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java.lang.Object org.jboss.cache.lock.LockMap
public class LockMap
Provide lock ownership mapping.
Field Summary | |
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static int |
OWNER_ANY
|
static int |
OWNER_READ
|
static int |
OWNER_WRITE
|
Constructor Summary | |
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LockMap()
|
|
LockMap(Collection<Object> readOwners)
This constructor is made available for testing with different collection types for the readOwners collection. |
Method Summary | |
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void |
addReader(Object owner)
Adding a reader owner. |
boolean |
isOwner(Object caller,
int ownership)
Check whether this owner has reader or writer ownership. |
boolean |
isReadLocked()
|
String |
printInfo()
Debugging information. |
Collection<Object> |
readerOwners()
Returns an unmodifiable set of reader owner objects. |
void |
releaseReaderOwners(LockStrategy lock)
|
void |
removeAll()
Remove all ownership. |
void |
removeReader(Object owner)
Remove reader ownership. |
void |
removeWriter()
Remove writer ownership. |
void |
setWriterIfNotNull(Object owner)
Adding a writer owner. |
boolean |
upgrade(Object owner)
Upgrading current reader ownership to writer one. |
Object |
writerOwner()
|
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int OWNER_ANY
public static final int OWNER_READ
public static final int OWNER_WRITE
Constructor Detail |
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public LockMap()
public LockMap(Collection<Object> readOwners)
readOwners
- Method Detail |
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public boolean isOwner(Object caller, int ownership)
caller
- the potential owner. Cannot be null
.ownership
- Either OWNER_ANY
, OWNER_READ
,
or OWNER_WRITE
.
NullPointerException
- if caller
is null
.public void addReader(Object owner)
owner
- public void setWriterIfNotNull(Object owner)
owner
- public boolean upgrade(Object owner) throws OwnerNotExistedException
owner
-
OwnerNotExistedException
public Collection<Object> readerOwners()
public void releaseReaderOwners(LockStrategy lock)
public Object writerOwner()
public void removeReader(Object owner)
public void removeWriter()
public void removeAll()
public String printInfo()
public boolean isReadLocked()
|
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