org.apache.jackrabbit.core
Class ItemImpl

java.lang.Object
  org.apache.jackrabbit.core.ItemImpl

All Implemented Interfaces:

Item, ItemStateListener

Direct Known Subclasses:

NodeImpl, PropertyImpl

public abstract class ItemImpl
extends Object
implements Item, ItemStateListener

ItemImpl implements the Item interface.

Field Summary

protected ItemId	id
protected ItemManager	itemMgr ItemManager that created this Item
protected Map	listeners Listeners (weak references)
protected RepositoryImpl	rep the Repository object
protected SessionImpl	session Session through which this Item was acquired
protected ItemState	state ItemState associated with this Item
protected SessionItemStateManager	stateMgr SessionItemStateManager associated with this Item
protected int	status
protected static int	STATUS_DESTROYED
protected static int	STATUS_INVALIDATED
protected static int	STATUS_MODIFIED
protected static int	STATUS_NORMAL

Method Summary

abstract void	accept(ItemVisitor visitor)
Item	getAncestor(int degree)
int	getDepth()
ItemId	getId() Return the id of this Item.
abstract String	getName()
protected abstract ItemState	getOrCreateTransientItemState()
abstract Node	getParent()
String	getPath()
Path	getPrimaryPath() Returns the primary path to this Item.
abstract QName	getQName() Same as Item.getName() except that this method returns a QName instead of a String.
Session	getSession()
protected void	internalRemove(boolean noChecks) Same as Item.remove() except for the noChecks parameter.
boolean	isModified()
boolean	isNew()
abstract boolean	isNode()
boolean	isSame(Item otherItem)
protected boolean	isTransactionalNew() checks if this item is new.
protected boolean	isTransient()
protected abstract void	makePersistent()
protected void	notifyDestroyed() Notify the listeners that this instance has been destroyed (i.e.
protected void	notifyInvalidated() Notify the listeners that this instance has been invalidated (i.e.
void	refresh(boolean keepChanges)
void	remove()
String	safeGetJCRPath() Failsafe mapping of internal id to JCR path for use in diagnostic output, error messages etc.
protected void	sanityCheck() Performs a sanity check on this item and the associated session.
void	save()
protected void	setRemoved() Marks this instance as 'removed' and notifies its listeners.
void	stateCreated(ItemState created) Called when an ItemState has successfully been created (i.e.
void	stateDestroyed(ItemState destroyed) Called when an ItemState has successfully been removed (i.e.
void	stateDiscarded(ItemState discarded) Called when an ItemState has been discarded (i.e.
void	stateModified(ItemState modified) Called when an ItemState has successfully been modified (i.e.

Methods inherited from class java.lang.Object

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

Field Detail

STATUS_NORMAL

protected static final int STATUS_NORMAL

See Also:

Constant Field Values

STATUS_MODIFIED

protected static final int STATUS_MODIFIED

See Also:

Constant Field Values

STATUS_DESTROYED

protected static final int STATUS_DESTROYED

See Also:

Constant Field Values

STATUS_INVALIDATED

protected static final int STATUS_INVALIDATED

See Also:

Constant Field Values

status

protected int status

id

protected final ItemId id

session

protected final SessionImpl session

Session through which this Item was acquired

rep

protected final RepositoryImpl rep

the Repository object

state

protected ItemState state

ItemState associated with this Item

itemMgr

protected final ItemManager itemMgr

ItemManager that created this Item

stateMgr

protected final SessionItemStateManager stateMgr

SessionItemStateManager associated with this Item

listeners

protected final Map listeners

Listeners (weak references)

Method Detail

sanityCheck

protected void sanityCheck()
                    throws RepositoryException

Performs a sanity check on this item and the associated session.

Throws:

RepositoryException - if this item has been rendered invalid for some reason

isTransient

protected boolean isTransient()

getOrCreateTransientItemState

protected abstract ItemState getOrCreateTransientItemState()
                                                    throws RepositoryException

Throws:

RepositoryException

makePersistent

protected abstract void makePersistent()
                                throws InvalidItemStateException

Throws:

InvalidItemStateException

setRemoved

protected void setRemoved()
                   throws RepositoryException

Marks this instance as 'removed' and notifies its listeners. The resulting state is either 'temporarily invalidated' or 'permanently invalidated', depending on the initial state.

Throws:

RepositoryException - if an error occurs

notifyInvalidated

protected void notifyInvalidated()

Notify the listeners that this instance has been invalidated (i.e. it has been temporarily rendered 'invalid').

notifyDestroyed

protected void notifyDestroyed()

Notify the listeners that this instance has been destroyed (i.e. it has been permanently rendered 'invalid').

getId

public ItemId getId()

Return the id of this Item.

