Package org.apache.solr.store.blockcache
Interface Cache
-
- All Known Implementing Classes:
BlockDirectoryCache
public interface Cache
- WARNING: This API is experimental and might change in incompatible ways in the next release.
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
delete(String name)
Remove a file from the cache.boolean
fetch(String name, long blockId, int blockOffset, byte[] b, int off, int lengthToReadInBlock)
Fetch the specified cache file content.void
releaseResources()
Release any resources associated with the cache.void
renameCacheFile(String source, String dest)
Expert: Rename the specified file in the cache.long
size()
Number of entries in the cache.void
update(String name, long blockId, int blockOffset, byte[] buffer, int offset, int length)
Update the content of the specified cache file.
-
-
-
Method Detail
-
delete
void delete(String name)
Remove a file from the cache.- Parameters:
name
- cache file name
-
update
void update(String name, long blockId, int blockOffset, byte[] buffer, int offset, int length)
Update the content of the specified cache file. Creates cache entry if necessary.
-
fetch
boolean fetch(String name, long blockId, int blockOffset, byte[] b, int off, int lengthToReadInBlock)
Fetch the specified cache file content.- Returns:
- true if cached content found, otherwise return false
-
size
long size()
Number of entries in the cache.
-
renameCacheFile
void renameCacheFile(String source, String dest)
Expert: Rename the specified file in the cache. Allows a file to be moved without invalidating the cache.- Parameters:
source
- original namedest
- final name
-
releaseResources
void releaseResources()
Release any resources associated with the cache.
-
-