org.alfresco.jlan.server.filesys.loader

Class MemorySegment

java.lang.Object

org.alfresco.jlan.server.filesys.loader.MemorySegment

public class MemorySegment
extends java.lang.Object

Memory Segment Class

Contains an in-memory copy of file data.

Constructor Summary

Constructors

Constructor and Description
MemorySegment(byte[] buf, int pos, int len, long fileOff) Class constructor
MemorySegment(byte[] buf, long fileOff) Class constructor

Method Summary

Methods

Modifier and Type	Method and Description
boolean	containsData(long fileOff, int len) Check if this segment contains the data for the specified request
void	copyBytes(byte[] buf, int pos, int len, long fileOff) Copy data to the specified user buffer
protected void	decrementReadCounter() Decrement the read counter, if greater than zero
protected void	decrementReadCounter(int decr) Decrement the read counter, if greater than zero
byte[]	getBuffer() Return the buffer
long	getFileOffset() Return the file offset of the data
int	getLength() Return the buffer length
int	getReadCounter() Return the memory segment read count
void	incrementReadCounter(int incr) Increment the read counter by the specified amount
java.lang.String	toString() Return the memory segment as a string

Methods inherited from class java.lang.Object

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

Constructor Detail

MemorySegment

public MemorySegment(byte[] buf,
             long fileOff)

Class constructor

Parameters:

buf - byte[]

fileOff - long

MemorySegment

public MemorySegment(byte[] buf,
             int pos,
             int len,
             long fileOff)

Class constructor

Parameters:

buf - byte[]

pos - int

len - int

fileOff - long

Method Detail

getBuffer

public final byte[] getBuffer()

Return the buffer

Returns:

byte[]

getLength

public final int getLength()

Return the buffer length

Returns:

int

getFileOffset

public final long getFileOffset()

Return the file offset of the data

Returns:

long

getReadCounter

public final int getReadCounter()

Return the memory segment read count

Returns:

int

containsData

public final boolean containsData(long fileOff,
                   int len)

Check if this segment contains the data for the specified request

Parameters:

fileOff - long

len - int

Returns:

boolean

copyBytes

public final void copyBytes(byte[] buf,
             int pos,
             int len,
             long fileOff)

Copy data to the specified user buffer

Parameters:

buf - byte[]

pos - int

len - int

fileOff - long

incrementReadCounter

public final void incrementReadCounter(int incr)

Increment the read counter by the specified amount

Parameters:

incr - int

decrementReadCounter

protected final void decrementReadCounter(int decr)

Decrement the read counter, if greater than zero

Parameters:

decr - int

decrementReadCounter

protected final void decrementReadCounter()

Decrement the read counter, if greater than zero

toString

public java.lang.String toString()

Return the memory segment as a string

Overrides:

toString in class java.lang.Object

Returns:

String