All Known Implementing Classes:

ByteBlockDevice, FileBlockDeviceDriver, Partition, ScsiBlockDevice
```
public interface BlockDeviceDriver
```
This interface describes a simple block device with a certain block size and the ability to read and write at a certain device offset.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getBlockSize()`	Returns the block size of the block device.
`void`	`init()`	Initializes the block device for further use.
`void`	`read(long deviceOffset, java.nio.ByteBuffer buffer)`	Reads from the block device at a certain offset into the given buffer.
`void`	`write(long deviceOffset, java.nio.ByteBuffer buffer)`	Writes to the block device at a certain offset from the given buffer.

- Method Detail
  - init
```
void init()
   throws java.io.IOException
```
    Initializes the block device for further use. This method should be called before doing anything else on the block device.
    
    Throws:
    
    java.io.IOException - If initializing fails
  - read
```
void read(long deviceOffset,
          java.nio.ByteBuffer buffer)
   throws java.io.IOException
```
    Reads from the block device at a certain offset into the given buffer. The amount of bytes to be read are determined by Buffer.remaining().
    The deviceOffset can either be the amount of bytes or a logical block addressing using the block size. To get the bytes in the last case you have to multiply the lba with the block size (offset * getBlockSize()).
    
    Parameters:
    
    deviceOffset - The offset where the reading should begin.
    
    buffer - The buffer where the data should be read into.
    
    Throws:
    
    java.io.IOException - If reading fails.
  - write
```
void write(long deviceOffset,
           java.nio.ByteBuffer buffer)
    throws java.io.IOException
```
    Writes to the block device at a certain offset from the given buffer. The amount of bytes to be written are determined by Buffer.remaining().
    The deviceOffset can either be the amount of bytes or a logical block addressing using the block size. To get the bytes in the last case you have to multiply the lba with the block size (offset * getBlockSize()).
    
    Parameters:
    
    deviceOffset - The offset where the writing should begin.
    
    buffer - The buffer with the data to be transferred.
    
    Throws:
    
    java.io.IOException - If writing fails.
  - getBlockSize
```
int getBlockSize()
```
    Returns the block size of the block device. Every block device can only read and store bytes in a specific block with a certain size.
    That means that it is only possible to read or write hole blocks!
    
    Returns:
    
    The block size in bytes, mostly 512 bytes.

Interface BlockDeviceDriver

Method Summary

Method Detail

init

read

write

getBlockSize