Package org.h2.util.geometry

Class EWKTUtils

  • public final class EWKTUtils
extends java.lang.Object
    EWKT format support for GEOMETRY data type.

    This class provides limited support of EWKT. EWKT is based on Well-known Text Representation (WKT) from OGC 06-103r4 and includes additional PostGIS extensions. SRID support from EWKT is implemented.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  EWKTUtils.EWKTTarget
      Converter output target that writes a EWKT.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String ewkb2ewkt​(byte[] ewkb)
      Converts EWKB to EWKT.
      static java.lang.String ewkb2ewkt​(byte[] ewkb, int dimensionSystem)
      Converts EWKB to EWKT.
      static byte[] ewkt2ewkb​(java.lang.String ewkt)
      Converts EWKT to EWKB.
      static byte[] ewkt2ewkb​(java.lang.String ewkt, int dimensionSystem)
      Converts EWKT to EWKB.
      static java.lang.StringBuilder formatGeometryTypeAndDimensionSystem​(java.lang.StringBuilder builder, int type)
      Formats type and dimension system as a string.
      static int getDimensionSystem​(java.lang.String ewkt)
      Reads the dimension system from EWKT.
      static int parseDimensionSystem​(java.lang.String s)
      Parses a dimension system from the given string.
      static void parseEWKT​(java.lang.String ewkt, GeometryUtils.Target target)
      Parses a EWKT.
      static int parseGeometryType​(java.lang.String s)
      Parses geometry type and dimension system from the given string.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • ewkb2ewkt

        public static java.lang.String ewkb2ewkt​(byte[] ewkb)
        Converts EWKB to EWKT.
        Parameters:
        ewkb - source EWKB
        Returns:
        EWKT representation

      • ewkb2ewkt

        public static java.lang.String ewkb2ewkt​(byte[] ewkb,
                                         int dimensionSystem)
        Converts EWKB to EWKT.
        Parameters:
        ewkb - source EWKB
        dimensionSystem - dimension system
        Returns:
        EWKT representation

      • ewkt2ewkb

        public static byte[] ewkt2ewkb​(java.lang.String ewkt)
        Converts EWKT to EWKB.
        Parameters:
        ewkt - source EWKT
        Returns:
        EWKB representation

      • ewkt2ewkb

        public static byte[] ewkt2ewkb​(java.lang.String ewkt,
                               int dimensionSystem)
        Converts EWKT to EWKB.
        Parameters:
        ewkt - source EWKT
        dimensionSystem - dimension system
        Returns:
        EWKB representation

      • parseEWKT

        public static void parseEWKT​(java.lang.String ewkt,
                             GeometryUtils.Target target)
        Parses a EWKT.
        Parameters:
        ewkt - source EWKT
        target - output target

      • parseGeometryType

        public static int parseGeometryType​(java.lang.String s)
        Parses geometry type and dimension system from the given string.
        Parameters:
        s - string to parse
        Returns:
        geometry type and dimension system in OGC geometry code format (type + dimensionSystem * 1000)
        Throws:
        java.lang.IllegalArgumentException - if input is not valid

      • formatGeometryTypeAndDimensionSystem

        public static java.lang.StringBuilder formatGeometryTypeAndDimensionSystem​(java.lang.StringBuilder builder,
                                                                           int type)
        Formats type and dimension system as a string.
        Parameters:
        builder - string builder
        type - OGC geometry code format (type + dimensionSystem * 1000)
        Returns:
        the specified string builder
        Throws:
        java.lang.IllegalArgumentException - if type is not valid

      • getDimensionSystem

        public static int getDimensionSystem​(java.lang.String ewkt)
        Reads the dimension system from EWKT.
        Parameters:
        ewkt - EWKT source
        Returns:
        the dimension system