Package com.inductiveautomation.ignition.common.sqltags.history.cache

Class CacheKey

java.lang.Object

com.inductiveautomation.ignition.common.sqltags.history.cache.CacheKey

public class CacheKey
extends Object

This key is our "first layer". It is a key for the hash table that maps parameters that we require to be equal to SubCaches, which represent parameters that we allow to be different or "fuzzy". By separating these ideas out, we can be more efficient- map for required values, and then search for fuzzy matches.

Right now, we only allow the time range to be fuzzy. Later we may allow the tags to be as well, so we can get a hit when we query for a sub-set of already cached tags.

Field Summary

Fields

Modifier and Type	Field	Description
protected TagHistoryQueryParams	params

Constructor Summary

Constructors

Constructor	Description
CacheKey(TagHistoryQueryParams params)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

params

protected TagHistoryQueryParams params

Constructor Details

CacheKey

public CacheKey(TagHistoryQueryParams params)

Method Details

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object