Package io.permazen.encoding

Class IntegralEncoding<T extends Number>

java.lang.Object
io.permazen.encoding.AbstractEncoding<T>
io.permazen.encoding.PrimitiveEncoding<T>
io.permazen.encoding.NumberEncoding<T>
io.permazen.encoding.IntegralEncoding<T>
All Implemented Interfaces:
Encoding<T>, NaturalSortAware, Serializable, Comparator<T>
Direct Known Subclasses:
ByteEncoding, IntegerEncoding, LongEncoding, ShortEncoding
public abstract class IntegralEncoding<T extends Number> extends NumberEncoding<T>
Support superclass for the integral types encoded via LongEncoder.
See Also:

  • Constructor Details

  • Method Details

    • read

      public T read(ByteReader reader)
      Description copied from interface: Encoding
      Read a value from the given input.
      Parameters:
      reader - byte input
      Returns:
      field value (possibly null)

    • write

      public void write(ByteWriter writer, T value)
      Description copied from interface: Encoding
      Write a value to the given output.
      Parameters:
      writer - byte output
      value - value to write (possibly null)

    • skip

      public void skip(ByteReader reader)
      Description copied from interface: Encoding
      Read and discard a byte[] encoded value from the given input.
      Parameters:
      reader - byte input

    • hasPrefix0x00

      public boolean hasPrefix0x00()
      Description copied from interface: Encoding
      Determine whether any of this encoding's encoded values start with a 0x00 byte. Certain optimizations are possible when this is not the case. It is safe for this method to always return true.

      Note: changing the result of this method may result in an incompatible encoding if this encoding is wrapped in another class.

      The implementation in Encoding returns true.

      Returns:
      true if an encoded value starting with 0x00 exists

    • hasPrefix0xff

      public boolean hasPrefix0xff()
      Description copied from interface: Encoding
      Determine whether any of this encoding's encoded values start with a 0xff byte. Certain optimizations are possible when this is not the case. It is safe for this method to always return true.

      Note: changing the result of this method may result in an incompatible encoding if this encoding is wrapped in another class.

      The implementation in Encoding returns true.

      Returns:
      true if an encoded value starting with 0xff exists

    • downCast

      protected abstract T downCast(long value)

    • upCast

      protected long upCast(T value)