Changes between Version 11 and Version 12 of SharedTileCache

Timestamp:

2014-03-24T14:38:36+01:00 (12 years ago)

Author:

wavexx

Comment:

--

SharedTileCache

@@ -110 +110 @@
 When the cache size is defined as -1, applications '''must not''' include any additional content into the cache, but are free to query it.
 
-=== Known tile metadata keys ===
+== Tile metadata ==
 
- etag:: ETag header as returned by the server (used by JOSM for tile caching).
+Tile metadata can be used for any purpose where storing additional information for each tile can be useful. As such, the following keys are defined to be known:
+
+ etag:: ETag as returned by the server (used for querying servers that don't support If-Modified-Since).
+
+Tile metadata can also be useful to store information about tile usage (view count) to improve usage-based cache pruning, though no keys are standardized for this behavior yet.
 
 == Concurrent access ==