Package nz.org.riskscape.engine.output

Class ShapeFileNullMapper

java.lang.Object
nz.org.riskscape.engine.output.ShapeFileNullMapper
public class ShapeFileNullMapper extends Object

The Shapefile format does not support null values. Some shapefile readers such as ogr appear to handle nulls. ESRI software maps a null value to placeholder values on writing.

  • Field Details

    • NULL_VALUE_TEXT

      public static final String NULL_VALUE_TEXT
      See Also:

    • NULL_VALUE_NUMBER

      public static final Number NULL_VALUE_NUMBER

    • NULL_VALUE_BOOLEAN

      public static final Boolean NULL_VALUE_BOOLEAN

    • NULL_VALUE_DATE

      public static final Date NULL_VALUE_DATE

    • NULL_VALUE_GEOMETRY

      public static final org.locationtech.jts.geom.Geometry NULL_VALUE_GEOMETRY

  • Constructor Details

    • ShapeFileNullMapper

      public ShapeFileNullMapper()

  • Method Details

    • mapValueIfNecessary

      public Object mapValueIfNecessary(Object value, nz.org.riskscape.engine.types.Type type)

      Returns the value, or a mapped value should it be null. The mapped value is safe to be used in shapefiles instead of the actual null value.

      Parameters:
      value - to map
      type - the Type that value should be
      Returns:
      value or a mapped value if it is null and a mapping is known