Examples of ExpressionOperator

com.draagon.meta.manager.exp.ExpressionOperator
oracle.toplink.essentials.expressions.ExpressionOperator

Purpose: ADVANCED: The expression operator is used internally to define SQL operations and functions. It is possible for an advanced user to define their own operators.
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator
A base class for all types of expressions. All expression operators must extend this class.
org.apache.pig.impl.logicalLayer.ExpressionOperator
org.eclipse.persistence.expressions.ExpressionOperator

Purpose: ADVANCED: The expression operator is used internally to define SQL operations and functions. It is possible for an advanced user to define their own operators.

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






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


    }


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


    }


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


    }


    @Override
    public void visit(LOLesserThanEqual 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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Examples of org.apache.pig.impl.logicalLayer.ExpressionOperator






    @Override
    public void visit(LOEqual 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) ) {


            byte biggerType = lhsType > rhsType ? lhsType:rhsType ;

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


    }


    @Override
    public void visit(LONotEqual 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) ) {

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


    }


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


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


        if ( (lhsType == DataType.INTEGER) &&
             (rhsType == DataType.INTEGER)
           ) {
           //do nothing

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

        if (leaves.size() > 1) {
            int errCode = 2060;
            String msg = "Expected one leaf. Found " + leaves.size() + " leaves.";
            throw new TypeCheckerException(msg, errCode, PigException.BUG);
        }
        ExpressionOperator currentOutput = (ExpressionOperator) leaves.get(0);
        collectCastWarning(frj, currentOutput.getType(), toType);
        OperatorKey newKey = genNewOperatorKey(currentOutput);
        LOCast cast = new LOCast(innerPlan, newKey, toType);
        innerPlan.add(cast);
        try {
            innerPlan.connect(currentOutput, cast);

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

        if (leaves.size() > 1) {
            int errCode = 2060;
            String msg = "Expected one leaf. Found " + leaves.size() + " leaves.";
            throw new TypeCheckerException(msg, errCode, PigException.BUG);
        }
        ExpressionOperator currentOutput = (ExpressionOperator) leaves.get(0) ;
        collectCastWarning(cg, currentOutput.getType(), toType) ;
        OperatorKey newKey = genNewOperatorKey(currentOutput) ;
        LOCast cast = new LOCast(innerPlan, newKey, toType) ;
        innerPlan.add(cast) ;
        try {
            innerPlan.connect(currentOutput, cast) ;

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

    }


    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() ;


        if (  (lhsType != DataType.BOOLEAN)  ||
              (rhsType != DataType.BOOLEAN)  ) {
            int errCode = 1038;
            String msg = "Operands of AND/OR can be boolean only" ;

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