Returns:

the id of this Item

getPrimaryPath

public Path getPrimaryPath()
                    throws RepositoryException

Returns the primary path to this Item.

Returns:

the primary path to this Item

Throws:

RepositoryException

safeGetJCRPath

public String safeGetJCRPath()

Failsafe mapping of internal id to JCR path for use in diagnostic output, error messages etc.

Returns:

JCR path or some fallback value

internalRemove

protected void internalRemove(boolean noChecks)
                       throws VersionException,
                              LockException,
                              ConstraintViolationException,
                              RepositoryException

Same as Item.remove() except for the noChecks parameter.

Parameters:

noChecks -

Throws:

VersionException

LockException

RepositoryException

ConstraintViolationException

getQName

public abstract QName getQName()
                        throws RepositoryException

Same as Item.getName() except that this method returns a QName instead of a String.

Returns:

the name of this item as QName

Throws:

RepositoryException - if an error occurs.

stateCreated

public void stateCreated(ItemState created)

Called when an ItemState has successfully been created (i.e. its underlying persistent state was created).

Specified by:

stateCreated in interface ItemStateListener

Parameters:

created - the ItemState that has been 'created'

stateDestroyed

public void stateDestroyed(ItemState destroyed)

Called when an ItemState has successfully been removed (i.e. its underlying persistent state has been destroyed).

Specified by:

stateDestroyed in interface ItemStateListener

Parameters:

destroyed - the ItemState that has been 'destroyed'

stateModified

public void stateModified(ItemState modified)

Called when an ItemState has successfully been modified (i.e. its underlying persistent state has changed).

Specified by:

stateModified in interface ItemStateListener

Parameters:

modified - the ItemState that has been 'modified'

stateDiscarded

public void stateDiscarded(ItemState discarded)

Called when an ItemState has been discarded (i.e. it has been rendered 'invalid').

Specified by:

stateDiscarded in interface ItemStateListener

Parameters:

discarded - the ItemState that has been discarded

See Also:

ItemState.discard()

accept

public abstract void accept(ItemVisitor visitor)
                     throws RepositoryException

Specified by:

accept in interface Item

Throws:

RepositoryException

isNode

public abstract boolean isNode()

Specified by:

isNode in interface Item

getName

public abstract String getName()
                        throws RepositoryException

Specified by:

getName in interface Item

Throws:

RepositoryException

getParent

public abstract Node getParent()
                        throws ItemNotFoundException,
                               AccessDeniedException,
                               RepositoryException

Specified by:

getParent in interface Item

Throws:

ItemNotFoundException

AccessDeniedException

RepositoryException

isNew

public boolean isNew()

Specified by:

isNew in interface Item

isTransactionalNew

protected boolean isTransactionalNew()

checks if this item is new. running outside of transactions, this is the same as isNew() but within a transaction an item can be saved but not yet persisted.

isModified

public boolean isModified()

Specified by:

isModified in interface Item

remove

public void remove()
            throws VersionException,
                   LockException,
                   ConstraintViolationException,
                   RepositoryException

Specified by:

remove in interface Item

Throws:

VersionException

LockException

ConstraintViolationException

RepositoryException

save

public void save()
          throws AccessDeniedException,
                 ItemExistsException,
                 ConstraintViolationException,
                 InvalidItemStateException,
                 ReferentialIntegrityException,
                 VersionException,
                 LockException,
                 NoSuchNodeTypeException,
                 RepositoryException

Specified by:

save in interface Item

Throws:

AccessDeniedException

ItemExistsException

ConstraintViolationException

InvalidItemStateException

ReferentialIntegrityException

VersionException

LockException

NoSuchNodeTypeException

RepositoryException

refresh

public void refresh(boolean keepChanges)
             throws InvalidItemStateException,
                    RepositoryException

Specified by:

refresh in interface Item

Throws:

InvalidItemStateException

RepositoryException

getAncestor

public Item getAncestor(int degree)
                 throws ItemNotFoundException,
                        AccessDeniedException,
                        RepositoryException

Specified by:

getAncestor in interface Item

Throws:

ItemNotFoundException

AccessDeniedException

RepositoryException

getPath

public String getPath()
               throws RepositoryException

Specified by:

getPath in interface Item

Throws:

RepositoryException

getDepth

public int getDepth()
             throws RepositoryException

Specified by:

getDepth in interface Item

Throws:

RepositoryException

getSession

public Session getSession()
                   throws RepositoryException

Specified by:

getSession in interface Item

Throws:

RepositoryException

isSame

public boolean isSame(Item otherItem)
               throws RepositoryException

Specified by:

isSame in interface Item

Throws:

RepositoryException