eu.bandm.tools.tdom.runtime

Class EncodingOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

eu.bandm.tools.tdom.runtime.EncodingOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class EncodingOutputStream
extends FilterOutputStream

DOCME CHECK: Uses direct and inherited aggregation in parallel ? (=inherited and overwritten methods?)

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
EncodingOutputStream(OutputStream out)

Method Summary

Modifier and Type	Method and Description
void	writeInt(int min, int n) Write out "n" for a value which is always geq "min", but no upper limit is known.
void	writeInt(int n, int min, int max) Write out "n" for a value always geq "min" and leq "max".
void	writeString(String string) Write out a character sequence.

Methods inherited from class java.io.FilterOutputStream

close, flush, write, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

EncodingOutputStream

public EncodingOutputStream(OutputStream out)

Method Detail

writeInt

public void writeInt(int min,
                     int n)
              throws IOException

Write out "n" for a value which is always geq "min", but no upper limit is known. Use a Fibonacci encoding = Zeckendorf representation: Each strictly positive integer is represented as a sum of Fibonacci numbers. Anywhere a sequence of digits "..011.." is canonically represented as "..100..", so never two adjacent one bits "11" do appear. The bits are written lowest to highest. The highest is always "1" and an additional stop bit "1" follows. E.g.

        1    2    5    8    13    stopbit
  15 =  0    1    0    0    1     1 
  

Throws:

IOException

writeInt

public void writeInt(int n,
                     int min,
                     int max)
              throws IOException

Write out "n" for a value always geq "min" and leq "max". Writes out the relative position of "n" in this range. Writes out as many bits as necessary for this maximal position. Writes out epsilon (=the empty bitstring) iff only one value is possible ("min==max").

Throws:

IOException

writeString

public void writeString(String string)
                 throws IOException

Write out a character sequence. Write either only the index number into the constant pool, or define a new entry in this pool. The resp bit encodings are.:

      0 
      1  
  

Throws:

IOException