org.calrissian.accumulorecipes.lastn

Interface LastNStore

All Known Implementing Classes:

AccumuloLastNStore

public interface LastNStore

The LastN store is a version-based eviction mechanism- meaning that it will only keep around the last N versions of an indexed set of attributes but it will maintain cell-level security of those attributes. This is useful in news feeds and places where it's important to know the 'most recent' history of something.

Method Summary

Methods

Modifier and Type	Method and Description
void	flush()
Iterable<org.calrissian.mango.domain.event.Event>	get(String group, Auths auths) Returns the last N store entries under the specified group- starting with the most recent.
void	put(String group, org.calrissian.mango.domain.event.Event entry) Puts a StoreEntry into the Last N store under the specified grouping.

Method Detail

put

void put(String group,
       org.calrissian.mango.domain.event.Event entry)

Puts a StoreEntry into the Last N store under the specified grouping. The Last N items returned are all grouped by the group value.

Parameters:

group -

entry -

flush

void flush()
           throws Exception

Throws:

Exception

get

Iterable<org.calrissian.mango.domain.event.Event> get(String group,
                                                    Auths auths)

Returns the last N store entries under the specified group- starting with the most recent.

Parameters:

group -

auths -

Returns: