wt.vc
Class VersionReference

java.lang.Object
  wt.vc.VersionReference

All Implemented Interfaces:

Externalizable, NetFactor, ObjectMappable, Serializable, WTReference

Direct Known Subclasses:

RefreshHelper.RoleVersionReference

public class VersionReference

extends Object

implements WTReference, Externalizable

Use the newVersionReference static factory method(s), not the VersionReference constructor, to construct instances of this class. Instances must be constructed using the static factory(s), in order to ensure proper initialization of the instance.

Supported API: true

Extendable: false

See Also:

Serialized Form

Field Summary

private static String	CLASSNAME
static long	EXTERNALIZATION_VERSION_UID
private VersionForeignKey	key
static String	KEY Label for the attribute.
private Iterated	object
static String	OBJECT Label for the attribute.
protected static long	OLD_FORMAT_VERSION_UID
private static String	RESOURCE
(package private) static long	serialVersionUID

Constructor Summary

VersionReference()

Method Summary

void	deflate() Dereferences the inflated persistable this reference currently stores.
boolean	equals(Object obj) Supported API: true
ClassInfo	getClassInfo() Returns the ClassInfo object for this class.
String	getConceptualClassname() Deprecated.
QueryKey	getKey() Gets the object for the association that plays role: KEY.
Persistable	getObject() Gets the object for the association that plays role: OBJECT.
Class	getReferencedClass() Returns the class that this reference refers to.
int	hashCode() Supported API: true
protected void	initialize(Iterated obj) Supported API: true
protected void	initialize(VersionForeignKey objId) Supported API: true
boolean	isInflated() Determines if this reference is currently storing an inflated Persistable.
private boolean	isValid() Determines if this reference is currently storing an inflated, persisted object with a non-zero branch id
static VersionReference	newVersionReference(Iterated obj) Supported API: true
static VersionReference	newVersionReference(VersionForeignKey objId) Supported API: true
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
void	readExternal(PersistentRetrieveIfc input) Used by Persistent Data Service to populate the persistent attributes of this class from a persistent store.
private boolean	readOldVersion(ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source, which is not the current version.
protected boolean	readVersion(VersionReference thisObject, ObjectInput input, long readSerialVersionUID, boolean passThrough, boolean superDone) Reads the non-transient fields of this class from an external source.
boolean	references(Persistable obj) Supported API: true
void	refresh() Supported API: true
void	setKey(QueryKey a_Key) Sets the object for the association that plays role: KEY.
void	setObject(Iterated i) Makes this reference point to the given iterated object
String	toString() Returns the conceptual (modeled) name for the class.
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.
void	writeExternal(PersistentStoreIfc output) Used by Persistent Data Service to obtain the values of the persistent attributes of this class, so they can be written to a persistent store.

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

KEY

public static final String KEY

Label for the attribute.

Supported API: false

See Also:

Constant Field Values

key

private VersionForeignKey key

OBJECT

public static final String OBJECT

Label for the attribute.

Supported API: false

See Also:

Constant Field Values

object

private Iterated object

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

EXTERNALIZATION_VERSION_UID

public static final long EXTERNALIZATION_VERSION_UID

See Also:

Constant Field Values

OLD_FORMAT_VERSION_UID

protected static final long OLD_FORMAT_VERSION_UID

See Also:

Constant Field Values

Constructor Detail

VersionReference

public VersionReference()

Method Detail

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Supported API: false

Specified by:

writeExternal in interface Externalizable

Parameters:

output -

Throws:

IOException

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Specified by:

readExternal in interface Externalizable

Parameters:

input -

Throws:

IOException

ClassNotFoundException

readVersion

protected boolean readVersion(VersionReference thisObject,
                              ObjectInput input,
                              long readSerialVersionUID,
                              boolean passThrough,
                              boolean superDone)
                       throws IOException,
                              ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Parameters:

thisObject -

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

readOldVersion

private boolean readOldVersion(ObjectInput input,
                               long readSerialVersionUID,
                               boolean passThrough,
                               boolean superDone)
                        throws IOException,
                               ClassNotFoundException

Reads the non-transient fields of this class from an external source, which is not the current version.

