net.ontopia.persistence.proxy
Class AbstractRWPersistent

java.lang.Object
  net.ontopia.persistence.proxy.AbstractRWPersistent

All Implemented Interfaces:

PersistentIF

Direct Known Subclasses:

TMObject

public abstract class AbstractRWPersistent
extends Object
implements PersistentIF

INTERNAL: An abstract PersistentIF implementation that handles most of the machinery needed to implement persistent objects. Note that other persistent classes should extend this class.

Field Summary

protected IdentityIF	id
protected static int[]	MASKS
protected TransactionIF	txn
Object[]	values

Constructor Summary

AbstractRWPersistent()

AbstractRWPersistent(TransactionIF txn)

Method Summary

IdentityIF	_p_getIdentity() INTERNAL: Returns the identity of the object.
TransactionIF	_p_getTransaction() INTERNAL: Returns the transaction that is responible for managing the object.
Object	_p_getType() INTERNAL: Returns the object.type.
void	_p_setIdentity(IdentityIF identity) INTERNAL: Sets the identity of the object.
void	_p_setTransaction(TransactionIF txn) INTERNAL: Sets the transaction that is responible for managing the object.
String	_p_toString()
void	clearAll()
abstract void	detach()
protected void	detachCollectionField(int field)
protected void	detachField(int field)
protected Object	executeQuery(String name, Object[] params)
protected Object	getValue(int field)
boolean	isDeleted()
boolean	isDirty()
boolean	isDirty(int field)
boolean	isDirtyFlushed()
boolean	isDirtyFlushed(int field)
boolean	isInDatabase()
boolean	isLoaded(int field)
boolean	isNewObject()
boolean	isPersistent()
boolean	isTransient()
protected Collection	loadCollectionField(int field)
protected Object	loadField(int field) INTERNAL: Called when the instance requests the initialization of the specified field value.
protected Object	loadFieldNoCheck(int field)
Object	loadValue(FieldInfoIF finfo)
int	nextDirty(int start)
int	nextDirty(int start, int end)
int	nextDirtyFlushed(int start)
int	nextDirtyFlushed(int start, int end)
void	setDeleted(boolean deleted)
void	setDirty(int field, boolean dirty)
void	setDirtyFlushed(int field, boolean dirty)
void	setInDatabase(boolean inDatabase)
void	setNewObject(boolean newObject)
void	setPersistent(boolean persistent)
protected void	setValue(int field, Object value)
protected void	unsetValue(int field, Object value)
protected void	valueAdded(int field, Object value, boolean dchange)
protected void	valueChanged(int field, Object value, boolean dchange) INTERNAL: Called when a field value has been changed.
protected void	valueRemoved(int field, Object value, boolean dchange)

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.ontopia.persistence.proxy.PersistentIF

_p_getFieldCount

Field Detail

id

protected IdentityIF id

txn

protected TransactionIF txn

MASKS

protected static final int[] MASKS

values

public Object[] values

Constructor Detail

AbstractRWPersistent

public AbstractRWPersistent()

AbstractRWPersistent

public AbstractRWPersistent(TransactionIF txn)

Method Detail

_p_getIdentity

public IdentityIF _p_getIdentity()

Description copied from interface: PersistentIF

INTERNAL: Returns the identity of the object.

Specified by:

_p_getIdentity in interface PersistentIF

_p_getType

public Object _p_getType()

Description copied from interface: PersistentIF

INTERNAL: Returns the object.type. This information is used by the transaction to handle the persistent mapping for the object.

Specified by:

_p_getType in interface PersistentIF

_p_setIdentity

public void _p_setIdentity(IdentityIF identity)

Description copied from interface: PersistentIF

INTERNAL: Sets the identity of the object.

Specified by:

_p_setIdentity in interface PersistentIF

_p_getTransaction

public TransactionIF _p_getTransaction()

Description copied from interface: PersistentIF

INTERNAL: Returns the transaction that is responible for managing the object.

Specified by:

_p_getTransaction in interface PersistentIF

_p_setTransaction

public void _p_setTransaction(TransactionIF txn)

Description copied from interface: PersistentIF

INTERNAL: Sets the transaction that is responible for managing the object.

Specified by:

_p_setTransaction in interface PersistentIF

loadField

protected Object loadField(int field)

INTERNAL: Called when the instance requests the initialization of the specified field value. This call will lead to the value being retrieved from the data repository if the instance is managed by a transaction, otherwise a default value will be set.

Returns:

FIXME: only loaded values will be returned. if the default value is being set, the return value is null.

loadFieldNoCheck

protected Object loadFieldNoCheck(int field)
                           throws IdentityNotFoundException

Throws:

IdentityNotFoundException

loadCollectionField

protected Collection loadCollectionField(int field)

detach

public abstract void detach()

Specified by:

detach in interface PersistentIF

detachField

protected void detachField(int field)

detachCollectionField

protected void detachCollectionField(int field)

valueChanged

protected void valueChanged(int field,
                            Object value,
                            boolean dchange)

INTERNAL: Called when a field value has been changed. The managing transaction will be notified.

valueAdded

protected void valueAdded(int field,
                          Object value,
                          boolean dchange)

valueRemoved

protected void valueRemoved(int field,
                            Object value,
                            boolean dchange)

executeQuery

protected Object executeQuery(String name,
                              Object[] params)

isTransient

public boolean isTransient()

Specified by:

isTransient in interface PersistentIF

isNewObject

public boolean isNewObject()

Specified by:

isNewObject in interface PersistentIF

setNewObject

public void setNewObject(boolean newObject)

Specified by:

setNewObject in interface PersistentIF

isInDatabase

public boolean isInDatabase()

Specified by:

isInDatabase in interface PersistentIF

setInDatabase

public void setInDatabase(boolean inDatabase)

Specified by:

setInDatabase in interface PersistentIF

isPersistent

public boolean isPersistent()

Specified by:

isPersistent in interface PersistentIF

setPersistent

public void setPersistent(boolean persistent)

Specified by:

setPersistent in interface PersistentIF

isDeleted

public boolean isDeleted()

Specified by:

isDeleted in interface PersistentIF

setDeleted

public void setDeleted(boolean deleted)

Specified by:

setDeleted in interface PersistentIF

isLoaded

public boolean isLoaded(int field)

Specified by:

isLoaded in interface PersistentIF

loadValue

public Object loadValue(FieldInfoIF finfo)

Specified by:

loadValue in interface PersistentIF

getValue

protected Object getValue(int field)

setValue

protected void setValue(int field,
                        Object value)

unsetValue

protected void unsetValue(int field,
                          Object value)

isDirty

public boolean isDirty()

Specified by:

isDirty in interface PersistentIF

isDirty

public boolean isDirty(int field)

Specified by:

isDirty in interface PersistentIF

nextDirty

public int nextDirty(int start)

Specified by:

nextDirty in interface PersistentIF

nextDirty

public int nextDirty(int start,
                     int end)

Specified by:

nextDirty in interface PersistentIF

setDirty

public void setDirty(int field,
                     boolean dirty)

isDirtyFlushed

public boolean isDirtyFlushed()

isDirtyFlushed

public boolean isDirtyFlushed(int field)

nextDirtyFlushed

public int nextDirtyFlushed(int start)

nextDirtyFlushed

public int nextDirtyFlushed(int start,
                            int end)

setDirtyFlushed

public void setDirtyFlushed(int field,
                            boolean dirty)

Specified by:

setDirtyFlushed in interface PersistentIF

clearAll

public void clearAll()

Specified by:

clearAll in interface PersistentIF

_p_toString

public String _p_toString()