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>>

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(String string)	Returns the size in bytes of a String.
static int	sizeOfValueWrapper(ValueWrapper<String> value)	Returns the size in bytes of a String.
@org.checkerframework.checker.index.qual.NonNegative int	weigh(@NonNull String key, @NonNull 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 Detail

JIDWeigher

public JIDWeigher()

Method Detail

weigh

public @org.checkerframework.checker.index.qual.NonNegative int weigh(@NonNull String key,
                                                                      @NonNull 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(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(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.