Spring for Android

org.springframework.util
Class ConcurrentReferenceHashMap.ReferenceManager

java.lang.Object
  extended by org.springframework.util.ConcurrentReferenceHashMap.ReferenceManager
Enclosing class:
ConcurrentReferenceHashMap<K,V>

protected class ConcurrentReferenceHashMap.ReferenceManager
extends java.lang.Object

Strategy class used to manage ConcurrentReferenceHashMap.References. This class can be overridden if alternative reference types need to be supported.


Constructor Summary
protected ConcurrentReferenceHashMap.ReferenceManager()
           
 
Method Summary
 ConcurrentReferenceHashMap.Reference<K,V> createReference(ConcurrentReferenceHashMap.Entry<K,V> entry, int hash, ConcurrentReferenceHashMap.Reference<K,V> next)
          Factory method used to create a new ConcurrentReferenceHashMap.Reference.
 ConcurrentReferenceHashMap.Reference<K,V> pollForPurge()
          Return any reference that has been garbage collected and can be purged from the underlying structure or null if no references need purging.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ConcurrentReferenceHashMap.ReferenceManager

protected ConcurrentReferenceHashMap.ReferenceManager()
Method Detail

createReference

public ConcurrentReferenceHashMap.Reference<K,V> createReference(ConcurrentReferenceHashMap.Entry<K,V> entry,
                                                                 int hash,
                                                                 ConcurrentReferenceHashMap.Reference<K,V> next)
Factory method used to create a new ConcurrentReferenceHashMap.Reference.

Parameters:
entry - the entry contained in the reference
hash - the hash
next - the next reference in the chain or null
Returns:
a new ConcurrentReferenceHashMap.Reference

pollForPurge

public ConcurrentReferenceHashMap.Reference<K,V> pollForPurge()
Return any reference that has been garbage collected and can be purged from the underlying structure or null if no references need purging. This method must be thread safe and ideally should not block when returning null. References should be returned once and only once.

Returns:
a reference to purge or null

Spring for Android