/**
* Remove an existing mapping from the cache.
*
* @param parentPathId The parent's path (directory) ID number.
* @param childPathName The name of the path within the parent's directory
*/
public void remove(int parentPathId, String childPathName) {
PathNameCacheKey key = new PathNameCacheKey(parentPathId, childPathName);
map.remove(key);
}
/**
* Given a parent Path ID number and the child's path name look up the value in the cache.
*
* @param parentPathId The parent's path (directory) ID number.
* @param childPathName The name of the path within the parent's directory
* @return a PathNameCacheValue object containing the cache mapping, or null if the mapping isn't
* in the cache.
*/
public PathNameCacheValue get(int parentPathId, String childPathName) {
PathNameCacheKey key = new PathNameCacheKey(parentPathId, childPathName);
return map.get(key);
}
/**
* Add a new mapping to the cache.
*
* @param parentPathId The parent's path ID (actually, a directory ID).
* @param childPathName The name of the path within that parent's directory.
* @param childPathId The child's path ID to be used as the target of the mapping.
* @param childType What type is the child (file, directory, etc), to be used as the target of the
* mapping.
*/
public void put(int parentPathId, String childPathName, int childPathId, int childType) {
PathNameCacheKey key = new PathNameCacheKey(parentPathId, childPathName);
PathNameCacheValue value = new PathNameCacheValue(childPathId, childType);
map.put(key, value);
}
/** Clear the cache, removing all stored items and reseting the size to 0. */
public void clear() {
map.clear();
}