Package org.geotools.api.style

Interface TraversingStyleVisitor

public interface TraversingStyleVisitor
An interface for classes that want to perform operations on a Style hierarchy. It forms part of a GoF Visitor Pattern implementation.

A call to style.accept(StyleVisitor) will result in a call to one of the methods in this interface. The responsibility for traversing sub filters is intended to lie with the visitor (this is unusual, but permitted under the Visitor pattern).

A typical use would be to transcribe a style into a specific format, e.g. XML or SQL. Alternatively it may be to extract specific information from the Style structure, for example a list of all fills. Finally a a style visitor is often used (in conjunction with a factory) in the production of a copy; or slightly modified copy of the original style.

It is common practice for a StyleVisitor to also implement an ExpressionVisitor in order to traverse both data structures.

Since:
GeoAPI 2.2
Author:
Open Geospatial Consortium, James Macgill, Ian Turton, Johann Sorel (Geomatys)
See Also:

  • Method Details

    • visit

      Object visit(Style style, Object data)
      Called when accept is called on a Style.
      Parameters:
      style - The style to visit

    • visit

      Object visit(FeatureTypeStyle featureTypeStyle, Object data)
      Called when accept is called on a FetaureTypeStyle
      Parameters:
      featureTypeStyle - the feature type styler to visit

    • visit

      Object visit(Rule rule, Object data)
      Called when accept is called on a rule
      Parameters:
      rule - the rule to visit

    • visit

      Object visit(PointSymbolizer pointSymbolizer, Object data)
      Called when accept is called on a pointsymbolizer
      Parameters:
      pointSymbolizer - the point symbolizer to visit

    • visit

      Object visit(LineSymbolizer lineSymbolizer, Object data)
      Called when accept is called on a linesymbolizer
      Parameters:
      lineSymbolizer - the line symbolizer to visit

    • visit

      Object visit(PolygonSymbolizer polygonSymbolizer, Object data)
      Called when accept is called on a polygon symbolizer
      Parameters:
      polygonSymbolizer - the polygon symbolizer to visit

    • visit

      Object visit(TextSymbolizer textSymbolizer, Object data)
      Called when accept is called on a textsymbolizer
      Parameters:
      textSymbolizer - the text symbolizer to visit

    • visit

      Object visit(RasterSymbolizer rasterSymbolizer, Object data)
      Called when accept is called on a rastersymbolizer
      Parameters:
      rasterSymbolizer - the raster symbolizer to visit

    • visit

      Object visit(ExtensionSymbolizer extension, Object data)
      Called when accept is called on a extension symbolizer
      Parameters:
      extension - the extension symbolizer to visit

    • visit

      Object visit(Description description, Object data)
      Called when accept is called on a description
      Parameters:
      description - the description to visit

    • visit

      Object visit(Displacement displacement, Object data)
      Called when accept is called on a displacement
      Parameters:
      displacement - the displacement to visit

    • visit

      Object visit(Fill fill, Object data)
      Called when accept is called on a fill
      Parameters:
      fill - the fill to be visited

    • visit

      Object visit(Font font, Object data)
      Called when accept is called on a font
      Parameters:
      font - the font to be visited

    • visit

      Object visit(Stroke stroke, Object data)
      Called when accept is called on a stroke
      Parameters:
      stroke - the stroke to visit

    • visit

      Object visit(Graphic graphic, Object data)
      Called when accept is called on a graphic
      Parameters:
      graphic - the graphic to visit

    • visit

      Object visit(GraphicFill graphicFill, Object data)
      Called when accept is called on a graphic fill
      Parameters:
      graphicFill - the graphic fill to visit

    • visit

      Object visit(GraphicStroke graphicStroke, Object data)
      Called when accept is called on a graphic stroke
      Parameters:
      graphicStroke - the graphic stroke to visit

    • visit

      Object visit(Mark mark, Object data)
      Called when accept is called on a mark
      Parameters:
      mark - the mark to visit

    • visit

      Object visit(ExternalMark externalMark, Object data)
      Called when accept is called on a external mark
      Parameters:
      externalMark - the external mark to visit

    • visit

      Object visit(ExternalGraphic externalGraphic, Object data)
      Called when accept is called on a external graphic
      Parameters:
      externalGraphic - the external graphic to visit

    • visit

      Object visit(PointPlacement pointPlacement, Object data)
      Called when accept is called on a Point Placement
      Parameters:
      pointPlacement - the point placement to visit

    • visit

      Object visit(AnchorPoint anchorPoint, Object data)
      Called when accept is called on a anchor point
      Parameters:
      anchorPoint - the anchor point to visit

    • visit

      Object visit(LinePlacement linePlacement, Object data)
      Called when accept is called on a Line Placement
      Parameters:
      linePlacement - the line placement to visit

    • visit

      Object visit(GraphicLegend graphicLegend, Object data)
      Called when accept is called on a legend graphic
      Parameters:
      graphicLegend - the legend graphic to visit

    • visit

      Object visit(Halo halo, Object data)
      Called when accept is called on a halo
      Parameters:
      halo - the halo to visit

    • visit

      Object visit(ColorMap colorMap, Object data)
      Called when accept is called on a raster color map
      Parameters:
      colorMap - the color map to visit

    • visit

      Object visit(ColorReplacement colorReplacement, Object data)
      Called when accept is called on a color replacement
      Parameters:
      colorReplacement - the color replacement to visit

    • visit

      Object visit(ContrastEnhancement contrastEnhancement, Object data)
      Called when accept is called on a raster ContrastEnhancement element
      Parameters:
      contrastEnhancement - the ContrastEnhancement to visit.

    • visit

      Object visit(ChannelSelection channelSelection, Object data)
      Called when accept is called on a raster ChannelSelection element
      Parameters:
      channelSelection - the ChannelSelection to visit.

    • visit

      Object visit(SelectedChannelType selectChannelType, Object data)
      Called when accept is called on a raster SelectedChannelType element
      Parameters:
      selectChannelType - the SelectedChannelType to visit.

    • visit

      Object visit(ShadedRelief shadedRelief, Object data)
      Called when accept is called on a raster ShadedRelief element
      Parameters:
      shadedRelief - the ShadedRelief to visit.

    • visit

      void visit(ContrastMethod method, Object data)
      Called when accept is called on a raster ContrastMethod element
      Parameters:
      method - the ContrastMethod to visit