com.orientechnologies.orient.core.storage.fs

Class OFileClassic

java.lang.Object

com.orientechnologies.orient.core.storage.fs.OFileClassic

All Implemented Interfaces:

OClosableItem

public final class OFileClassic
extends Object
implements OClosableItem

Field Summary

Fields

Modifier and Type	Field and Description
static int	HEADER_SIZE
static String	NAME
static int	VERSION_OFFSET

Constructor Summary

Constructors

Constructor and Description
OFileClassic(Path osFile, int pageSize)

Method Summary

Modifier and Type	Method and Description
long	allocateSpace(int size)
void	close() Closes the file.
void	create() Creates the file.
void	delete() Deletes the file.
boolean	exists()
long	getFileSize()
String	getName()
String	getPath()
boolean	isOpen()
void	open() Opens the file.
void	read(long iOffset, byte[] iDestBuffer, int iLength)
void	read(long offset, byte[] iData, int iLength, int iArrayOffset)
void	read(long offset, ByteBuffer[] buffers, boolean throwOnEof)
void	read(long offset, ByteBuffer buffer, boolean throwOnEof)
int	readInt(long iOffset)
long	readLong(long iOffset)
void	renameTo(Path newFile)
void	replaceContentWith(Path newContentFile) Replaces the file content with the content of the provided file.
void	shrink(long size) Shrink the file content (filledUpTo attribute only)
void	synch() Synchronizes the buffered changes to disk.
String	toString()
void	write(ArrayList<ORawPair<Long,ByteBuffer>> data, int maxScheduledWrites)
void	write(long iOffset, byte[] iSourceBuffer)
void	write(long iOffset, byte[] iData, int iSize, int iArrayOffset)
void	write(long offset, ByteBuffer buffer)
void	write(long offset, ByteBuffer[] buffers)
void	writeByte(long iOffset, byte iValue)
void	writeInt(long iOffset, int iValue)
void	writeLong(long iOffset, long iValue)

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

HEADER_SIZE

public static final int HEADER_SIZE

See Also:

Constant Field Values

VERSION_OFFSET

public static final int VERSION_OFFSET

See Also:

Constant Field Values

Constructor Detail

OFileClassic

public OFileClassic(Path osFile,
                    int pageSize)

Method Detail

allocateSpace

public long allocateSpace(int size)
                   throws IOException

Throws:

IOException

shrink

public void shrink(long size)
            throws IOException

Shrink the file content (filledUpTo attribute only)

Throws:

IOException

getFileSize

public long getFileSize()

read

public void read(long offset,
                 byte[] iData,
                 int iLength,
                 int iArrayOffset)
          throws IOException

Throws:

IOException

read

public void read(long offset,
                 ByteBuffer buffer,
                 boolean throwOnEof)
          throws IOException

Throws:

IOException

read

public void read(long offset,
                 ByteBuffer[] buffers,
                 boolean throwOnEof)
          throws IOException

Throws:

IOException

write

public void write(long offset,
                  ByteBuffer buffer)
           throws IOException

Throws:

IOException

write

public void write(long offset,
                  ByteBuffer[] buffers)
           throws IOException

Throws:

IOException

write

public void write(ArrayList<ORawPair<Long,ByteBuffer>> data,
                  int maxScheduledWrites)
           throws IOException

Throws:

IOException

write

public void write(long iOffset,
                  byte[] iData,
                  int iSize,
                  int iArrayOffset)
           throws IOException

Throws:

IOException

read

public void read(long iOffset,
                 byte[] iDestBuffer,
                 int iLength)
          throws IOException

Throws:

IOException

readInt

public int readInt(long iOffset)
            throws IOException

Throws:

IOException

readLong

public long readLong(long iOffset)
              throws IOException

Throws:

IOException

writeInt

public void writeInt(long iOffset,
                     int iValue)
              throws IOException

Throws:

IOException

writeLong

public void writeLong(long iOffset,
                      long iValue)
               throws IOException

Throws:

IOException

writeByte

public void writeByte(long iOffset,
                      byte iValue)
               throws IOException

Throws:

IOException

write

public void write(long iOffset,
                  byte[] iSourceBuffer)
           throws IOException

Throws:

IOException

synch

public void synch()

Synchronizes the buffered changes to disk.

create

public void create()
            throws IOException

Creates the file.

Throws:

IOException

open

public void open()

Opens the file.

Specified by:

open in interface OClosableItem

close

public void close()

Closes the file.

Specified by:

close in interface OClosableItem

delete

public void delete()
            throws IOException

Deletes the file.

Throws:

IOException

isOpen

public boolean isOpen()

Specified by:

isOpen in interface OClosableItem

exists

public boolean exists()

getName

public String getName()

getPath

public String getPath()

renameTo

public void renameTo(Path newFile)
              throws IOException

Throws:

IOException

replaceContentWith

public void replaceContentWith(Path newContentFile)
                        throws IOException

Replaces the file content with the content of the provided file.

Parameters:

newContentFile - the new content file to replace the content with.

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object