@InterfaceAudience.Private public class ZKInterProcessReadWriteLock extends Object implements InterProcessReadWriteLock
InterProcessReadWriteLock
. This lock is fair,
not reentrant, and not revocable.Constructor and Description |
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ZKInterProcessReadWriteLock(ZooKeeperWatcher zkWatcher,
String znode,
InterProcessLock.MetadataHandler handler)
Creates a DistributedReadWriteLock instance.
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Modifier and Type | Method and Description |
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ZKInterProcessReadLock |
readLock(byte[] metadata)
Obtain a read lock containing given metadata.
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ZKInterProcessWriteLock |
writeLock(byte[] metadata)
Obtain a write lock containing given metadata.
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public ZKInterProcessReadWriteLock(ZooKeeperWatcher zkWatcher, String znode, InterProcessLock.MetadataHandler handler)
zkWatcher
- znode
- ZNode path for the lockhandler
- An object that will handle de-serializing and processing
the metadata associated with reader or writer locks
created by this object or null if none desired.public ZKInterProcessReadLock readLock(byte[] metadata)
readLock
in interface InterProcessReadWriteLock
metadata
- Serialized lock metadata (this may contain information
such as the process owning the lock or the purpose for
which the lock was acquired).public ZKInterProcessWriteLock writeLock(byte[] metadata)
writeLock
in interface InterProcessReadWriteLock
metadata
- Serialized lock metadata (this may contain information
such as the process owning the lock or the purpose for
which the lock was acquired).Copyright © 2007–2019 The Apache Software Foundation. All rights reserved.