Class SignedBinary

java.lang.Object
org.apache.derby.impl.drda.SignedBinary
class SignedBinary extends Object
Converters from signed binary bytes to Java short, int, or long.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    BIG_ENDIAN
    AS/400, Unix, System/390 byte-order for signed binary representations.
    static final int
    LITTLE_ENDIAN
    Intel 80/86 reversed byte-order for signed binary representations.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
    SignedBinary()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static int
    bigEndianBytesToInt(byte[] buffer, int offset)
    Build a Java int from a 4-byte big endian signed binary representation.
    static long
    bigEndianBytesToLong(byte[] buffer, int offset)
    Build a Java long from an 8-byte big endian signed binary representation.
    static short
    bigEndianBytesToShort(byte[] buffer, int offset)
    Build a Java short from a 2-byte big endian signed binary representation.
    static int
    getInt(byte[] buffer, int offset, int byteOrder)
    Build a Java int from a 4-byte signed binary representation.
    static long
    getLong(byte[] buffer, int offset, int byteOrder)
    Build a Java long from an 8-byte signed binary representation.
    static short
    getShort(byte[] buffer, int offset, int byteOrder)
    Build a Java short from a 2-byte signed binary representation.
    static int
    littleEndianBytesToInt(byte[] buffer, int offset)
    Build a Java int from a 4-byte little endian signed binary representation.
    static long
    littleEndianBytesToLong(byte[] buffer, int offset)
    Build a Java long from an 8-byte little endian signed binary representation.
    static short
    littleEndianBytesToShort(byte[] buffer, int offset)
    Build a Java short from a 2-byte little endian signed binary representation.

    Methods inherited from class Object

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

  • Field Details

    • BIG_ENDIAN

      public static final int BIG_ENDIAN
      AS/400, Unix, System/390 byte-order for signed binary representations.
      See Also:

    • LITTLE_ENDIAN

      public static final int LITTLE_ENDIAN
      Intel 80/86 reversed byte-order for signed binary representations.
      See Also:

  • Constructor Details

    • SignedBinary

      private SignedBinary()

  • Method Details

    • getShort

      public static short getShort(byte[] buffer, int offset, int byteOrder)
      Build a Java short from a 2-byte signed binary representation.

      Depending on machine type, byte orders are BIG_ENDIAN for signed binary integers, and LITTLE_ENDIAN for pc8087 signed binary integers.

      Throws:
      IllegalArgumentException - if the specified byte order is not recognized.

    • getInt

      public static int getInt(byte[] buffer, int offset, int byteOrder)
      Build a Java int from a 4-byte signed binary representation.

      Depending on machine type, byte orders are BIG_ENDIAN for signed binary integers, and LITTLE_ENDIAN for pc8087 signed binary integers.

      Throws:
      IllegalArgumentException - if the specified byte order is not recognized.

    • getLong

      public static long getLong(byte[] buffer, int offset, int byteOrder)
      Build a Java long from an 8-byte signed binary representation.

      Depending on machine type, byte orders are BIG_ENDIAN for signed binary integers, and LITTLE_ENDIAN for pc8087 signed binary integers.

      Throws:
      IllegalArgumentException - if the specified byte order is not recognized.

    • bigEndianBytesToShort

      public static short bigEndianBytesToShort(byte[] buffer, int offset)
      Build a Java short from a 2-byte big endian signed binary representation.

    • littleEndianBytesToShort

      public static short littleEndianBytesToShort(byte[] buffer, int offset)
      Build a Java short from a 2-byte little endian signed binary representation.

    • bigEndianBytesToInt

      public static int bigEndianBytesToInt(byte[] buffer, int offset)
      Build a Java int from a 4-byte big endian signed binary representation.

    • littleEndianBytesToInt

      public static int littleEndianBytesToInt(byte[] buffer, int offset)
      Build a Java int from a 4-byte little endian signed binary representation.

    • bigEndianBytesToLong

      public static long bigEndianBytesToLong(byte[] buffer, int offset)
      Build a Java long from an 8-byte big endian signed binary representation.

    • littleEndianBytesToLong

      public static long littleEndianBytesToLong(byte[] buffer, int offset)
      Build a Java long from an 8-byte little endian signed binary representation.