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java.lang.Objectcom.j256.ormlite.dao.ReferenceObjectCache
public class ReferenceObjectCache
Cache for ORMLite which stores objects with a WeakReference
or SoftReference
to them. Java Garbage
Collection can then free these objects if no one has a "strong" reference to the object (weak) or if it runs out of
memory (soft).
Constructor Summary | |
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ReferenceObjectCache(boolean useWeak)
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Method Summary | ||
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cleanNullReferences(Class<T> clazz)
Run through the map and remove any references that have been null'd out by the GC. |
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cleanNullReferencesAll()
Run through all maps and remove any references that have been null'd out by the GC. |
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clear(Class<T> clazz)
Remove all entries from the cache of a certain class. |
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void |
clearAll()
Remove all entries from the cache of all classes. |
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get(Class<T> clazz,
ID id)
Lookup in the cache for an object of a certain class that has a certain id. |
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static ReferenceObjectCache |
makeSoftCache()
Create and return an object cache using SoftReference . |
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static ReferenceObjectCache |
makeWeakCache()
Create and return an object cache using WeakReference . |
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put(Class<T> clazz,
ID id,
T data)
Put an object in the cache that has a certain class and id. |
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registerClass(Class<T> clazz)
Register a class for use with this class. |
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remove(Class<T> clazz,
ID id)
Delete from the cache an object of a certain class that has a certain id. |
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size(Class<T> clazz)
Return the number of elements in the cache. |
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int |
sizeAll()
Return the number of elements in all of the caches. |
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updateId(Class<T> clazz,
ID oldId,
ID newId)
Change the id in the cache for an object of a certain class from an old-id to a new-id. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ReferenceObjectCache(boolean useWeak)
useWeak
- Set to true if you want the cache to use WeakReference
. If false then the cache will use
SoftReference
.Method Detail |
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public static ReferenceObjectCache makeWeakCache()
WeakReference
.
public static ReferenceObjectCache makeSoftCache()
SoftReference
.
public <T> void registerClass(Class<T> clazz)
ObjectCache
registerClass
in interface ObjectCache
public <T,ID> T get(Class<T> clazz, ID id)
ObjectCache
get
in interface ObjectCache
public <T,ID> void put(Class<T> clazz, ID id, T data)
ObjectCache
put
in interface ObjectCache
public <T> void clear(Class<T> clazz)
ObjectCache
clear
in interface ObjectCache
public void clearAll()
ObjectCache
clearAll
in interface ObjectCache
public <T,ID> void remove(Class<T> clazz, ID id)
ObjectCache
remove
in interface ObjectCache
public <T,ID> T updateId(Class<T> clazz, ID oldId, ID newId)
ObjectCache
updateId
in interface ObjectCache
public <T> int size(Class<T> clazz)
ObjectCache
size
in interface ObjectCache
public int sizeAll()
ObjectCache
sizeAll
in interface ObjectCache
public <T> void cleanNullReferences(Class<T> clazz)
public <T> void cleanNullReferencesAll()
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