Package net.postgis.jdbc.geometry.binary

Class BinaryParser

java.lang.Object
net.postgis.jdbc.geometry.binary.BinaryParser
public class BinaryParser extends Object
Parse binary representation of geometries. It should be easy to add char[] and CharSequence ByteGetter instances, although the latter one is not compatible with older jdks. I did not implement real unsigned 32-bit integers or emulate them with long, as both java Arrays and Strings currently can have only 2^31-1 elements (bytes), so we cannot even get or build Geometries with more than approx. 2^28 coordinates (8 bytes each).
Author:
Markus Schaber <[email protected]>

  • Constructor Details

    • BinaryParser

      public BinaryParser()

  • Method Details

    • valueGetterForEndian

      public static ValueGetter valueGetterForEndian(ByteGetter bytes)
      Get the appropriate ValueGetter for my endianness
      Parameters:
      bytes - The appropriate Byte Getter
      Returns:
      the ValueGetter

    • parse

      public Geometry parse(String value)
      Parse a hex encoded geometry Is synchronized to protect offset counter. (Unfortunately, Java does not have neither call by reference nor multiple return values.)
      Parameters:
      value - String containing the data to be parsed
      Returns:
      resulting geometry for the parsed data

    • parse

      public Geometry parse(byte[] value)
      Parse a binary encoded geometry. Is synchronized to protect offset counter. (Unfortunately, Java does not have neither call by reference nor multiple return values.)
      Parameters:
      value - byte array containing the data to be parsed
      Returns:
      resulting geometry for the parsed data

    • parseGeometry

      protected Geometry parseGeometry(ValueGetter data)
      Parse a geometry starting at offset.
      Parameters:
      data - ValueGetter with the data to be parsed
      Returns:
      the parsed geometry