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public interface Lock
Field Summary | |
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static int |
NO_LOCK
|
static int |
READ_LOCK
|
static int |
WRITE_LOCK
|
Method Summary | |
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boolean |
acquire()
Acquire a lock for read. |
boolean |
acquire(int mode)
Acquire a lock for read or write. |
boolean |
attempt(int mode)
Attempt to acquire a lock for read or write. |
boolean |
isLockedForWrite()
Returns true if there are active or pending write locks. |
void |
release()
Release a lock. |
void |
release(int mode)
Release a lock of the specified type. |
Field Detail |
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static final int READ_LOCK
static final int WRITE_LOCK
static final int NO_LOCK
Method Detail |
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boolean acquire() throws LockException
LockException
boolean acquire(int mode) throws LockException
READ_LOCK
or
WRITE_LOCK
.
mode
-
LockException
boolean attempt(int mode)
mode
-
LockException
void release()
void release(int mode)
mode
- boolean isLockedForWrite()
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