Examples of QuerySelection

com.google.visualization.datasource.query.QuerySelection
Selection definition for a query. Selection is defined as a list of column IDs. It can also include aggregations for grouping/pivoting and scalar functions. @author Itai R.

Examples of com.google.visualization.datasource.query.QuerySelection

    // select sum(age), day(hireDate), hour(min(lunchTime)) where name="liron"
    // group by hireDate pivot dept
    Query q = new Query();


    // Add selection.
    QuerySelection selection = new QuerySelection();
    selection.addColumn(new AggregationColumn(new SimpleColumn("age"),
        AggregationType.SUM));
    selection.addColumn(new ScalarFunctionColumn(
        Lists.newArrayList((AbstractColumn) new SimpleColumn("hireDate")),
        TimeComponentExtractor.getInstance(
            TimeComponentExtractor.TimeComponent.DAY)));
    selection.addColumn(new ScalarFunctionColumn(
        Lists.newArrayList((AbstractColumn) new AggregationColumn(
            new SimpleColumn("lunchTime"), AggregationType.MIN)),
        TimeComponentExtractor.getInstance(
            TimeComponentExtractor.TimeComponent.HOUR)));
    q.setSelection(selection);

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Examples of com.google.visualization.datasource.query.QuerySelection


    // select day(hireDate), hireDate, age order by day(hireDate)
    Query q = new Query();


    // Add selection.
    QuerySelection selection = new QuerySelection();
    selection.addColumn(new ScalarFunctionColumn(
        Lists.newArrayList((AbstractColumn) new SimpleColumn("hireDate")),
        TimeComponentExtractor.getInstance(
            TimeComponentExtractor.TimeComponent.DAY)));
    selection.addColumn(new SimpleColumn("hireDate"));
    selection.addColumn(new SimpleColumn("age"));
    q.setSelection(selection);


    // Add sort.
    QuerySort sort = new QuerySort();
    sort.addSort(new ScalarFunctionColumn(

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Examples of com.google.visualization.datasource.query.QuerySelection


    // select day(hireDate) + age * hour(seniorityStartTime), age
    Query q = new Query();


    // Add selection.
    QuerySelection selection = new QuerySelection();
    AbstractColumn col1  = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(new SimpleColumn("hireDate")),
        TimeComponentExtractor.getInstance(
            TimeComponentExtractor.TimeComponent.DAY));
    AbstractColumn col2 = new SimpleColumn("age");
    AbstractColumn col3  = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(
            new SimpleColumn("seniorityStartTime")),
        TimeComponentExtractor.getInstance(
            TimeComponentExtractor.TimeComponent.HOUR));
    AbstractColumn col4 = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(col2, col3), Product.getInstance());
    AbstractColumn col5 = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(col1, col4), Sum.getInstance());
    selection.addColumn(col5);
    selection.addColumn(new SimpleColumn("age"));
    q.setSelection(selection);
    q.validate();


    DataTable result = QueryEngine.executeQuery(q, res, ULocale.US);

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Examples of com.google.visualization.datasource.query.QuerySelection

    AbstractColumn col3 = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(col1, col2),
        Difference.getInstance());


    // Add selection
    QuerySelection selection = new QuerySelection();
    selection.addColumn(new AggregationColumn(new SimpleColumn("age"),
        AggregationType.SUM));
    selection.addColumn(col3);
    q.setSelection(selection);


    // Add group
    QueryGroup group = new QueryGroup();
    group.addColumn(col3);

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Examples of com.google.visualization.datasource.query.QuerySelection

    AbstractColumn col3 = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(col1, col2),
        Difference.getInstance());


    // Add selection
    QuerySelection selection = new QuerySelection();
    selection.addColumn(col1);
    selection.addColumn(col2);
    q.setSelection(selection);


    // Add Filter
    QueryFilter filter = new ColumnValueFilter(col3, new NumberValue(-5),
        ComparisonFilter.Operator.GT);

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Examples of com.google.visualization.datasource.query.QuerySelection

    AbstractColumn col2 = new ScalarFunctionColumn(
        Lists.<AbstractColumn>newArrayList(new SimpleColumn("weight"), col1),
        Modulo.getInstance());


    // Add selection
    QuerySelection selection = new QuerySelection();
    selection.addColumn(new SimpleColumn("weight"));
    selection.addColumn(col2);
    q.setSelection(selection);
    
    q.validate();


    DataTable result = QueryEngine.executeQuery(q, res, ULocale.US);

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Examples of com.google.visualization.datasource.query.QuerySelection

    // Create a query with filter clause using module:
    // select name, weight where weight%2=0.0
    Query q = new Query();


    // Add selection
    QuerySelection selection = new QuerySelection();
    selection.addColumn(new SimpleColumn("name"));
    selection.addColumn(new SimpleColumn("weight"));
    q.setSelection(selection);


    AbstractColumn col1 = new ScalarFunctionColumn(
      Lists.<AbstractColumn>newArrayList(), new Constant(new NumberValue(2)));
    AbstractColumn col2 = new ScalarFunctionColumn(

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Examples of com.google.visualization.datasource.query.QuerySelection

  public void testLabels() throws Exception {
    Query query = new Query();


    DataTable data = MockDataSource.getData(0);


    QuerySelection selection = new QuerySelection();
    selection.addColumn(new SimpleColumn("name"));
    selection.addColumn(new SimpleColumn("isAlive"));
    query.setSelection(selection);


    QueryLabels labels = new QueryLabels();
    labels.addLabel(new SimpleColumn("isAlive"),
        "New isAlive Label");

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Examples of com.google.visualization.datasource.query.QuerySelection

    assertEquals("New isAlive Label", res.getColumnDescription("isAlive").getLabel());
  }


  public void testFormatAndLabelOnPivotColumns() throws Exception {
    Query query = new Query();
    QuerySelection selection = new QuerySelection(); // SELECT (sum(sales) / 7)
    List<AbstractColumn> columns = Lists.newArrayList();
    columns.add(new AggregationColumn(new SimpleColumn("Sales"), AggregationType.SUM));
    columns.add(new ScalarFunctionColumn(Lists.<AbstractColumn>newArrayList(),
        new Constant(new NumberValue(7))));
    AbstractColumn selectedColumn = new ScalarFunctionColumn(columns, Quotient.getInstance());
    selection.addColumn(selectedColumn);


    query.setSelection(selection);
    QueryGroup group = new QueryGroup();
    group.addColumn(new SimpleColumn("Year"));
    query.setGroup(group);

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Examples of com.google.visualization.datasource.query.QuerySelection

  /**
   * Test selection of no cols (should be as select all).
   */
  public void testSelectWithNoCols() throws Exception {
    Query q = new Query();
    QuerySelection sel = new QuerySelection();
    q.setSelection(sel);
    DataTable res = QueryEngine.executeQuery(q, input, ULocale.US);
    List<ColumnDescription> cols = res.getColumnDescriptions();


    assertEquals(3, cols.size());

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