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 com.draagon.meta.manager.exp.ExpressionOperator

    {
      return getExpressionResult( mc, ((ExpressionGroup) exp ).getGroup(), obj );
    }
    else if ( exp instanceof ExpressionOperator )
    {
      ExpressionOperator oper = (ExpressionOperator) exp;


      boolean a = getExpressionResult( mc, oper.getExpressionA(), obj );
      boolean b = getExpressionResult( mc, oper.getExpressionB(), obj );


      boolean rc = false;
      if ( oper.getOperator() == ExpressionOperator.AND )
        rc = a & b;
      else
        rc = a | b;


      //ystem.out.println( "[" + oper.getExpressionA() + "](" + a + ") {" + oper.getOperator() + "} [" + oper.getExpressionB() + "](" + b + ") = " + rc );

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Examples of oracle.toplink.essentials.expressions.ExpressionOperator

    /**
     * INTERNAL:
     * Override the default locate operator
     */
    protected ExpressionOperator operatorLocate() {
        ExpressionOperator result = new ExpressionOperator();
        result.setSelector(ExpressionOperator.Locate);
        Vector v = new Vector(3);
        v.addElement("STRPOS(");
        v.addElement(", ");
        v.addElement(")");
        result.printsAs(v);
        result.bePrefix();
        result.setNodeClass(RelationExpression.class);
        return result;
    }

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


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

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

    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

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

        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

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

    }


    @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" ;

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

    }


    @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;

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

        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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