de.ls5.jlearn.interfaces
Interface Cache

All Superinterfaces:

Oracle, Serializable

All Known Implementing Classes:

CacheOracle

public interface Cache
extends Oracle

A cache records queries and corresponding answers. Queries which are already included in the cache will be answered by the cached response, saving queries to the actual target system.

Author:

merten

Method Summary

void	addEntry(Word query, Word answer) Adds a query/answer pair to the cache
boolean	isCached(Word trace) Checks if a given query is already included in the cache
void	setOracle(Oracle o) Specifies Oracle to be called if a cache-miss is encountered

Methods inherited from interface de.ls5.jlearn.interfaces.Oracle

processQuery

Method Detail

addEntry

void addEntry(Word query,
              Word answer)
              throws ObservationConflictException

Adds a query/answer pair to the cache

Parameters:

query - query to be cached

answer - response for the query to be cached

Throws:

ObservationConflictException - will be thrown if the query is already included in the cache, but with a different answer

isCached

boolean isCached(Word trace)

Checks if a given query is already included in the cache

Parameters:

trace - query to be checked

Returns:

boolean value indicating if the provided query would give a cache hit

setOracle

void setOracle(Oracle o)

Specifies Oracle to be called if a cache-miss is encountered

Parameters:

o - Oracle to be consulted if a query is not included in the cache