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java.lang.Objectorg.apache.openjpa.kernel.AbstractLockManager
org.apache.openjpa.kernel.NoneLockManager
public class NoneLockManager
A lock manager that does not perform any locking.
| Field Summary |
|---|
| Fields inherited from class org.apache.openjpa.kernel.AbstractLockManager |
|---|
ctx, log |
| Fields inherited from interface org.apache.openjpa.kernel.LockLevels |
|---|
LOCK_NONE, LOCK_READ, LOCK_WRITE |
| Constructor Summary | |
|---|---|
NoneLockManager()
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|
| Method Summary | |
|---|---|
int |
getLockLevel(OpenJPAStateManager sm)
Return the lock level of the specified instance, or LockLevels.LOCK_NONE if not locked. |
void |
lock(OpenJPAStateManager sm,
int level,
int timeout,
java.lang.Object context)
Obtain a lock on the specified object. |
void |
release(OpenJPAStateManager sm)
Release the lock on the given object. |
| Methods inherited from class org.apache.openjpa.kernel.AbstractLockManager |
|---|
beginTransaction, close, endTransaction, getContext, lockAll, setContext |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public NoneLockManager()
| Method Detail |
|---|
public void lock(OpenJPAStateManager sm,
int level,
int timeout,
java.lang.Object context)
LockManager
sm - the object to locklevel - one of the lock constants defined in LockLevels,
or a custom leveltimeout - the timeout in milliseconds, or a negative number for
no timeoutcontext - the context information passed from the store manager
to the persistence context, if any; lock managers
specific to a certain back end may be able to take
advantage of this; others should ignore itOpenJPAStateManager.setLock(java.lang.Object)public void release(OpenJPAStateManager sm)
LockManagerLockManager.endTransaction().
The lock manager should null the state manager's lock object. Note
that some state manager may be garbage collected during a transaction;
thus lock managers cannot rely on this method being called for every
state manager.
OpenJPAStateManager.setLock(java.lang.Object)public int getLockLevel(OpenJPAStateManager sm)
LockManagerLockLevels.LOCK_NONE if not locked.
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