Examples of org.dashbuilder.dataset.DataColumn

org.dashbuilder.dataset.DataColumn
A data set is a matrix of values composed by a fixed number of columns.

        DataSet dataSet = ctx.getDataSet();


        // Create the comparator.
        DataSetRowComparator comparator = new DataSetRowComparator();
        for (ColumnSort columnSort : columnSortList) {
            DataColumn column = dataSet.getColumnById(columnSort.getColumnId());
            if (column == null) throw new IllegalArgumentException("Column not found in data set: " + columnSort.getColumnId());


            comparator.criteria(column, columnSort.getOrder());
        }
        // Create the row number list to sort.

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        else if (row1 != null && row2 == null) return 1;
        else if (row1 == null) return 0;


        // Compare the two rows.
        for (int i=0; i<columns.size(); i++) {
            DataColumn column = columns.get(i);
            SortOrder order = orders.get(i);
            Comparable value1 = (Comparable) column.getValues().get(row1);
            Comparable value2 = (Comparable) column.getValues().get(row2);
            int comp = ComparatorUtils.compare(value1, value2, order.asInt());
            if (comp != 0) return comp;
        }
        return 0;
    }

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        if (rowCountNonTrimmed == -1) return getRowCount();
        return rowCountNonTrimmed;
    }


    public Object getValueAt(int row, String columnId) {
        DataColumn columnObj = getColumnById(columnId);
        return getValueAt(row, columnObj);
    }

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        DataColumn columnObj = getColumnById(columnId);
        return getValueAt(row, columnObj);
    }


    public Object getValueAt(int row, int column) {
        DataColumn columnObj = getColumnByIndex(column);
        return getValueAt(row, columnObj);
    }

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        }
        return column.getValues().get(row);
    }


    public DataSet setValueAt(int row, int column, Object value) {
        DataColumn columnObj = getColumnByIndex(column);


        List l = columnObj.getValues();
        if (row > l.size()) {
            throw new IllegalArgumentException("The row index " + row + " is out of bounds: " + (l.size()-1));
        }


        if (row == l.size()) l.add(value);

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        }


        DataSetImpl other = cloneEmpty();
        other.rowCountNonTrimmed = getRowCount();
        for (int i=0; i<columns.size(); i++) {
            DataColumn column = columns.get(i);
            DataColumn colOther = other.getColumns().get(i);
            List values = column.getValues();
            List valOther = colOther.getValues();
            for (int j=offset; j<values.size() && j<( offset+rows ); j++) {
                Object value = values.get(j);
                valOther.add(value);
            }
        }

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    }


    public DataSetImpl cloneEmpty() {
        DataSetImpl other = new DataSetImpl();
        for (int i=0; i<columns.size(); i++) {
            DataColumn column = columns.get(i);
            other.addColumn(column.getId(), column.getColumnType());
        }
        return other;
    }

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    }


    public DataSetBuilderImpl row(Object... values) {
        for (int i = 0; i < values.length; i++) {
            Object value = values[i];
            DataColumn column = dataSet.getColumnByIndex(i);
            column.getValues().add(value);
        }
        return this;
    }

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        return pagedTable;
    }


    private void createTableColumnsFromDataSet( PagedTable<Integer> table, List<DataColumn> dataColumns ) {
        for ( int i = 0; i < dataColumns.size(); i++ ) {
            DataColumn dataColumn = dataColumns.get( i );
            String columnId = dataColumn.getId();


            Column<Integer, ?> column = createColumn( dataColumn.getColumnType(), columnId, i );
            if ( column != null ) {
                column.setSortable( true );
                table.addColumn( column, columnId );
            }
        }

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    private void createTableColumnsFromDisplayerSettings( PagedTable<Integer> table, List<DisplayerSettingsColumn> displayerSettingsColumns ) {
        int columnIndex = 0;
        for ( int i = 0; i < displayerSettingsColumns.size(); i++ ) {
            DisplayerSettingsColumn displayerSettingsColumn = displayerSettingsColumns.get( i );
            DataColumn dataColumn;
            if (displayerSettingsColumn.getColumnId() != null) dataColumn = dataSet.getColumnById( displayerSettingsColumn.getColumnId() );
            else dataColumn = dataSet.getColumnByIndex( columnIndex++ );


            if (dataColumn == null) {
                String msg = "Displayer column not found in the data set: " + displayerSettingsColumn.getDisplayName();
                GWT.log( msg );
                throw new RuntimeException( msg );
            }


            String columnId = dataColumn.getId();
            String displayName = displayerSettingsColumn.getDisplayName();
            String caption = null;
            if ( displayName != null && !"".equals( displayName ) ) {
                caption = displayName;
                columnCaptionIds.put( displayName, columnId );
            } else {
                caption = columnId;
            }


            int colIndex = dataSet.getColumnIndex( dataColumn );
            Column<Integer, ?> column = createColumn( dataColumn.getColumnType(), columnId, colIndex );
            if ( column != null ) {
                column.setSortable( true );
                table.addColumn( column, caption );
            }
        }

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