core/org.gnit.lucenekmp.jdkport/KClassValue

KClassValue

port of java.lang.ClassValue

Types

class ClassValueMap(val entries: MutableSet<Map.Entry<KClassValue.Identity?, KClassValue.Entry<*>?>> = mutableSetOf()) : AbstractMap<KClassValue.Identity?, KClassValue.Entry<*>?>

A backing map for all ClassValues. Gives a fully serialized "true state" for each pair (ClassValue cv, Class type). Also manages an unserialized fast-path cache.

Companion

object Companion

Entry

class Entry<T : Any> : WeakReference<KClassValue.Version<T>?>

One binding of a value to a class via a ClassValue. States are:

Identity

class Identity

Private key for retrieval of this object from ClassValueMap.

Version

class Version<T : Any>(classValue: KClassValue<T>)

Properties

hashCodeForCache

val hashCodeForCache: Int

Internal hash code for accessing Class.classValueMap.cacheArray.

identity

val identity: KClassValue.Identity

This ClassValue's identity, expressed as an opaque object. The main object ClassValue.this is incorrect since subclasses may override ClassValue.equals, which could confuse keys in the ClassValueMap.

Functions

bumpVersion

fun bumpVersion()

castEntry

fun castEntry(e: KClassValue.Entry<*>?): KClassValue.Entry<T>?

get

fun get(type: KClass<*>): T

Returns the value for the given class. If no value has yet been computed, it is obtained by an invocation of the .computeValue method.

match

fun match(e: KClassValue.Entry<*>?): Boolean

Check that e is non-null, matches this ClassValue, and is live.

put

fun put(type: KClass<*>, value: T)

remove

fun remove(type: KClass<*>)

Removes the associated value for the given class. If this value is subsequently .get for the same class, its value will be reinitialized by invoking its .computeValue method. This may result in an additional invocation of the computeValue method for the given class.

version

fun version(): KClassValue.Version<T>