Package org.apache.jackrabbit.oak.jcr.delegate

Class ItemDelegate

java.lang.Object

org.apache.jackrabbit.oak.jcr.delegate.ItemDelegate

Direct Known Subclasses:

NodeDelegate, PropertyDelegate

public abstract class ItemDelegate
extends Object

Abstract base class for NodeDelegate and PropertyDelegate

Field Summary

Fields

Modifier and Type	Field	Description
protected SessionDelegate	sessionDelegate

Method Summary

Modifier and Type	Method	Description
void	checkAlive()	Performs a sanity check on this item and the associated session.
protected boolean	checkUpdate()	Checks whether the session has changed since this delegate instance was last accessed, thus triggering an update of the internal state of this delegate.
abstract boolean	exists()	Determine whether the underlying item exists
abstract @NotNull String	getName()	Get the name of this item
abstract @Nullable NodeDelegate	getParent()	Get the parent of this item or null.
abstract @NotNull String	getPath()	Get the path of this item
abstract @Nullable Tree.Status	getStatus()	Get the status of this item.
abstract boolean	isProtected()
abstract boolean	remove()	Removes this item.
void	save()	Save the subtree rooted at this item.
protected void	update()	Called by checkUpdate() to update the internal state of this delegate.

Methods inherited from class java.lang.Object

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

Field Detail

sessionDelegate

protected final SessionDelegate sessionDelegate

Method Detail

checkUpdate

protected boolean checkUpdate()

Checks whether the session has changed since this delegate instance was last accessed, thus triggering an update of the internal state of this delegate.

Returns:

true if the session was recently updated, false if not

update

protected void update()

Called by checkUpdate() to update the internal state of this delegate.

checkAlive

public void checkAlive()
                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 or the associated session has been logged out

getName

@NotNull
public abstract @NotNull String getName()

Get the name of this item

Returns:

oak name of this item

getPath

@NotNull
public abstract @NotNull String getPath()

Get the path of this item

Returns:

oak path of this item

getParent

@Nullable
public abstract @Nullable NodeDelegate getParent()

Get the parent of this item or null.

Returns:

parent of this item or null for root or if the parent is not accessible.

getStatus

@Nullable
public abstract @Nullable Tree.Status getStatus()

Get the status of this item.

Returns:

Tree.Status of this item or null if not available.

isProtected

public abstract boolean isProtected()
                             throws InvalidItemStateException

Throws:

InvalidItemStateException

exists

public abstract boolean exists()

Determine whether the underlying item exists

Returns:

true the underlying tree exists, false otherwise.

remove

public abstract boolean remove()
                        throws InvalidItemStateException

Removes this item.

Returns:

true if this item was removed; or false if this is the root node that can't be removed

Throws:

InvalidItemStateException

save

public void save()
          throws RepositoryException

Save the subtree rooted at this item.

Throws:

RepositoryException