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(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() ;


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

View Full Code Here

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


    }


    @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

View Full Code Here

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

        exprOpsMap.put(con, ce);       
        translateConnection(con, ce);
    }
    
    public void visit(LOGreaterThan op) throws VisitorException {
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        GreaterThanExpression eq = new GreaterThanExpression
        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

View Full Code Here

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

        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }


    public void visit(LOLesserThan op) throws VisitorException {
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        LessThanExpression eq = new LessThanExpression
        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

View Full Code Here

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

        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }


    public void visit(LOGreaterThanEqual op) throws VisitorException {
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        GreaterThanEqualExpression eq = new GreaterThanEqualExpression
        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

View Full Code Here

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

        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }


    public void visit(LOLesserThanEqual op) throws VisitorException {
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        LessThanEqualExpression eq = new LessThanEqualExpression
        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

View Full Code Here

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

        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }


    public void visit(LOEqual op) throws VisitorException {     
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
                
        EqualExpression eq = new EqualExpression(exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }

View Full Code Here

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

        }


    }


    public void visit(LOBinCond op) throws VisitorException {
        ExpressionOperator condition = op.getCond();
        ExpressionOperator left = op.getLhsOp();
        ExpressionOperator right = op.getRhsOp();
        
        BinCondExpression exp = new BinCondExpression(exprPlan, 
                exprOpsMap.get(condition), exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, exp);
    }

View Full Code Here

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

                exprOpsMap.get(condition), exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, exp);
    }


    public void visit(LOCast cast) throws VisitorException {
        ExpressionOperator exp = cast.getExpression();
        
        CastExpression c = null;
        try {
            c = new CastExpression(exprPlan, exprOpsMap.get(exp), Util.translateFieldSchema(cast.getFieldSchema()));
        } catch (FrontendException e) {

View Full Code Here

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

        c.setFuncSpec(cast.getLoadFuncSpec());
        exprOpsMap.put(cast, c);
    }
    
    public void visit(LORegexp binOp) throws VisitorException {
        ExpressionOperator left = binOp.getLhsOperand();
        ExpressionOperator right = binOp.getRhsOperand();
        
        RegexExpression ae = new RegexExpression(exprPlan
                , exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(binOp, ae);
    }

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.