Package org.xmpp.util

Class JIDWeigher

java.lang.Object

org.xmpp.util.JIDWeigher

All Implemented Interfaces:

com.github.benmanes.caffeine.cache.Weigher<String,ValueWrapper<String>>

@NullMarked
public class JIDWeigher
extends Object
implements com.github.benmanes.caffeine.cache.Weigher<String,ValueWrapper<String>>

A Weigher that weights cache entries that contains JID parts. The weights that are used are byte-size based.

Author:

Guus der Kinderen, guus.der.kinderen@gmail.com

Constructor Summary

Constructors

Constructor	Description
JIDWeigher()

Method Summary

Modifier and Type	Method	Description
static int	sizeOfString(@Nullable String string)	Returns the size in bytes of a String.
static int	sizeOfValueWrapper(@Nullable ValueWrapper<String> value)	Returns the size in bytes of a String.
int	weigh(String key, ValueWrapper<String> value)	Returns the weight of a cache entry.

Methods inherited from class java.lang.Object

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

Constructor Details

JIDWeigher

public JIDWeigher()

Method Details

weigh

public int weigh(String key,
 ValueWrapper<String> value)

Returns the weight of a cache entry. There is no unit for entry weights; rather they are simply relative to each other.

Specified by:

weigh in interface com.github.benmanes.caffeine.cache.Weigher<String,ValueWrapper<String>>

Parameters:

key - the key to weigh

value - the value to weigh

Returns:

the weight of the entry; must be non-negative

sizeOfString

public static int sizeOfString(@Nullable String string)

Returns the size in bytes of a String.

Parameters:

string - the String to determine the size of.

Returns:

the size of a String.

sizeOfValueWrapper

public static int sizeOfValueWrapper(@Nullable ValueWrapper<String> value)

Returns the size in bytes of a String.

Parameters:

value - the object to determine the size of.

Returns:

the size of the object.