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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.0) E13403-08 |
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java.lang.Object oracle.javatools.buffer.MultiLock
public final class MultiLock
Acquires and releases a set of ReadWriteLock
as a unit. Ensures
that locks are always taken in a consistent order to avoid lock ordering
deadlocks.
Method Summary | |
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static MultiLock |
get(java.util.Collection<ReadWriteLock> read,
java.util.Collection<ReadWriteLock> write)
Get a lock instance which obtains a mixture of read and write locks. |
static MultiLock |
getCopyLock(ReadWriteLock src,
ReadWriteLock dest)
Get an instance suitable for copying from a source to a destination. |
static MultiLock |
getReadLock(ReadWriteLock... locks)
Get an instance which obtains read locks. |
static MultiLock |
getWriteLock(ReadWriteLock... locks)
Get an instance which obtains write locks. |
void |
lock()
Acquire the locks. |
boolean |
tryLock()
Acquires the lock if it is possible to do so without blocking. |
void |
unlock()
Release the locks. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static MultiLock getReadLock(ReadWriteLock... locks)
locks
- the locks to be locked for reading
public static MultiLock getWriteLock(ReadWriteLock... locks)
locks
- the locks to be locked for writing
public static MultiLock getCopyLock(ReadWriteLock src, ReadWriteLock dest)
src
- the source lockdest
- the destination lock
public static MultiLock get(java.util.Collection<ReadWriteLock> read, java.util.Collection<ReadWriteLock> write)
read
- the locks to be locked for readingwrite
- the locks to be locked for writing
public void lock()
public boolean tryLock()
true
if the lock was acquired, false
otherwisepublic void unlock()
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.0) E13403-08 |
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