Skip navigation links

com.tangosol.util
Class MultiBinaryLongMap.ChainedLock

java.lang.Object
com.tangosol.util.MultiBinaryLongMap.ChainedLock

All Implemented Interfaces:

java.util.concurrent.locks.Lock

Enclosing class:

MultiBinaryLongMap

protected static class MultiBinaryLongMap.ChainedLock

extends java.lang.Object

implements java.util.concurrent.locks.Lock

A ChainedLock is a Lock implementation that represents a composition of two component locks, parent and child. All operations on this lock will first be performed on the parent lock, and only upon successful completion be performed on the child lock.

A ChainedLock could be used to manage multiple logical levels of concurrency control across multiple components without exposing multiple resource locks and thus imposing a locking order that reduces the possibility of introducing deadlocks.

Note: a ChainedLock could be used to represent a chain of more than two Locks by constructing a "chain of chains".

Field Summary

protected java.util.concurrent.locks.Lock	f_lockChild The "child" constituent lock.
protected java.util.concurrent.locks.Lock	f_lockParent The "parent" constituent lock.

Constructor Summary

MultiBinaryLongMap.ChainedLock(java.util.concurrent.locks.Lock lockParent, java.util.concurrent.locks.Lock lockChild)
Construct a new ChainedLock composed of the specified parent and child locks.

Method Summary

void	lock()
void	lockInterruptibly()
java.util.concurrent.locks.Condition	newCondition()
boolean	tryLock()
boolean	tryLock(long cTime, java.util.concurrent.TimeUnit unit)
void	unlock()

Field Detail

f_lockParent

protected final java.util.concurrent.locks.Lock f_lockParent

The "parent" constituent lock.

f_lockChild

protected final java.util.concurrent.locks.Lock f_lockChild

The "child" constituent lock.

Constructor Detail

MultiBinaryLongMap.ChainedLock

public MultiBinaryLongMap.ChainedLock(java.util.concurrent.locks.Lock lockParent,
                                      java.util.concurrent.locks.Lock lockChild)

Construct a new ChainedLock composed of the specified parent and child locks.

Parameters:

lockParent - the parent lock

lockChild - the child lock

Method Detail

lock

public void lock()

Specified by:

lock in interface java.util.concurrent.locks.Lock

lockInterruptibly

public void lockInterruptibly()
                       throws java.lang.InterruptedException

Specified by:

lockInterruptibly in interface java.util.concurrent.locks.Lock

Throws:

java.lang.InterruptedException

tryLock

public boolean tryLock()

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

tryLock

public boolean tryLock(long cTime,
                       java.util.concurrent.TimeUnit unit)
                throws java.lang.InterruptedException

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

Throws:

java.lang.InterruptedException

unlock

public void unlock()

Specified by:

unlock in interface java.util.concurrent.locks.Lock

newCondition

public java.util.concurrent.locks.Condition newCondition()

Specified by:

newCondition in interface java.util.concurrent.locks.Lock

Skip navigation links