org.openjdk.jmc.common.util

Class MCOldObject

java.lang.Object

org.openjdk.jmc.common.util.MCOldObject

All Implemented Interfaces:

IMCOldObject

public class MCOldObject
extends java.lang.Object
implements IMCOldObject

Base implementation of the IMCOldObject interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	MCOldObject.MCOldObjectArray
private static class	MCOldObject.MCOldObjectField

Field Summary

Fields

Modifier and Type	Field and Description
private IQuantity	address
private MCOldObject.MCOldObjectArray	array
private MCOldObject.MCOldObjectField	field
private java.lang.String	objectDescription
private IMCOldObject	referrer
private IMCType	type

Constructor Summary

Constructors

Constructor and Description
MCOldObject(IQuantity address, IMCType type, java.lang.String objectDescription, IMCOldObject referrer, java.lang.String field, IQuantity fieldModifier, IQuantity arraySize, IQuantity arrayIndex) Create a new old object instance.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
IQuantity	getAddress() The address of the object, used for identity purposes.
java.lang.String	getDescription() Returns a description of the object.
IMCOldObject	getReferrer() Returns the object that refers to this object in the heap reference chain.
IMCOldObjectArray	getReferrerArray() If the object is referred to by an object in an array it returns the information about that array, otherwise it returns null.
IMCOldObjectField	getReferrerField() If the object is referred to by an object in a field it returns a representation of the field, null otherwise.
int	getReferrerSkip() Returns the number of steps away in the reference chain this object is from the next object referring to it.
IMCType	getType() The type of the object, as an IMCType
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

address

private final IQuantity address

array

private final MCOldObject.MCOldObjectArray array

field

private final MCOldObject.MCOldObjectField field

objectDescription

private final java.lang.String objectDescription

referrer

private final IMCOldObject referrer

type

private final IMCType type

Constructor Detail

MCOldObject

public MCOldObject(IQuantity address,
                   IMCType type,
                   java.lang.String objectDescription,
                   IMCOldObject referrer,
                   java.lang.String field,
                   IQuantity fieldModifier,
                   IQuantity arraySize,
                   IQuantity arrayIndex)

Create a new old object instance.

Parameters:

address - object address, see IMCOldObject.getAddress()

type - object type

objectDescription - object description

referrer - Referrer object, see IMCOldObject.getReferrer(). null if there is no referring object.

field - Name of the referring field, see IMCOldObjectField.getName(). null if there is no referring field.

fieldModifier - Modifier of the referring field, see IMCOldObjectField.getModifier(). null if there is no referring field.

arraySize - The array size if field refers to an array, see IMCOldObjectArray.getSize(). null if the field is not an array.

arrayIndex - The array index that refers to this object if field refers to an array, see IMCOldObjectArray.getIndex(). null if the field is not an array.

Method Detail

getAddress

public IQuantity getAddress()

Description copied from interface: IMCOldObject

The address of the object, used for identity purposes.

Specified by:

getAddress in interface IMCOldObject

Returns:

the address of the object

getReferrerArray

public IMCOldObjectArray getReferrerArray()

Description copied from interface: IMCOldObject

If the object is referred to by an object in an array it returns the information about that array, otherwise it returns null.

Specified by:

getReferrerArray in interface IMCOldObject

Returns:

a representation of the array data for the object referring to this old object

getReferrerField

public IMCOldObjectField getReferrerField()

Description copied from interface: IMCOldObject

If the object is referred to by an object in a field it returns a representation of the field, null otherwise.

Specified by:

getReferrerField in interface IMCOldObject

Returns:

a representation of the field that refers to this object

getDescription

public java.lang.String getDescription()

Description copied from interface: IMCOldObject

Returns a description of the object.

Specified by:

getDescription in interface IMCOldObject

Returns:

the object description

getReferrer

public IMCOldObject getReferrer()

Description copied from interface: IMCOldObject

Returns the object that refers to this object in the heap reference chain.

Specified by:

getReferrer in interface IMCOldObject

Returns:

the object that refers to this object

getType

public IMCType getType()

Description copied from interface: IMCOldObject

The type of the object, as an IMCType

Specified by:

getType in interface IMCOldObject

Returns:

the type of the object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getReferrerSkip

public int getReferrerSkip()

Description copied from interface: IMCOldObject

Returns the number of steps away in the reference chain this object is from the next object referring to it. If this is greater than 0, it means that there are objects between this one and the referrer that were omitted when committing the traces to the Flight Recording file.

Specified by:

getReferrerSkip in interface IMCOldObject

Returns:

the number of steps between this object and the next one towards the root in the reference chain