org.openstreetmap.josm.data.cache

Interface ICachedLoaderJob<K>

Type Parameters:

K - cache key type

All Known Implementing Classes:

JCSCachedTileLoaderJob, TMSCachedTileLoaderJob, WMSCachedTileLoaderJob

public interface ICachedLoaderJob<K>

Method Summary

Modifier and Type	Method and Description
CacheEntry	get() fetches object from cache, or returns null when object is not found
K	getCacheKey() returns cache entry key
URL	getUrl() method to get download URL for Job
void	run() implements the main algorithm for fetching
void	submit(ICachedLoaderListener listener, boolean force) Submit job for background fetch, and listener will be fed with value object

Method Detail

getCacheKey

K getCacheKey()

returns cache entry key

Returns:

cache key for tile

getUrl

URL getUrl()
    throws IOException

method to get download URL for Job

Returns:

URL that should be fetched

Throws:

IOException - when could not determine the URL of the tile

run

void run()

implements the main algorithm for fetching

get

CacheEntry get()

fetches object from cache, or returns null when object is not found

Returns:

filled tile with data or null when no cache entry found

submit

void submit(ICachedLoaderListener listener,
            boolean force)
     throws IOException

Submit job for background fetch, and listener will be fed with value object

Parameters:

listener - cache loader listener

force - true if the load should skip all the caches (local & remote)

Throws:

IOException - on failure from getUrl() call