Parameters:

input -

readSerialVersionUID -

passThrough -

superDone -

Returns:

boolean

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(PersistentStoreIfc output)
                   throws SQLException,
                          DatastoreException

Used by Persistent Data Service to obtain the values of the persistent attributes of this class, so they can be written to a persistent store.

(Not intended for general use.)

Supported API: false

Specified by:

writeExternal in interface ObjectMappable

Parameters:

output -

Throws:

SQLException

DatastoreException

readExternal

public void readExternal(PersistentRetrieveIfc input)
                  throws SQLException,
                         DatastoreException

Used by Persistent Data Service to populate the persistent attributes of this class from a persistent store.

(Not intended for general use.)

Supported API: false

Specified by:

readExternal in interface ObjectMappable

Parameters:

input -

Throws:

SQLException

DatastoreException

getConceptualClassname

public String getConceptualClassname()

Deprecated.

Returns the conceptual (modeled) name for the class.

Supported API: false

Specified by:

getConceptualClassname in interface NetFactor

Returns:

String

toString

public String toString()

Returns the conceptual (modeled) name for the class.

Supported API: false

Returns:

String

getClassInfo

public ClassInfo getClassInfo()
                       throws WTIntrospectionException

Returns the ClassInfo object for this class.

Supported API: false

Specified by:

getClassInfo in interface NetFactor

Returns:

ClassInfo

Throws:

WTIntrospectionException

getKey

public QueryKey getKey()

Gets the object for the association that plays role: KEY.

Supported API: false

Specified by:

getKey in interface WTReference

Returns:

QueryKey

setKey

public void setKey(QueryKey a_Key)

Sets the object for the association that plays role: KEY.

Supported API: false

Specified by:

setKey in interface WTReference

Parameters:

a_Key -

getObject

public Persistable getObject()
                      throws WTRuntimeException

Gets the object for the association that plays role: OBJECT.

Supported API: false

Specified by:

getObject in interface WTReference

Returns:

Persistable

Throws:

WTRuntimeException

newVersionReference

public static VersionReference newVersionReference(Iterated obj)
                                            throws WTException

Supported API: true

Parameters:

obj -

Returns:

VersionReference

Throws:

WTException

newVersionReference

public static VersionReference newVersionReference(VersionForeignKey objId)
                                            throws WTException

Supported API: true

Parameters:

objId -

Returns:

VersionReference

Throws:

WTException

refresh

public void refresh()
             throws WTException

Supported API: true

Specified by:

refresh in interface WTReference

Throws:

WTException

equals

public boolean equals(Object obj)

Supported API: true

Specified by:

equals in interface WTReference

Parameters:

obj -

Returns:

boolean

hashCode

public int hashCode()

Supported API: true

Specified by:

hashCode in interface WTReference

Returns:

int

references

public boolean references(Persistable obj)

Supported API: true

Specified by:

references in interface WTReference

Parameters:

obj -

Returns:

boolean

initialize

protected void initialize(Iterated obj)
                   throws WTException

Supported API: true

Parameters:

obj -

Throws:

WTException

initialize

protected void initialize(VersionForeignKey objId)
                   throws WTException

Supported API: true

Parameters:

objId -

Throws:

WTException

getReferencedClass

public Class getReferencedClass()

Returns the class that this reference refers to. This method does not retreive the referenced object from the database.

Supported API: false

Specified by:

getReferencedClass in interface WTReference

Returns:

Class

deflate

public void deflate()

Dereferences the inflated persistable this reference currently stores.

isInflated

public boolean isInflated()

Determines if this reference is currently storing an inflated Persistable. The Persistable may or may not be persisted.

Returns:

boolean

isValid

private boolean isValid()

Determines if this reference is currently storing an inflated, persisted object with a non-zero branch id

Returns:

boolean

setObject

public void setObject(Iterated i)
               throws WTPropertyVetoException

Makes this reference point to the given iterated object

Parameters:

i -

Throws:

WTPropertyVetoException