org.apache.cassandra.utils.vint
Class EncodedDataOutputStream

java.lang.Object
  java.io.OutputStream
      org.apache.cassandra.io.util.AbstractDataOutput
          org.apache.cassandra.utils.vint.EncodedDataOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataOutput, java.io.Flushable

public class EncodedDataOutputStream
extends AbstractDataOutput

Borrows idea from https://developers.google.com/protocol-buffers/docs/encoding#varints

Constructor Summary

EncodedDataOutputStream(java.io.OutputStream out)

Method Summary

void	write(byte[] b) Writes the entire contents of the byte array buffer to this RandomAccessFile starting at the current file pointer.
void	write(byte[] b, int off, int len) Writes count bytes from the byte array buffer starting at offset to this RandomAccessFile starting at the current file pointer..
void	write(int b) Writes the specified byte oneByte to this RandomAccessFile starting at the current file pointer.
void	writeInt(int v) Writes a 32-bit int to this output stream.
void	writeLong(long v) Writes a 64-bit long to this output stream.
void	writeShort(int v) Writes the specified 16-bit short to the OutputStream.

Methods inherited from class org.apache.cassandra.io.util.AbstractDataOutput

writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeUTF

Methods inherited from class java.io.OutputStream

close, flush

Methods inherited from class java.lang.Object

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

Constructor Detail

EncodedDataOutputStream

public EncodedDataOutputStream(java.io.OutputStream out)

Method Detail

write

public void write(int b)
           throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes the specified byte oneByte to this RandomAccessFile starting at the current file pointer. Only the low order byte of oneByte is written.

Specified by:

write in interface java.io.DataOutput

Specified by:

write in class AbstractDataOutput

Parameters:

b - the byte to be written

Throws:

java.io.IOException - If an error occurs attempting to write to this RandomAccessFile.

write

public void write(byte[] b)
           throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes the entire contents of the byte array buffer to this RandomAccessFile starting at the current file pointer.

Specified by:

write in interface java.io.DataOutput

Overrides:

write in class AbstractDataOutput

Parameters:

b - the buffer to be written.

Throws:

java.io.IOException - If an error occurs trying to write to this RandomAccessFile.

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes count bytes from the byte array buffer starting at offset to this RandomAccessFile starting at the current file pointer..

Specified by:

write in interface java.io.DataOutput

Specified by:

write in class AbstractDataOutput

Parameters:

b - the bytes to be written

off - offset in buffer to get bytes

len - number of bytes in buffer to write

Throws:

java.io.IOException - If an error occurs attempting to write to this RandomAccessFile.

writeInt

public void writeInt(int v)
              throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes a 32-bit int to this output stream. The resulting output is the 4 bytes, highest order first, of val.

Specified by:

writeInt in interface java.io.DataOutput

Overrides:

writeInt in class AbstractDataOutput

Parameters:

v - the int to be written.

Throws:

java.io.IOException - If an error occurs attempting to write to this DataOutputStream.

writeLong

public void writeLong(long v)
               throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes a 64-bit long to this output stream. The resulting output is the 8 bytes, highest order first, of val.

Specified by:

writeLong in interface java.io.DataOutput

Overrides:

writeLong in class AbstractDataOutput

Parameters:

v - the long to be written.

Throws:

java.io.IOException - If an error occurs attempting to write to this DataOutputStream.

writeShort

public void writeShort(int v)
                throws java.io.IOException

Description copied from class: AbstractDataOutput

Writes the specified 16-bit short to the OutputStream. Only the lower 2 bytes are written with the higher of the 2 bytes written first.

Specified by:

writeShort in interface java.io.DataOutput

Overrides:

writeShort in class AbstractDataOutput

Parameters:

v - the short to be written

Throws:

java.io.IOException - If an error occurs attempting to write to this DataOutputStream.