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 com.facebook.presto.operator.scalar.ScalarFunction

        }


        private boolean processScalarFunction(Method method)
                throws IllegalAccessException
        {
            ScalarFunction scalarFunction = method.getAnnotation(ScalarFunction.class);
            if (scalarFunction == null) {
                return false;
            }
            checkValidMethod(method);
            MethodHandle methodHandle = lookup().unreflect(method);
            String name = scalarFunction.value();
            if (name.isEmpty()) {
                name = camelToSnake(method.getName());
            }
            SqlType returnTypeAnnotation = method.getAnnotation(SqlType.class);
            checkArgument(returnTypeAnnotation != null, "Method %s return type does not have a @SqlType annotation", method);
            Type returnType = type(returnTypeAnnotation);
            Signature signature = new Signature(name.toLowerCase(), returnType, parameterTypes(method), false);


            verifyMethodSignature(method, signature.getReturnType(), signature.getArgumentTypes());


            FunctionBinder functionBinder = createFunctionBinder(method, scalarFunction.functionBinder());


            scalar(signature, methodHandle, scalarFunction.deterministic(), functionBinder, getDescription(method), scalarFunction.hidden());
            for (String alias : scalarFunction.alias()) {
                scalar(signature.withAlias(alias.toLowerCase()), methodHandle, scalarFunction.deterministic(), functionBinder, getDescription(method), scalarFunction.hidden());
            }
            return true;
        }

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Examples of com.facebook.presto.operator.scalar.ScalarFunction

        public FunctionListBuilder scalar(Class<?> clazz)
        {
            try {
                boolean foundOne = false;
                for (Method method : clazz.getMethods()) {
                    ScalarFunction scalarFunction = method.getAnnotation(ScalarFunction.class);
                    if (scalarFunction == null) {
                        continue;
                    }
                    checkValidMethod(method);
                    MethodHandle methodHandle = lookup().unreflect(method);
                    String name = scalarFunction.value();
                    if (name.isEmpty()) {
                        name = camelToSnake(method.getName());
                    }
                    String description = getDescription(method);
                    FunctionBinder functionBinder = createFunctionBinder(method, scalarFunction);
                    scalar(name, methodHandle, scalarFunction.deterministic(), functionBinder, description);
                    for (String alias : scalarFunction.alias()) {
                        scalar(alias, methodHandle, scalarFunction.deterministic(), functionBinder, description);
                    }
                    foundOne = true;
                }
                checkArgument(foundOne, "Expected class %s to contain at least one method annotated with @%s", clazz.getName(), ScalarFunction.class.getSimpleName());
            }

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Examples of com.facebook.presto.operator.scalar.ScalarFunction

        }


        private boolean processScalarFunction(Method method)
                throws IllegalAccessException
        {
            ScalarFunction scalarFunction = method.getAnnotation(ScalarFunction.class);
            if (scalarFunction == null) {
                return false;
            }
            checkValidMethod(method);
            MethodHandle methodHandle = lookup().unreflect(method);
            String name = scalarFunction.value();
            if (name.isEmpty()) {
                name = camelToSnake(method.getName());
            }
            SqlType returnTypeAnnotation = method.getAnnotation(SqlType.class);
            checkArgument(returnTypeAnnotation != null, "Method %s return type does not have a @SqlType annotation", method);
            Type returnType = type(returnTypeAnnotation);
            Signature signature = new Signature(name.toLowerCase(), returnType, parameterTypes(method), false);


            verifyMethodSignature(method, signature.getReturnType(), signature.getArgumentTypes());


            FunctionBinder functionBinder = createFunctionBinder(method, scalarFunction.functionBinder());


            scalar(signature, methodHandle, scalarFunction.deterministic(), functionBinder, getDescription(method), scalarFunction.hidden());
            for (String alias : scalarFunction.alias()) {
                scalar(signature.withAlias(alias.toLowerCase()), methodHandle, scalarFunction.deterministic(), functionBinder, getDescription(method), scalarFunction.hidden());
            }
            return true;
        }

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Examples of com.facebook.presto.operator.scalar.ScalarFunction

    }


    private boolean processScalarFunction(Method method)
            throws IllegalAccessException
    {
        ScalarFunction scalarFunction = method.getAnnotation(ScalarFunction.class);
        if (scalarFunction == null) {
            return false;
        }
        checkValidMethod(method);
        MethodHandle methodHandle = lookup().unreflect(method);
        String name = scalarFunction.value();
        if (name.isEmpty()) {
            name = camelToSnake(method.getName());
        }
        SqlType returnTypeAnnotation = method.getAnnotation(SqlType.class);
        checkArgument(returnTypeAnnotation != null, "Method %s return type does not have a @SqlType annotation", method);
        Type returnType = type(typeManager, returnTypeAnnotation);
        Signature signature = new Signature(name.toLowerCase(), returnType.getName(), Lists.transform(parameterTypes(typeManager, method), nameGetter()));


        verifyMethodSignature(method, signature.getReturnType(), signature.getArgumentTypes(), typeManager);


