net.sf.webdav.locking
Class LockedObject

java.lang.Object
  net.sf.webdav.locking.LockedObject

public class LockedObject
extends Object

a helper class for ResourceLocks, represents the Locks

Author:

re

Field Summary

protected LockedObject[]	_children children of that lock
protected boolean	_exclusive weather the lock is exclusive or not.
protected long	_expiresAt Describing the timeout of a locked object (ms)
protected int	_lockDepth Describing the depth of a locked collection.
protected String[]	_owner owner of the lock.
protected LockedObject	_parent
protected String	_type weather the lock is a write or read lock

Constructor Summary

LockedObject(ResourceLocks resLocks, String path, boolean temporary)

Method Summary

void	addChild(LockedObject newChild) adds a new child lock to this lock
boolean	addLockedObjectOwner(String owner) adds a new owner to a lock
boolean	checkLocks(boolean exclusive, int depth) checks if a lock of the given exclusivity can be placed, only considering children up to "depth"
String	getID() Gets the LockID (locktoken) for the LockedObject
int	getLockDepth() Gets the depth of the lock
String[]	getOwner() Gets the owners for the LockedObject
String	getPath() Gets the path for the LockedObject
long	getTimeoutMillis() Gets the timeout for the LockedObject
String	getType() Gets the type of the lock
boolean	hasExpired() Return true if the lock has expired.
boolean	isExclusive() Gets the exclusivity for the LockedObject
boolean	isShared() Gets the exclusivity for the LockedObject
void	refreshTimeout(int timeout) Sets a new timeout for the LockedObject
void	removeLockedObject() deletes this Lock object.
void	removeLockedObjectOwner(String owner) tries to remove the owner from the lock
void	removeTempLockedObject() deletes this Lock object.
void	setExclusive(boolean exclusive) Sets the exclusivity for the LockedObject

Methods inherited from class java.lang.Object

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

Field Detail

_lockDepth

protected int _lockDepth

Describing the depth of a locked collection. If the locked resource is not a collection, depth is 0 / doesn't matter.

_expiresAt

protected long _expiresAt

Describing the timeout of a locked object (ms)

_owner

protected String[] _owner

owner of the lock. shared locks can have multiple owners. is null if no owner is present

_children

protected LockedObject[] _children

children of that lock

_parent

protected LockedObject _parent

_exclusive

protected boolean _exclusive

weather the lock is exclusive or not. if owner=null the exclusive value doesn't matter

_type

protected String _type

weather the lock is a write or read lock

Constructor Detail

LockedObject

public LockedObject(ResourceLocks resLocks,
                    String path,
                    boolean temporary)

Parameters:

_resourceLocks - the resourceLocks where locks are stored

path - the path to the locked object

temporary - indicates if the LockedObject should be temporary or not

Method Detail

addLockedObjectOwner

public boolean addLockedObjectOwner(String owner)

adds a new owner to a lock

Parameters:

owner - string that represents the owner

Returns:

true if the owner was added, false otherwise

removeLockedObjectOwner

public void removeLockedObjectOwner(String owner)

tries to remove the owner from the lock

Parameters:

owner - string that represents the owner

addChild

public void addChild(LockedObject newChild)

adds a new child lock to this lock

Parameters:

newChild - new child

removeLockedObject

public void removeLockedObject()

deletes this Lock object. assumes that it has no children and no owners (does not check this itself)

removeTempLockedObject

public void removeTempLockedObject()

deletes this Lock object. assumes that it has no children and no owners (does not check this itself)

checkLocks

public boolean checkLocks(boolean exclusive,
                          int depth)

checks if a lock of the given exclusivity can be placed, only considering children up to "depth"

Parameters:

exclusive - wheather the new lock should be exclusive

depth - the depth to which should be checked

Returns:

true if the lock can be placed

refreshTimeout

public void refreshTimeout(int timeout)

Sets a new timeout for the LockedObject

Parameters:

timeout -

getTimeoutMillis

public long getTimeoutMillis()

Gets the timeout for the LockedObject

Returns:

timeout

hasExpired

public boolean hasExpired()

Return true if the lock has expired.

Returns:

true if timeout has passed

getID

public String getID()

Gets the LockID (locktoken) for the LockedObject

Returns:

locktoken

getOwner

public String[] getOwner()

Gets the owners for the LockedObject

Returns:

owners

getPath

public String getPath()

Gets the path for the LockedObject

Returns:

path

setExclusive

public void setExclusive(boolean exclusive)

Sets the exclusivity for the LockedObject

Parameters:

exclusive -

isExclusive

public boolean isExclusive()

Gets the exclusivity for the LockedObject

Returns:

exclusivity

isShared

public boolean isShared()

Gets the exclusivity for the LockedObject

Returns:

exclusivity

getType

public String getType()

Gets the type of the lock

Returns:

type

getLockDepth

public int getLockDepth()

Gets the depth of the lock

Returns:

depth