Package org.jpos.iso

Class BinaryPrefixer

  • All Implemented Interfaces:
    Prefixer
    public class BinaryPrefixer
extends java.lang.Object
implements Prefixer
    BinaryPrefixer constructs a prefix storing the length in binary.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static BinaryPrefixer B
      A length prefixer for up to 255 chars.
      static BinaryPrefixer BB
      A length prefixer for up to 65535 chars.

    • Constructor Summary

      Constructors 
      Constructor Description
      BinaryPrefixer​(int nBytes)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int decodeLength​(byte[] b, int offset)
      Decodes an encoded length.
      void encodeLength​(int length, byte[] b)
      Fills a byte array with the field length data in raw form.
      int getPackedLength()
      Returns the number of bytes taken up by the length encoding.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • B

        public static final BinaryPrefixer B
        A length prefixer for up to 255 chars. The length is encoded with 1 unsigned byte.

      • BB

        public static final BinaryPrefixer BB
        A length prefixer for up to 65535 chars. The length is encoded with 2 unsigned bytes.

    • Method Detail

      • encodeLength

        public void encodeLength​(int length,
                         byte[] b)
        Description copied from interface: Prefixer
        Fills a byte array with the field length data in raw form.
        Specified by:
        encodeLength in interface Prefixer
        Parameters:
        length - The length to be encoded.
        b - The byte array to fill with the encoded length.

      • decodeLength

        public int decodeLength​(byte[] b,
                        int offset)
        Description copied from interface: Prefixer
        Decodes an encoded length.
        Specified by:
        decodeLength in interface Prefixer
        Parameters:
        b - The byte array to scan for the length.
        offset - The offset to start scanning from.
        Returns:
        The length in chars of the field data to follow this LengthPrefix.