Record Class TtlDecayPolicy.ExponentialDecay

java.lang.Object

java.lang.Record

cloud.opencode.base.cache.ttl.TtlDecayPolicy.ExponentialDecay

Record Components:

initialTtl - the initial TTL | 初始过期时间

minimumTtl - the minimum TTL | 最小过期时间

decayFactor - the decay factor (0 to 1 exclusive) | 衰减因子（0到1之间）

All Implemented Interfaces:

TtlDecayPolicy

Enclosing interface:

TtlDecayPolicy

public static record TtlDecayPolicy.ExponentialDecay(Duration initialTtl, Duration minimumTtl, double decayFactor)
extends Record
implements TtlDecayPolicy

Exponential decay implementation 指数衰减实现

Since:

JDK 25, opencode-base-cache V2.0.5

Author:

Leon Soo www.LeonSoo.com

Nested Class Summary

Nested classes/interfaces inherited from interface TtlDecayPolicy

TtlDecayPolicy.ExponentialDecay, TtlDecayPolicy.LinearDecay, TtlDecayPolicy.NoDecay, TtlDecayPolicy.Step, TtlDecayPolicy.StepDecay

Constructor Summary

Constructors

Constructor	Description
ExponentialDecay(Duration initialTtl, Duration minimumTtl, double decayFactor)	public ExponentialDecay

Method Summary

Modifier and Type	Method	Description
Duration	calculateDecayedTtl(long accessCount)	Calculate decayed TTL based on access count 根据访问次数计算衰减后的 TTL
double	decayFactor()	Returns the value of the decayFactor record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
Duration	initialTtl()	Returns the value of the initialTtl record component.
Duration	minimumTtl()	Returns the value of the minimumTtl record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

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

Constructor Details

ExponentialDecay

public ExponentialDecay(Duration initialTtl,
 Duration minimumTtl,
 double decayFactor)

public ExponentialDecay

Method Details

calculateDecayedTtl

public Duration calculateDecayedTtl(long accessCount)

Description copied from interface: TtlDecayPolicy

Calculate decayed TTL based on access count 根据访问次数计算衰减后的 TTL

Specified by:

calculateDecayedTtl in interface TtlDecayPolicy

Parameters:

accessCount - number of times entry has been accessed | 条目被访问的次数

Returns:

decayed TTL | 衰减后的 TTL

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

initialTtl

public Duration initialTtl()

Returns the value of the initialTtl record component.

Specified by:

initialTtl in interface TtlDecayPolicy

Returns:

the value of the initialTtl record component

minimumTtl

public Duration minimumTtl()

Returns the value of the minimumTtl record component.

Specified by:

minimumTtl in interface TtlDecayPolicy

Returns:

the value of the minimumTtl record component

decayFactor

public double decayFactor()

Returns the value of the decayFactor record component.

Returns:

the value of the decayFactor record component