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.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator

    }


    @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;

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

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

        currentPlan.add(exprOp);        
    }
    
    @Override
    public void visit( MapLookupExpression op ) throws FrontendException {
        ExpressionOperator physOp = new POMapLookUp(new OperatorKey(DEFAULT_SCOPE,
                nodeGen.getNextNodeId(DEFAULT_SCOPE)));
        ((POMapLookUp)physOp).setLookUpKey(op.getLookupKey() );
        physOp.setResultType(op.getType());
        physOp.setAlias(op.getFieldSchema().alias);
        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;

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

                .getNextNodeId(DEFAULT_SCOPE)));
//        physOp.setAlias(op.getAlias());
        currentPlan.add(pCast);


        logToPhyMap.put(op, pCast);
        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getExpression());
        pCast.setResultType(op.getType());
        pCast.setFieldSchema(new ResourceSchema.ResourceFieldSchema(Util.translateFieldSchema(op.getFieldSchema())));
        FuncSpec lfSpec = op.getFuncSpec();
        if(null != lfSpec) {

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

                .getNextNodeId(DEFAULT_SCOPE)));
//        physOp.setAlias(op.getAlias());
        currentPlan.add(pNot);


        logToPhyMap.put(op, pNot);
        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getExpression());
        pNot.setExpr(from);
        pNot.setResultType(op.getType());
        pNot.setOperandType(op.getType());
        try {

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

                .getNextNodeId(DEFAULT_SCOPE)));
//        physOp.setAlias(op.getAlias());
        currentPlan.add(pIsNull);


        logToPhyMap.put(op, pIsNull);
        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getExpression());
        pIsNull.setExpr(from);
        pIsNull.setResultType(op.getType());
        pIsNull.setOperandType(op.getExpression().getType());
        try {

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

                .getNextNodeId(DEFAULT_SCOPE)));
//        physOp.setAlias(op.getAlias());
        currentPlan.add(pNegative);


        logToPhyMap.put(op, pNegative);
        ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
                .getExpression());
        pNegative.setExpr(from);
        pNegative.setResultType(op.getType());        
        try {
            currentPlan.connect(from, pNegative);

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

        }
    }


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

        }
    }


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

        }
    }


    @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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