Package org.h2.mvstore.db

Class LobStorageMap.BlobReference.Type

java.lang.Object

org.h2.mvstore.type.BasicDataType<LobStorageMap.BlobReference>

org.h2.mvstore.db.LobStorageMap.BlobReference.Type

All Implemented Interfaces:

java.util.Comparator<LobStorageMap.BlobReference>, DataType<LobStorageMap.BlobReference>

Enclosing class:

LobStorageMap.BlobReference

public static final class LobStorageMap.BlobReference.Type
extends BasicDataType<LobStorageMap.BlobReference>

Field Summary

Fields

Modifier and Type	Field	Description
static LobStorageMap.BlobReference.Type	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Type()

Method Summary

Modifier and Type	Method	Description
int	compare(LobStorageMap.BlobReference one, LobStorageMap.BlobReference two)	Compare two keys.
LobStorageMap.BlobReference[]	createStorage(int size)	Create storage object of array type to hold values
int	getMemory(LobStorageMap.BlobReference blobReference)	Calculates the amount of used memory in bytes.
LobStorageMap.BlobReference	read(java.nio.ByteBuffer buff)	Read an object.
void	write(WriteBuffer buff, LobStorageMap.BlobReference blobReference)	Write an object.

Methods inherited from class org.h2.mvstore.type.BasicDataType

binarySearch, cast, equals, hashCode, isMemoryEstimationAllowed, read, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

INSTANCE

public static final LobStorageMap.BlobReference.Type INSTANCE

Constructor Detail

Type

private Type()

Method Detail

getMemory

public int getMemory(LobStorageMap.BlobReference blobReference)

Description copied from interface: DataType

Calculates the amount of used memory in bytes.

Specified by:

getMemory in interface DataType<LobStorageMap.BlobReference>

Specified by:

getMemory in class BasicDataType<LobStorageMap.BlobReference>

Parameters:

blobReference - the object

Returns:

the used memory

compare

public int compare(LobStorageMap.BlobReference one,
                   LobStorageMap.BlobReference two)

Description copied from interface: DataType

Compare two keys.

Specified by:

compare in interface java.util.Comparator<LobStorageMap.BlobReference>

Specified by:

compare in interface DataType<LobStorageMap.BlobReference>

Overrides:

compare in class BasicDataType<LobStorageMap.BlobReference>

Parameters:

one - the first key

two - the second key

Returns:

-1 if the first key is smaller, 1 if larger, and 0 if equal

write

public void write(WriteBuffer buff,
                  LobStorageMap.BlobReference blobReference)

Description copied from interface: DataType

Write an object.

Specified by:

write in interface DataType<LobStorageMap.BlobReference>

Specified by:

write in class BasicDataType<LobStorageMap.BlobReference>

Parameters:

buff - the target buffer

blobReference - the value

read

public LobStorageMap.BlobReference read(java.nio.ByteBuffer buff)

Description copied from interface: DataType

Read an object.

Specified by:

read in interface DataType<LobStorageMap.BlobReference>

Specified by:

read in class BasicDataType<LobStorageMap.BlobReference>

Parameters:

buff - the source buffer

Returns:

the object

createStorage

public LobStorageMap.BlobReference[] createStorage(int size)

Description copied from interface: DataType

Create storage object of array type to hold values

Parameters:

size - number of values to hold

Returns:

storage object