Examples of ScalarFunction

com.facebook.presto.operator.scalar.ScalarFunction
com.google.visualization.datasource.query.scalarfunction.ScalarFunction
A scalar function. A scalar function can have any arity, including 0, and can also have dynamic arity. It must always produce a single value. The return type of such a function may depend on the number and types of its arguments but never on their values. An instance of a class that implements this interface can be used within a ScalarFunctionColumn. @author Liron L.
org.jboss.dashboard.function.ScalarFunction
Interface used to get the scalar value of a given collection.
Scalar functions are used in BAM to calculate the scalar values of the intervals belonging to a given data set domain property. @see org.jboss.dashboard.domain.Domain @see org.jboss.dashboard.domain.Interval

Examples of org.jboss.dashboard.function.ScalarFunction

                DataProperty _prop = dataProp.cloneProperty();
                _result.addProperty(_prop, j);


                // The values for other columns is a scalar function applied on the interval's values.
                ScalarFunctionManager scalarFunctionManager = DataProviderServices.lookup().getScalarFunctionManager();
                ScalarFunction function = scalarFunctionManager.getScalarFunctionByCode(functionCodes[j]);
                for (Interval interval : intervals) {
                    Double scalar = calculateScalar(interval, dataProp, function);
                    _result.addRowValue(j, scalar);
                }
                // After calculations, ensure the new property domain is numeric.

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Examples of org.jboss.dashboard.function.ScalarFunction


    public DataSet buildXYDataSet() {
        DataSet targetDataSet = null;
        DataProperty domainProperty = getDomainProperty();
        DataProperty rangeProperty = getRangeProperty();
        ScalarFunction scalarFunction = getRangeScalarFunction();
        CodeBlockTrace trace = new BuildXYDataSetTrace(domainProperty, rangeProperty, scalarFunction).begin();
        try {
            if (domainProperty == null || domainProperty.getDomain() == null) return null;
            if (rangeProperty == null || scalarFunction == null) return null;


            // Group the original data set by the domain property. Thus the scalar function is applied to the range values.
            DataSet sourceDataSet = domainProperty.getDataSet();
            List<DataProperty> targetDataProps = Arrays.asList(new DataProperty[]{domainProperty, rangeProperty});
            List<String> targetFunctionCodes = Arrays.asList(new String[]{CountFunction.CODE, scalarFunction.getCode()});
            targetDataSet = sourceDataSet.groupBy(domainProperty, targetDataProps, targetFunctionCodes);


            // Sort the resulting data set according to the sort policy specified.
            if (intervalsSortOrder != INTERVALS_SORT_ORDER_NONE) {
                DataSetComparator comp = new DataSetComparator();

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Examples of org.jboss.dashboard.function.ScalarFunction

    }


    public DataSet buildXYDataSet() {
        DataProperty domainProperty = getDomainProperty();
        DataProperty rangeProperty = getRangeProperty();
        ScalarFunction scalarFunction = getRangeScalarFunction();
        DataSet sourceDataSet = domainProperty.getDataSet();
        CodeBlockTrace trace = new BuildXYDataSetTrace(domainProperty, rangeProperty, scalarFunction).begin();
        try {
            if (domainProperty == null || domainProperty.getDomain() == null) return null;
            if (rangeProperty == null || scalarFunction == null) return null;


            // Group the original data set by the domain property.
            int pivot = sourceDataSet.getPropertyColumn(domainProperty);
            int range = sourceDataSet.getPropertyColumn(rangeProperty);
            int[] columns = new int[] {pivot, range};
            String[] functionCodes = new String[] {CountFunction.CODE, scalarFunction.getCode()};
            return sourceDataSet.groupBy(domainProperty, columns, functionCodes, intervalsSortCriteria, intervalsSortOrder);
        } finally {
            trace.end();
        }
    }

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Examples of org.jboss.dashboard.function.ScalarFunction

    public void setMaxNumberOfIntervals(int maxNumberOfIntervals) {
        this.maxNumberOfIntervals = maxNumberOfIntervals;
    }


    public boolean isScalarFunctionSupported(String functionCode) {
        ScalarFunction function = DataProviderServices.lookup().getScalarFunctionManager().getScalarFunctionByCode(functionCode);
        if (function == null) return false;
        return isScalarFunctionSupported(function);
    }

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Examples of org.jboss.dashboard.function.ScalarFunction

