Examples of tryLock()

• cn.com.manager.domains.Task.tryLock()
• com.alibaba.otter.shared.arbitrate.impl.zookeeper.lock.DistributedLock.tryLock()
  尝试获取锁对象, 不会阻塞 @throws InterruptedException @throws KeeperException
• com.alibaba.otter.shared.arbitrate.impl.zookeeper.lock.DistributedReentrantLock.tryLock()
• com.alimama.mdrill.utils.TryLockFile.trylock()
• com.google.jstestdriver.SlaveBrowser.tryLock()
• com.hazelcast.core.ILock.tryLock()
  {@inheritDoc}
• com.hazelcast.core.IMap.tryLock()
  Tries to acquire the lock for the specified key.

  If the lock is not available then the current thread doesn't wait and returns false immediately.

  Warning:

  This method uses hashCode and equals of binary form of the key, not the actual implementations of hashCode and equals defined in key's class. @param key key to lock. @return true if lock is acquired, false otherwise. @throws NullPointerException if the specified key is null
• com.hazelcast.core.MultiMap.tryLock()
  Tries to acquire the lock for the specified key.

  If the lock is not available then the current thread doesn't wait and returns false immediately.

  Warning:

  This method uses hashCode and equals of binary form of the key, not the actual implementations of hashCode and equals defined in key's class.

  @param key key to lock. @return true if lock is acquired, false otherwise.
• com.orientechnologies.orient.enterprise.channel.binary.OChannelBinaryAsynchClient.tryLock()
• com.packtpub.java7.concurrency.chapter7.recipe08.task.MyLock.tryLock()
  Method that try to acquire the lock. If it can, the method returns the true value. It it can't, the method return the false value
• edu.emory.mathcs.backport.java.util.concurrent.locks.Lock.tryLock()
  pulate protected state } finally { lock.unlock(); } } else { // perform alternative actions } This usage ensures that the lock is unlocked if it was acquired, and doesn't try to unlock if the lock was not acquired. @return true if the lock was acquired and falseotherwise.
• java.nio.channels.FileChannel.tryLock()
  Attempts to acquire an exclusive lock on this file without blocking.

  This is a convenience method for attempting to acquire a maximum length lock on the file. It is equivalent to:

   fileChannel.tryLock(0L, Long.MAX_VALUE, false) 

  The method returns null if the acquisition would result in an overlapped lock with another OS process.

  @return the file lock object, or null if the lock wouldoverlap an existing exclusive lock in another OS process. @throws ClosedChannelException the file channel is closed. @throws OverlappingFileLockException Either a lock is already held that overlaps this lock request, or another thread is waiting to acquire a lock that will overlap with this request. @throws IOException if any I/O error occurs
• java.util.concurrent.locks.Lock.tryLock()
  pulate protected state } finally { lock.unlock(); } } else { // perform alternative actions }} This usage ensures that the lock is unlocked if it was acquired, and doesn't try to unlock if the lock was not acquired. @return {@code true} if the lock was acquired and{@code false} otherwise
• java.util.concurrent.locks.ReentrantLock.tryLock()
  Acquires the lock only if it is not held by another thread at the time of invocation.

  Acquires the lock if it is not held by another thread and returns immediately with the value {@code true}, setting the lock hold count to one. Even when this lock has been set to use a fair ordering policy, a call to {@code tryLock()} willimmediately acquire the lock if it is available, whether or not other threads are currently waiting for the lock. This "barging" behavior can be useful in certain circumstances, even though it breaks fairness. If you want to honor the fairness setting for this lock, then use {@link #tryLock(long,TimeUnit) tryLock(0, TimeUnit.SECONDS) }which is almost equivalent (it also detects interruption).

  If the current thread already holds this lock then the hold count is incremented by one and the method returns {@code true}.

  If the lock is held by another thread then this method will return immediately with the value {@code false}. @return {@code true} if the lock was free and was acquired by thecurrent thread, or the lock was already held by the current thread; and {@code false} otherwise

• java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock.tryLock()
• java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock.tryLock()
• nallar.tickthreading.util.concurrent.SimpleMutex.tryLock()
• net.sf.ehcache.concurrent.Sync.tryLock()
  Tries to acquire a LockType.READ or WRITE for a certain period @param type the lock type to acquire @param msec timeout @return true if the lock got acquired, false otherwise @throws InterruptedException Should the thread be interrupted
• net.sf.ehcache.transaction.SoftLock.tryLock()
  Attempt to lock the soft lock @param ms the time in milliseconds before this method gives up @return true if the soft lock was locked, false otherwise @throws InterruptedException if the thread calling this method was interrupted
• org.apache.accumulo.core.zookeeper.ZooLock.tryLock()
• org.apache.accumulo.server.zookeeper.ZooLock.tryLock()
• org.apache.lucene.index.DocumentsWriterPerThreadPool.ThreadState.tryLock()
• org.eclipse.orion.server.core.resources.FileLocker.tryLock()
  Try and lock the file. Return true if it now has the lock, and false if it did not acquire the lock.

  If this acquires the lock on the file, the caller must use {@link #release()} to release the lock.

  @return true if it acquired the lock, false otherwise. @throws IOException
• org.h2.store.fs.FileObject.tryLock()
  Try to lock the file exclusively. @return true if locking was successful
• org.jboss.as.ejb3.tx.OwnableReentrantLock.tryLock()
• org.odmg.Transaction.tryLock()
  Upgrade the lock on the given object to the given lock mode. Method tryLock is the same as lock except it returns a boolean indicating whether the lock was granted instead of generating an exception. @param obj The object to acquire a lock on. @param lockMode The lock mode to acquire. The lock modes are READ,UPGRADE, and WRITE. @return True if the lock has been acquired, otherwise false.
• org.openrdf.sail.helpers.DirectoryLockManager.tryLock()
  Creates a lock in a directory if it does not yet exist. @return a newly acquired lock or null if the directory is already locked.
• org.openrdf.sail.rdbms.util.DatabaseLockManager.tryLock()

Examples of org.odmg.Transaction.tryLock()

Examples of org.openrdf.sail.helpers.DirectoryLockManager.tryLock()

Examples of org.openrdf.sail.rdbms.util.DatabaseLockManager.tryLock()