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org.ematgine.utils.concurrent
Class SyncSet  

java.lang.Object
  org.ematgine.utils.concurrent.SyncCollection
      org.ematgine.utils.concurrent.SyncSet

All Implemented Interfaces:

java.util.Collection, java.lang.Iterable, java.util.Set

Direct Known Subclasses:

SyncSortedSet

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public class SyncSet

extends SyncCollection

implements java.util.Set

SyncSets wrap Sync-based control around java.util.Sets. They support two additional reader operations than do SyncCollection: hashCode and equals.

[ Introduction to this package. ]

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Nested Class Summary

 

Nested classes inherited from class org.ematgine.utils.concurrent.SyncCollection

SyncCollection.SyncCollectionIterator

 

Field Summary

 

Fields inherited from class org.ematgine.utils.concurrent.SyncCollection

c_, rd_, syncFailures_, wr_

 

Constructor Summary

SyncSet(java.util.Set set, ReadWriteLock rwl)           Create a new SyncSet protecting the given set, and using the given ReadWriteLock to control reader and writer methods.

SyncSet(java.util.Set set, Sync sync)           Create a new SyncSet protecting the given collection, and using the given sync to control both reader and writer methods.

SyncSet(java.util.Set set, Sync readLock, Sync writeLock)           Create a new SyncSet protecting the given set, and using the given pair of locks to control reader and writer methods.

 

Method Summary
boolean	equals(java.lang.Object o)           Compares the specified object to this for equality.
int	hashCode()           Returns the hash code for this set.

 

Methods inherited from class org.ematgine.utils.concurrent.SyncCollection

add, addAll, afterRead, beforeRead, clear, contains, containsAll, isEmpty, iterator, readerSync, remove, removeAll, retainAll, size, syncFailures, toArray, toArray, unprotectedIterator, writerSync

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

 

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

 

Constructor Detail

SyncSet

public SyncSet(java.util.Set set,
               Sync sync)

Create a new SyncSet protecting the given collection, and using the given sync to control both reader and writer methods. Common, reasonable choices for the sync argument include Mutex, ReentrantLock, and Semaphores initialized to 1.

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SyncSet

public SyncSet(java.util.Set set,
               ReadWriteLock rwl)

Create a new SyncSet protecting the given set, and using the given ReadWriteLock to control reader and writer methods.

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SyncSet

public SyncSet(java.util.Set set,
               Sync readLock,
               Sync writeLock)

Create a new SyncSet protecting the given set, and using the given pair of locks to control reader and writer methods.

Method Detail

hashCode

public int hashCode()

Description copied from interface: java.util.Set

Returns the hash code for this set. In order to satisfy the contract of equals, this is the sum of the hashcode of all elements in the set.

Specified by:

hashCode in interface java.util.Set

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equals

public boolean equals(java.lang.Object o)

Description copied from interface: java.util.Set

Compares the specified object to this for equality. For sets, the object must be a set, the two must have the same size, and every element in one must be in the other.

Specified by:

equals in interface java.util.Set

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