jetbrains.exodus.log

Class RandomAccessLoggableImpl

java.lang.Object

jetbrains.exodus.log.RandomAccessLoggableImpl

All Implemented Interfaces:

Loggable, RandomAccessLoggable

Direct Known Subclasses:

NullLoggable

public class RandomAccessLoggableImpl
extends java.lang.Object
implements RandomAccessLoggable

Field Summary

Fields inherited from interface jetbrains.exodus.log.Loggable

NO_STRUCTURE_ID, NULL_ADDRESS

Constructor Summary

Constructors

Constructor and Description
RandomAccessLoggableImpl(long address, byte type, @NotNull ByteIterableWithAddress data, int dataLength, int structureId)

Method Summary

Modifier and Type	Method and Description
long	getAddress() Address of the loggable in log.
@NotNull ByteIterableWithAddress	getData() Loggable data.
int	getDataLength() Length of the loggable data.
int	getStructureId() Returns unique id of structure that the loggable belongs to.
byte	getType() Type of loggable.
int	length() Length of the loggable with header and data.

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomAccessLoggableImpl

public RandomAccessLoggableImpl(long address,
                                byte type,
                                @NotNull
                                @NotNull ByteIterableWithAddress data,
                                int dataLength,
                                int structureId)

Method Detail

getAddress

public long getAddress()

Description copied from interface: Loggable

Address of the loggable in log. It's available (has non-negative value) only for loggables been read from log. Loggables to write return indefinite value.

Specified by:

getAddress in interface Loggable

Returns:

non-negative address of the loggable.

getType

public byte getType()

Description copied from interface: Loggable

Type of loggable.

Specified by:

getType in interface Loggable

Returns:

integer int the range [0..127] identifying the loggable.

length

public int length()

Description copied from interface: Loggable

Length of the loggable with header and data.

Specified by:

length in interface Loggable

Returns:

length of the loggable with header and data.

getData

@NotNull
public @NotNull ByteIterableWithAddress getData()

Description copied from interface: Loggable

Loggable data.

Specified by:

getData in interface Loggable

Specified by:

getData in interface RandomAccessLoggable

Returns:

loggable data.

getDataLength

public int getDataLength()

Description copied from interface: Loggable

Length of the loggable data.

Specified by:

getDataLength in interface Loggable

Returns:

length of the loggable data.

getStructureId

public int getStructureId()

Description copied from interface: Loggable

Returns unique id of structure that the loggable belongs to. Basically, structure id is id of a tree (BTree or Patricia). Valid structure id is non-zero.

Specified by:

getStructureId in interface Loggable

Returns:

unique structure id.