Package com.mckoi.store

Class AbstractStore.StoreArea

java.lang.Object

com.mckoi.store.AbstractStore.StoreArea

All Implemented Interfaces:

Area

Direct Known Subclasses:

AbstractStore.StoreMutableArea

Enclosing class:

AbstractStore

private class AbstractStore.StoreArea
extends java.lang.Object
implements Area

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	buffer
protected static int	BUFFER_SIZE
protected long	end_pointer
protected long	id
protected long	position
protected long	start_pointer

Constructor Summary

Constructors

Constructor	Description
StoreArea(long id, long pointer)
StoreArea(long id, long pointer, long fixed_size)

Method Summary

Modifier and Type	Method	Description
int	capacity()	Returns the capacity of the area.
protected long	checkPositionBounds(int diff)
void	copyTo(AreaWriter destination_writer, int size)	Copies 'size' bytes from the current position of this Area to the destination AreaWriter.
byte	get()
void	get(byte[] buf, int off, int len)
char	getChar()
long	getID()	Returns the unique identifier that represents this area.
int	getInt()
long	getLong()
short	getShort()
int	position()	Returns the current position of the pointer within the area.
void	position(int position)	Sets the position within the area.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

BUFFER_SIZE

protected static final int BUFFER_SIZE

See Also:

Constant Field Values

id

protected final long id

start_pointer

protected final long start_pointer

end_pointer

protected final long end_pointer

position

protected long position

buffer

protected final byte[] buffer

Constructor Detail

StoreArea

public StoreArea(long id,
                 long pointer)
          throws java.io.IOException

Throws:

java.io.IOException

StoreArea

public StoreArea(long id,
                 long pointer,
                 long fixed_size)
          throws java.io.IOException

Throws:

java.io.IOException

Method Detail

checkPositionBounds

protected long checkPositionBounds(int diff)
                            throws java.io.IOException

Throws:

java.io.IOException

getID

public long getID()

Description copied from interface: Area

Returns the unique identifier that represents this area.

Specified by:

getID in interface Area

position

public int position()

Description copied from interface: Area

Returns the current position of the pointer within the area. The position starts at beginning of the area.

Specified by:

position in interface Area

capacity

public int capacity()

Description copied from interface: Area

Returns the capacity of the area.

Specified by:

capacity in interface Area

position

public void position(int position)
              throws java.io.IOException

Description copied from interface: Area

Sets the position within the area.

Specified by:

position in interface Area

Throws:

java.io.IOException

copyTo

public void copyTo(AreaWriter destination_writer,
                   int size)
            throws java.io.IOException

Description copied from interface: Area

Copies 'size' bytes from the current position of this Area to the destination AreaWriter.

Specified by:

copyTo in interface Area

Throws:

java.io.IOException

get

public byte get()
         throws java.io.IOException

Specified by:

get in interface Area

Throws:

java.io.IOException

get

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

Specified by:

get in interface Area

Throws:

java.io.IOException

getShort

public short getShort()
               throws java.io.IOException

Specified by:

getShort in interface Area

Throws:

java.io.IOException

getInt

public int getInt()
           throws java.io.IOException

Specified by:

getInt in interface Area

Throws:

java.io.IOException

getLong

public long getLong()
             throws java.io.IOException

Specified by:

getLong in interface Area

Throws:

java.io.IOException

getChar

public char getChar()
             throws java.io.IOException

Specified by:

getChar in interface Area

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object