org.jpox.cache
Class SoftRefCache
java.lang.Object
org.jpox.cache.SoftRefCache
- All Implemented Interfaces:
- Level1Cache, java.util.Map
- public class SoftRefCache
- extends java.lang.Object
- implements Level1Cache
Level 1 Cache using Soft referenced objects in a Map.
If map entry value object is not actively being used, i.e. no other
object has a strong reference to it, it may become garbage collected at
the discretion of the garbage collector (typically if the VM is low on
memory). If this happens, the entry in the SoftValueMap
corresponding to the value object will also be removed.
- Version:
- $Revision: 1.4 $
- See Also:
SoftReference
Nested classes inherited from class java.util.Map |
java.util.Map.Entry |
Constructor Summary |
SoftRefCache()
Default constructor (required) |
Method Summary |
void |
clear()
|
boolean |
containsKey(java.lang.Object key)
|
boolean |
containsValue(java.lang.Object value)
|
java.util.Set |
entrySet()
|
java.lang.Object |
get(java.lang.Object key)
|
boolean |
isEmpty()
|
java.util.Set |
keySet()
|
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value)
|
void |
putAll(java.util.Map t)
|
java.lang.Object |
remove(java.lang.Object key)
|
int |
size()
|
java.util.Collection |
values()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.util.Map |
equals, hashCode |
SoftRefCache
public SoftRefCache()
- Default constructor (required)
put
public java.lang.Object put(java.lang.Object key,
java.lang.Object value)
- Specified by:
put
in interface java.util.Map
get
public java.lang.Object get(java.lang.Object key)
- Specified by:
get
in interface java.util.Map
containsKey
public boolean containsKey(java.lang.Object key)
- Specified by:
containsKey
in interface java.util.Map
remove
public java.lang.Object remove(java.lang.Object key)
- Specified by:
remove
in interface java.util.Map
clear
public void clear()
- Specified by:
clear
in interface java.util.Map
containsValue
public boolean containsValue(java.lang.Object value)
- Specified by:
containsValue
in interface java.util.Map
entrySet
public java.util.Set entrySet()
- Specified by:
entrySet
in interface java.util.Map
isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interface java.util.Map
keySet
public java.util.Set keySet()
- Specified by:
keySet
in interface java.util.Map
putAll
public void putAll(java.util.Map t)
- Specified by:
putAll
in interface java.util.Map
size
public int size()
- Specified by:
size
in interface java.util.Map
values
public java.util.Collection values()
- Specified by:
values
in interface java.util.Map
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