org.openjdk.jol.datamodel

Class CurrentDataModel

java.lang.Object

org.openjdk.jol.datamodel.CurrentDataModel

All Implemented Interfaces:

DataModel

public class CurrentDataModel
extends Object
implements DataModel

Current data model as detected by JVM.

Author:

Aleksey Shipilev

Constructor Summary

Constructors

Constructor and Description
CurrentDataModel()

Method Summary

Modifier and Type	Method and Description
int	arrayHeaderSize() Return the array header size.
int	headerSize() Return the object header size.
int	objectAlignment() Return the object alignment.
int	sizeOf(String klass) Return the size of the type.

Methods inherited from class java.lang.Object

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

Constructor Detail

CurrentDataModel

public CurrentDataModel()

Method Detail

headerSize

public int headerSize()

Description copied from interface: DataModel

Return the object header size.

Specified by:

headerSize in interface DataModel

Returns:

object header size in bytes.

arrayHeaderSize

public int arrayHeaderSize()

Description copied from interface: DataModel

Return the array header size.

Specified by:

arrayHeaderSize in interface DataModel

Returns:

object header size in bytes.

sizeOf

public int sizeOf(String klass)

Description copied from interface: DataModel

Return the size of the type.

Specified by:

sizeOf in interface DataModel

Parameters:

klass - string representation of the type.

Returns:

size in bytes.

objectAlignment

public int objectAlignment()

Description copied from interface: DataModel

Return the object alignment.

Specified by:

objectAlignment in interface DataModel

Returns:

minimal object alignment