net.tomp2p.storage
Interface Digest

All Known Implementing Classes:

Storage, StorageDisk, StorageMemory, TrackerStorage

public interface Digest

The storage stores Number480, which is separated in 3 Number160. The first Number160 is the location key, the second is the domain key, and the third is the content key. A digest can be calculated over all content keys for a specific location and domain. The digest can also be calculated over a selected range of content keys for a specific location and domain.

Author:

Thomas Bocek

Method Summary

DigestInfo	digest(Number320 key) Calculates a digest over a specific location and domain.
DigestInfo	digest(Number320 key, Collection<Number160> contentKeys) Calculates a digest over a specific location and domain.

Method Detail

digest

DigestInfo digest(Number320 key)

Calculates a digest over a specific location and domain. It will return those content keys that are stored.

Parameters:

key - The location and domain key

Returns:

A list of all hashes for the content keys. To return a predictable amount (important for routing), the hashes can be xored.

digest

DigestInfo digest(Number320 key,
                  Collection<Number160> contentKeys)

Calculates a digest over a specific location and domain. It will return those content keys that are stored. Those keys that are not stored are ignored

Parameters:

key - The location and domain key

contentKeys - The content keys to look for. Those keys that are not found are ignored.

Returns:

A list of all hashes for the content keys. To return a predictable amount (important for routing), the hashes can be xored.