Java Doc for SyncMap.java in  » Ajax » Laszlo-4.0.10 » EDU » oswego » cs » dl » util » concurrent » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » Laszlo 4.0.10 » EDU.oswego.cs.dl.util.concurrent 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   EDU.oswego.cs.dl.util.concurrent.SyncMap

All known Subclasses:   EDU.oswego.cs.dl.util.concurrent.SyncSortedMap,
SyncMap
public class SyncMap implements Map(Code)
SyncMaps wrap Sync-based control around java.util.Maps. They operate in the same way as SyncCollection.

Reader operations are

  • size
  • isEmpty
  • get
  • containsKey
  • containsValue
  • keySet
  • entrySet
  • values
Writer operations are:
  • put
  • putAll
  • remove
  • clear

[ Introduction to this package. ]
See Also:   SyncCollection



Field Summary
final protected  Mapc_
    
final protected  Syncrd_
    
final protected  SynchronizedLongsyncFailures_
    
final protected  Syncwr_
    

Constructor Summary
public  SyncMap(Map map, Sync sync)
     Create a new SyncMap protecting the given map, and using the given sync to control both reader and writer methods.
public  SyncMap(Map map, ReadWriteLock rwl)
     Create a new SyncMap protecting the given map, and using the given ReadWriteLock to control reader and writer methods.
public  SyncMap(Map map, Sync readLock, Sync writeLock)
     Create a new SyncMap protecting the given map, and using the given pair of locks to control reader and writer methods.

Method Summary
protected  voidafterRead(boolean wasInterrupted)
    
protected  booleanbeforeRead()
    
public  voidclear()
    
public  booleancontainsKey(Object o)
    
public  booleancontainsValue(Object o)
    
public  SetentrySet()
    
public  booleanequals(Object o)
    
public  Objectget(Object key)
    
public  inthashCode()
    
public  booleanisEmpty()
    
public  SetkeySet()
    
public  Objectput(Object key, Object value)
    
public  voidputAll(Map coll)
    
public  SyncreaderSync()
    
public  Objectremove(Object key)
    
public  intsize()
    
public  longsyncFailures()
    
public  Collectionvalues()
    
public  SyncwriterSync()
    

Field Detail
c_
final protected Map c_(Code)



rd_
final protected Sync rd_(Code)



syncFailures_
final protected SynchronizedLong syncFailures_(Code)



wr_
final protected Sync wr_(Code)




Constructor Detail
SyncMap
public SyncMap(Map map, Sync sync)(Code)
Create a new SyncMap protecting the given map, 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.



SyncMap
public SyncMap(Map map, ReadWriteLock rwl)(Code)
Create a new SyncMap protecting the given map, and using the given ReadWriteLock to control reader and writer methods.



SyncMap
public SyncMap(Map map, Sync readLock, Sync writeLock)(Code)
Create a new SyncMap protecting the given map, and using the given pair of locks to control reader and writer methods.




Method Detail
afterRead
protected void afterRead(boolean wasInterrupted)(Code)
Clean up after a reader operation *



beforeRead
protected boolean beforeRead()(Code)
Try to acquire sync before a reader operation; record failure *



clear
public void clear()(Code)



containsKey
public boolean containsKey(Object o)(Code)



containsValue
public boolean containsValue(Object o)(Code)



entrySet
public Set entrySet()(Code)



equals
public boolean equals(Object o)(Code)



get
public Object get(Object key)(Code)



hashCode
public int hashCode()(Code)



isEmpty
public boolean isEmpty()(Code)



keySet
public Set keySet()(Code)



put
public Object put(Object key, Object value)(Code)



putAll
public void putAll(Map coll)(Code)



readerSync
public Sync readerSync()(Code)
Return the Sync object managing read-only operations



remove
public Object remove(Object key)(Code)



size
public int size()(Code)



syncFailures
public long syncFailures()(Code)
Return the number of synchronization failures for read-only operations



values
public Collection values()(Code)



writerSync
public Sync writerSync()(Code)
Return the Sync object managing mutative operations



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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