Class wb.ByteUnPackInputStream 
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Class wb.ByteUnPackInputStream 

java.lang.Object
   |
   +----wb.ByteUnPackInputStream
public class ByteUnPackInputStream
extends Object
This class lets you read primitive Java data types from a local byte array after the data is read in one single block in a portable way. Primitive data types are well understood types with associated operations. For example, an Integer is considered to be a good primitive data type. The byte data can be generated using a BytePackOutputStream.

Variable Index

o buf
The buffer where data is stored.
o count
The number of bytes in the buffer.
o instream
The real stream from which the byte array will be filled with data

Constructor Index

o ByteUnPackInputStream(InputStream)
Creates a new ByteUnPackInputStream.

Method Index

o fill()
Fills the byte buffer by reading data from the stream.
o fill(int)
Fills the byte buffer by reading data from the stream.
o readBoolean()
Read a boolean.
o readByte()
Reads an 8 bit byte.
o readChar()
Reads a 16 bit char.
o readChars(String)
Reads a String
o readDouble()
Reads a 64 bit double.
o readFloat()
Reads a 32 bit float.
o readInt()
Reads a 32 bit int.
o readLong()
Reads a 64 bit long.
o readShort()
Reads a 16 bit short.
o size()
Returns the current size of the unread local buffer read from the stream when fill'd

Variables

o buf 
  protected byte buf[]
The buffer where data is stored.
o count 
  protected int count
The number of bytes in the buffer.
o instream 
  protected InputStream instream
The real stream from which the byte array will be filled with data

Constructors

o ByteUnPackInputStream 
  public ByteUnPackInputStream(InputStream in)
Creates a new ByteUnPackInputStream.
Parameters:
in - the output stream

Methods

o fill 
  public synchronized int fill() throws IOException
Fills the byte buffer by reading data from the stream.
Returns:
the actual number of bytes read, -1 is returned when the end of stream is reached
Throws: IOException
If an I/O error has occurred
o fill 
  public synchronized int fill(int num) throws IOException
Fills the byte buffer by reading data from the stream.
Parameters:
num - the number of bytes to be read
Returns:
the actual number of bytes read, -1 is returned when the end of stream is reached
Throws: IOException
If an I/O error has occurred
Throws: EOFException
If EOF is reached before all "num" bytes are read
o readBoolean 
  public synchronized boolean readBoolean() throws IOException
Read a boolean.
Returns:
s the boolean read from the localbuffer
Throws: IOException
If there is insufficient data in the localbuffer
o readByte 
  public synchronized byte readByte() throws IOException
Reads an 8 bit byte.
Returns:
s the byte value read
Throws: IOException
If there is insufficient data in the localbuffer
o readShort 
  public synchronized short readShort() throws IOException
Reads a 16 bit short.
Returns:
s the 16 bit short read
Throws: IOException
If there is insufficient data in the localbuffer
o readChar 
  public synchronized char readChar() throws IOException
Reads a 16 bit char.
Returns:
s the char read
Throws: IOException
If there is insufficient data in the localbuffer
o readInt 
  public synchronized int readInt() throws IOException
Reads a 32 bit int.
Returns:
s the 32 bit int read
Throws: IOException
If there is insufficient data in the localbuffer
o readLong 
  public synchronized long readLong() throws IOException
Reads a 64 bit long.
Returns:
s the 64 bit long read
Throws: IOException
If there is insufficient data in the localbuffer
o readFloat 
  public synchronized float readFloat() throws IOException
Reads a 32 bit float.
Returns:
s the 32 bit float read
Throws: IOException
If there is insufficient data in the localbuffer
o readDouble 
  public synchronized double readDouble() throws IOException
Reads a 64 bit double.
Returns:
s the 64 bit double read
Throws: IOException
If there is insufficient data in the localbuffer
o readChars 
  public synchronized String readChars(String s) throws IOException
Reads a String
Returns:
s a read String that has been terminated by a \n, \r, \r\n or EOF if unterminated it returns all the available.
Throws: IOException
If there is insufficient data in the localbuffer
o size 
  public int size()
Returns the current size of the unread local buffer read from the stream when fill'd
Returns:
s the size 
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