        List<Boolean> nullableArguments = getNullableArguments(method);


        scalar(signature, methodHandle, scalarFunction.deterministic(), getDescription(method), scalarFunction.hidden(), method.isAnnotationPresent(Nullable.class), nullableArguments);
        for (String alias : scalarFunction.alias()) {
            scalar(signature.withAlias(alias.toLowerCase()), methodHandle, scalarFunction.deterministic(), getDescription(method), scalarFunction.hidden(), method.isAnnotationPresent(Nullable.class), nullableArguments);
        }
        return true;
    }

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction


  @Override
  public void setUp() throws Exception {
    super.setUp();
    List<AbstractColumn> columns1 = Lists.newArrayList();
    ScalarFunction scalarFunction1 = TimeComponentExtractor.getInstance(
        TimeComponentExtractor.TimeComponent.MONTH);


    columns1.add(new SimpleColumn("col1"));
    columns1.add(new SimpleColumn("col2"));
    columns1.add(new AggregationColumn(new SimpleColumn("col3"),
        AggregationType.getByCode("sum")));


    ScalarFunctionColumn innerScalarFunctionColumn =
        new ScalarFunctionColumn(columns1, scalarFunction1);


    List<AbstractColumn> columns = Lists.newArrayList();
    ScalarFunction scalarFunction = TimeComponentExtractor.getInstance(
        TimeComponentExtractor.TimeComponent.YEAR);


    columns.add(new SimpleColumn("col4"));
    columns.add(new SimpleColumn("col5"));
    columns.add(innerScalarFunctionColumn);

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction

    List<String> columnIds = scalarFunctionColumn.getAllSimpleColumnIds();
    assertEquals(expectedColumnIds, columnIds);
  }


  public void testGetValue() {
    ScalarFunction scalarFunction = TimeComponentExtractor.getInstance(
        TimeComponentExtractor.TimeComponent.YEAR);


    DataTable table = new DataTable();
    table.addColumn(new ColumnDescription("dateCol", ValueType.DATE, "dateCol"));
    table.addColumn(new ColumnDescription("numberCol", ValueType.NUMBER, "numberCol"));

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction

        scalarFunctionColumn.getAllScalarFunctionColumns();
    List<ScalarFunctionColumn> expectedScalarFunctionColumns =
        Lists.newArrayList();


    List<AbstractColumn> columns1 = Lists.newArrayList();
    ScalarFunction scalarFunction1 = TimeComponentExtractor.getInstance(
        TimeComponentExtractor.TimeComponent.MONTH);


    columns1.add(new SimpleColumn("col1"));
    columns1.add(new SimpleColumn("col2"));
    columns1.add(new AggregationColumn(new SimpleColumn("col3"),

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction

    expectedScalarFunctionColumns.add(innerScalarFunctionColumn);
    assertEquals(expectedScalarFunctionColumns, scalarFunctionColumns);
  }


  public void testGetValueType() {
    ScalarFunction scalarFunction = TimeComponentExtractor.getInstance(
        TimeComponentExtractor.TimeComponent.YEAR);
    DataTable table = new DataTable();
    table.addColumn(new ColumnDescription("dateCol", ValueType.DATE, "dateCol"));
     List<AbstractColumn> columns =
        Lists.newArrayList((AbstractColumn) new SimpleColumn("dateCol"));

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction


    @Override
    public void setUp() throws Exception {
        super.setUp();
        List<AbstractColumn> columns1 = Lists.newArrayList();
        ScalarFunction scalarFunction1 = TimeComponentExtractor.getInstance(
                TimeComponentExtractor.TimeComponent.MONTH);


        columns1.add(new SimpleColumn("col1"));
        columns1.add(new SimpleColumn("col2"));
        columns1.add(new AggregationColumn(new SimpleColumn("col3"),
                AggregationType.getByCode("sum")));


        ScalarFunctionColumn innerScalarFunctionColumn =
                new ScalarFunctionColumn(columns1, scalarFunction1);


        List<AbstractColumn> columns = Lists.newArrayList();
        ScalarFunction scalarFunction = TimeComponentExtractor.getInstance(
                TimeComponentExtractor.TimeComponent.YEAR);


        columns.add(new SimpleColumn("col4"));
        columns.add(new SimpleColumn("col5"));
        columns.add(innerScalarFunctionColumn);

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Examples of com.google.visualization.datasource.query.scalarfunction.ScalarFunction

        List<String> columnIds = scalarFunctionColumn.getAllSimpleColumnIds();
        assertEquals(expectedColumnIds, columnIds);
    }


    public void testGetValue() {
        ScalarFunction scalarFunction = TimeComponentExtractor.getInstance(
                TimeComponentExtractor.TimeComponent.YEAR);


        DataTable table = new DataTable();
        table.addColumn(new ColumnDescription("dateCol", ValueType.DATE, "dateCol"));
        table.addColumn(new ColumnDescription("numberCol", ValueType.NUMBER, "numberCol"));

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