldSchema fs = new Schema.FieldSchema(null, DataType.BOOLEAN);

        if (  (lhsType != DataType.BOOLEAN)  ||
              (rhsType != DataType.BOOLEAN)  ) {
            int errCode = 1038;
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    }

    @Override
    public void visit(LOMultiply binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
             DataType.isNumberType(rhsType) ) {

            // return the bigger type
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        }
    }

    @Override
    public void visit(LODivide binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
             DataType.isNumberType(rhsType) ) {

            // return the bigger type
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        }
    }

    @Override
    public void visit(LOAdd binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
             DataType.isNumberType(rhsType) ) {

            // return the bigger type
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        }
    }

    @Override
    public void visit(LOSubtract binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
                DataType.isNumberType(rhsType) ) {

            // return the bigger type
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    @Override
    public void visit(LOGreaterThan binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
             DataType.isNumberType(rhsType) ) {
            // If not the same type, we cast them to the same
            byte biggerType = lhsType > rhsType ? lhsType:rhsType ;
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    }

    @Override
    public void visit(LOGreaterThanEqual binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;

        if ( DataType.isNumberType(lhsType) &&
             DataType.isNumberType(rhsType) ) {
            // If not the same type, we cast them to the same
            byte biggerType = lhsType > rhsType ? lhsType:rhsType ;
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    }

    @Override
    public void visit(LOLesserThan binOp) throws VisitorException {
        ExpressionOperator lhs = binOp.getLhsOperand() ;
        ExpressionOperator rhs = binOp.getRhsOperand() ;

        byte lhsType = lhs.getType() ;
        byte rhsType = rhs.getType() ;
        if ( DataType.isNumberType(lhsType) &&
                DataType.isNumberType(rhsType) ) {
            // If not the same type, we cast them to the same
            byte biggerType = lhsType > rhsType ? lhsType:rhsType ;
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Related Classes of org.apache.pig.impl.logicalLayer.ExpressionOperator

  • org.apache.pig.experimental.logical.LogicalPlanMigrationVistor$LogicalExpPlanMigrationVistor
  • org.apache.pig.impl.logicalLayer.optimizer.PruneColumns
  • org.apache.pig.impl.logicalLayer.validators.TypeCheckingVisitor
  • org.apache.pig.newplan.logical.LogicalExpPlanMigrationVistor
  • org.apache.pig.pen.AugmentBaseDataVisitor
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