Package edu.uci.ics.hyracks.algebricks.core.algebra.expressions

Examples of edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression

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        List<Mutable<ILogicalExpression>> aggregateSequenceArgs = new ArrayList<Mutable<ILogicalExpression>>();
        aggregateSequenceArgs.add(aggregateArgs);

        List<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
        ILogicalExpression aggregateExp = new AggregateFunctionCallExpression(aggregateFunction, true,
                aggregateSequenceArgs);
        Mutable<ILogicalExpression> aggregateExpRef = new MutableObject<ILogicalExpression>(aggregateExp);
        exprs.add(aggregateExpRef);

        return new AggregateOperator(aggregateVariables, exprs);
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        Mutable<ILogicalExpression> unnestVariableRef = new MutableObject<ILogicalExpression>(
                new VariableReferenceExpression(unnestVariable));
        aggregateSequenceArgs.add(unnestVariableRef);
       
        List<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
        ILogicalExpression aggregateExp = new AggregateFunctionCallExpression(BuiltinOperators.SEQUENCE, false,
                aggregateSequenceArgs);
        Mutable<ILogicalExpression> aggregateExpRef = new MutableObject<ILogicalExpression>(aggregateExp);
        exprs.add(aggregateExpRef);

        return new AggregateOperator(aggregateVariables, exprs);
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            return false;
        }
        AbstractFunctionCallExpression functionCall = (AbstractFunctionCallExpression) logicalExpression;

        if (AGGREGATE_MAP.containsKey(functionCall.getFunctionIdentifier())) {
            AggregateFunctionCallExpression aggregateFunctionCall = (AggregateFunctionCallExpression) functionCall;
            if (aggregateFunctionCall.isTwoStep()) {
                return false;
            }
            aggregateFunctionCall.setTwoStep(true);
            aggregateFunctionCall.setStepOneAggregate(AGGREGATE_MAP.get(functionCall.getFunctionIdentifier()).first);
            aggregateFunctionCall.setStepTwoAggregate(AGGREGATE_MAP.get(functionCall.getFunctionIdentifier()).second);
            return true;
        }
        return false;
    }
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    private static ILogicalExpression afce(Function fn, boolean isTwoStep, ILogicalExpression... argExprs) {
        List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
        for (ILogicalExpression e : argExprs) {
            args.add(mutable(e));
        }
        return new AggregateFunctionCallExpression(fn, isTwoStep, args);
    }
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    private static ILogicalExpression afce(Function fn, boolean isTwoStep, ILogicalExpression... argExprs) {
        List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
        for (ILogicalExpression e : argExprs) {
            args.add(mutable(e));
        }
        return new AggregateFunctionCallExpression(fn, isTwoStep, args);
    }
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    private static ILogicalExpression afce(Function fn, boolean isTwoStep, ILogicalExpression... argExprs) {
        List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
        for (ILogicalExpression e : argExprs) {
            args.add(mutable(e));
        }
        return new AggregateFunctionCallExpression(fn, isTwoStep, args);
    }
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Related Classes of edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression

  • org.apache.vxquery.compiler.rewriter.rules.ConvertAssignSortDistinctNodesToOperatorsRule
  • org.apache.vxquery.compiler.rewriter.rules.ConvertAssignToAggregateRule
  • org.apache.vxquery.compiler.rewriter.rules.IntroduceTwoStepAggregateRule
  • org.apache.vxquery.xmlquery.translator.XMLQueryTranslator
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