        // This change allow you to restrict the scalar functions supported
        if (scalarFunctionsSupported != null) return scalarFunctionsSupported;
        List results = new ArrayList();
        ScalarFunction[] sfs = DataProviderServices.lookup().getScalarFunctionManager().getAllScalarFunctions();
        for (int i = 0; i < sfs.length; i++) {
            ScalarFunction sf = sfs[i];
            if (sf != null && isScalarFunctionSupported(sf)) results.add(sf);
        }
        return results;
    }

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Examples of org.jboss.dashboard.function.ScalarFunction

                    if (!CollectionUtils.exists(dataSetValues, nonNullElements)) {
                        // If all the interval elements to group are null then set 0.
                        groupByDataSet.addRowValue(j, new Double(0));
                    } else {
                        ScalarFunctionManager scalarFunctionManager = DataProviderServices.lookup().getScalarFunctionManager();
                        ScalarFunction grFunction = scalarFunctionManager.getScalarFunctionByCode(grFunctionCode);
                        double value = grFunction.scalar(dataSetValues);
                        groupByDataSet.addRowValue(j, new Double(value));
                    }
                }
            }
        }

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Examples of org.jboss.dashboard.function.ScalarFunction

    }


    public DataSet buildXYDataSet() {
        DataProperty domainProperty = getDomainProperty();
        DataProperty rangeProperty = getRangeProperty();
        ScalarFunction scalarFunction = getRangeScalarFunction();
        DataSet sourceDataSet = domainProperty.getDataSet();
        CodeBlockTrace trace = new BuildXYDataSetTrace(domainProperty, rangeProperty, scalarFunction).begin();
        try {
            if (domainProperty == null || domainProperty.getDomain() == null) return null;
            if (rangeProperty == null || scalarFunction == null) return null;


            // Group the original data set by the domain property.
            int pivot = sourceDataSet.getPropertyColumn(domainProperty);
            int range = sourceDataSet.getPropertyColumn(rangeProperty);
            int[] columns = new int[] {pivot, range};
            String[] functionCodes = new String[] {CountFunction.CODE, scalarFunction.getCode()};
            return sourceDataSet.groupBy(domainProperty, columns, functionCodes, intervalsSortCriteria, intervalsSortOrder);
        } finally {
            trace.end();
        }
    }

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Examples of org.jboss.dashboard.function.ScalarFunction

                    _result.addRowValue(j, interval);
                }
            } else {
                // The values for other columns is a scalar function applied on the interval's values.
                ScalarFunctionManager scalarFunctionManager = DataProviderServices.lookup().getScalarFunctionManager();
                ScalarFunction function = scalarFunctionManager.getScalarFunctionByCode(functionCodes[j]);
                for (Interval interval : intervals) {
                    Double scalar = calculateScalar(interval, dataProp, function);
                    _result.addRowValue(j, scalar);
                }
                // After calculations, ensure the new property domain is numeric.

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Examples of org.jboss.dashboard.function.ScalarFunction

                DataProperty _prop = dataProp.cloneProperty();
                _result.addProperty(_prop, j);


                // The values for other columns is a scalar function applied on the interval's values.
                ScalarFunctionManager scalarFunctionManager = DataProviderServices.lookup().getScalarFunctionManager();
                ScalarFunction function = scalarFunctionManager.getScalarFunctionByCode(functionCodes[j]);
                for (Interval interval : intervals) {
                    Double scalar = calculateScalar(interval, dataProp, function);
                    _result.addRowValue(j, scalar);
                }
                // After calculations, ensure the new property domain is numeric.

View Full Code Here

Examples of org.jboss.dashboard.function.ScalarFunction

    }


    public DataSet buildXYDataSet() {
        DataProperty domainProperty = getDomainProperty();
        DataProperty rangeProperty = getRangeProperty();
        ScalarFunction scalarFunction = getRangeScalarFunction();
        DataSet sourceDataSet = domainProperty.getDataSet();
        CodeBlockTrace trace = new BuildXYDataSetTrace(domainProperty, rangeProperty, scalarFunction).begin();
        try {
            if (domainProperty == null || domainProperty.getDomain() == null) return null;
            if (rangeProperty == null || scalarFunction == null) return null;


            // Group the original data set by the domain property.
            int pivot = sourceDataSet.getPropertyColumn(domainProperty);
            int range = sourceDataSet.getPropertyColumn(rangeProperty);
            int[] columns = new int[] {pivot, range};
            String[] functionCodes = new String[] {CountFunction.CODE, scalarFunction.getCode()};
            return sourceDataSet.groupBy(domainProperty, columns, functionCodes, intervalsSortCriteria, intervalsSortOrder);
        } finally {
            trace.end();
        }
    }

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