Package io.featureflow.client.model

Class Rule

java.lang.Object

io.featureflow.client.model.Rule

public class Rule
extends Object

A Rule holds and Audience (Who to show to) and a list of VariantSplits (what to show them)

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ANONYMOUS

Constructor Summary

Constructors

Constructor	Description
Rule()

Method Summary

Modifier and Type	Method	Description
Audience	getAudience()
String	getHash(String userId, String featureKey, String salt)	Generate the Variant value using sha1hex 1.
String	getSplitKey(long variantValue)
String	getVariantSplitKey(String userId, String featureKey, String salt)
List<VariantSplit>	getVariantSplits()
long	getVariantValue(String hash)
boolean	matches(FeatureflowUser user)
void	setAudience(Audience audience)
void	setVariantSplits(List<VariantSplit> variantSplits)

Methods inherited from class java.lang.Object

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

Field Details

ANONYMOUS

public static final String ANONYMOUS

See Also:

• Constant Field Values

Constructor Details

Rule

public Rule()

Method Details

setAudience

public void setAudience(Audience audience)

getAudience

public Audience getAudience()

getVariantSplits

public List<VariantSplit> getVariantSplits()

setVariantSplits

public void setVariantSplits(List<VariantSplit> variantSplits)

matches

public boolean matches(FeatureflowUser user)

getVariantSplitKey

public String getVariantSplitKey(String userId,
 String featureKey,
 String salt)

getSplitKey

public String getSplitKey(long variantValue)

getHash

public String getHash(String userId,
 String featureKey,
 String salt)

Generate the Variant value using sha1hex 1. We generate an equally distributed string of hex values, parse it to a length of 15, thats the max we can get before we blow out of the long range (fffffffffffffff)16 = (1152921504606846975)10 2. We turn that hex into its representative number 3. We find the remainder from 100 and use that as our variant bucket

Parameters:

userId - - the users unique identifier key or bucket key

featureKey - - The feature key we are testing

salt - - A salt value

Returns:

hash - the hashed value

getVariantValue

public long getVariantValue(String hash)