org.objectweb.medor.eval.prefetch.lib
Class PrefetchCacheImpl
java.lang.Object
|
+--org.objectweb.medor.eval.prefetch.lib.PrefetchCacheImpl
- All Implemented Interfaces:
- PrefetchCache
- public class PrefetchCacheImpl
- extends java.lang.Object
- implements PrefetchCache
- Author:
- P. Dechamboux
Method Summary |
PrefetchBuffer |
createPrefetchBuffer(java.lang.Object cat,
java.lang.Object ctxt,
int indexpos)
Allocates a prefetched buffer for the object category and the connection
context in order to register prefetched tuples. |
Tuple |
getPrefetchTuple(java.lang.Object index,
java.lang.Object cat,
java.lang.Object ctxt)
Retrieves the prefetched tuple from this cache associated with this
index information, within the given caching context. |
void |
invalidatePrefetchBuffer(java.lang.Object ctxt)
Invalidates all the prefetched tuples that are associated with the given
caching connection context. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PrefetchCacheImpl
public PrefetchCacheImpl()
getPrefetchTuple
public Tuple getPrefetchTuple(java.lang.Object index,
java.lang.Object cat,
java.lang.Object ctxt)
throws MedorException
- Description copied from interface:
PrefetchCache
- Retrieves the prefetched tuple from this cache associated with this
index information, within the given caching context. The prefetched tuple
also belongs to the given object category.
- Specified by:
getPrefetchTuple
in interface PrefetchCache
- Parameters:
index
- The index that allows the yielded prefetched data item to be
identified into the cache.cat
- The category (e.g., class) to which the objects, that can be
built using the prefetched data, belong to.ctxt
- The caching context within which the data has been
prefetched.
- Returns:
- The prefetched tuple.
MedorException
invalidatePrefetchBuffer
public void invalidatePrefetchBuffer(java.lang.Object ctxt)
- Description copied from interface:
PrefetchCache
- Invalidates all the prefetched tuples that are associated with the given
caching connection context.
- Specified by:
invalidatePrefetchBuffer
in interface PrefetchCache
- Parameters:
ctxt
- The invalid caching context.
createPrefetchBuffer
public PrefetchBuffer createPrefetchBuffer(java.lang.Object cat,
java.lang.Object ctxt,
int indexpos)
throws MedorException
- Description copied from interface:
PrefetchCache
- Allocates a prefetched buffer for the object category and the connection
context in order to register prefetched tuples.
- Specified by:
createPrefetchBuffer
in interface PrefetchCache
- Parameters:
cat
- The associated object category.ctxt
- The associated caching context.indexpos
- The position of the index field within the prefetched
tuples.
- Returns:
- The allocated PrefetchBuffer.
MedorException