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com.vaadin.client.renderers.

Class NumberRenderer

  • All Implemented Interfaces:

    Renderer<Number>

    public class NumberRenderer
extends Object
implements Renderer<Number>

    Renders a number into a cell using a specific NumberFormat. By default uses the default number format returned by NumberFormat.getDecimalFormat().

    Since:

    7.4

    Author:

    Vaadin Ltd

    • Constructor Detail

      • NumberRenderer

        public NumberRenderer()

        Constructs a renderer for presenting number data.

      • NumberRenderer

        public NumberRenderer​(com.google.gwt.i18n.client.NumberFormat format)

        Constructs a renderer for presenting number data.

        Parameters:

        format - the format to use when the number is displayed

    • Method Detail

      • getFormat

        public com.google.gwt.i18n.client.NumberFormat getFormat()

        Gets the number format that the number should be formatted in.

        Returns:

        the number format used to render the number

      • setFormat

        public void setFormat​(com.google.gwt.i18n.client.NumberFormat format)
               throws IllegalArgumentException

        Sets the number format to use for formatting the number.

        Parameters:

        format - the format to use

        Throws:

        IllegalArgumentException - when the format is null

      • render

        public void render​(RendererCellReference cell,
                   Number number)

        Description copied from interface: Renderer

        Called whenever the Grid updates a cell.

        For optimal performance, work done in this method should be kept to a minimum since it will be called continuously while the user is scrolling. It is recommended to set up the cell's DOM structure in ComplexRenderer.init(RendererCellReference) and only make incremental updates based on cell data in this method.

        Specified by:

        render in interface Renderer<Number>

        Parameters:

        cell - The cell. Note that the cell is a flyweight and should not be stored outside of the method as it will change.

        number - The column data object