start add direct caches

0.22.8

CHANGELOG.md

@@ -1,5 +1,26 @@
 # Changelog
 
+## 0.22.9
+
+* `Repos`:
+  * `Cache`:
+    * Add direct caching repos
+
+## 0.22.8
+
+* `Common`:
+  * Add `List.breakAsPairs` extension
+  * Add `Sequence.padWith`/`Sequence.padStart`/`Sequence.padEnd` and `List.padWith`/`List.padStart`/`List.padEnd` extensions
+
+## 0.22.7
+
+* `Versions`:
+  * `Kotlin`: `2.0.20` -> `2.0.21`
+  * `Compose`: `1.7.0-rc01` -> `1.7.0`
+* `KSP`:
+  * `Sealed`:
+    * Change package of `GenerateSealedWorkaround`. Migration: replace `dev.inmo.microutils.kps.sealed.GenerateSealedWorkaround` -> `dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround`
+
 ## 0.22.6
 
 * `KSP`:

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/BreakAsPairs.kt

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.common
+
+fun <T> List<T>.breakAsPairs(): List<Pair<T, T>> {
+    val result = mutableListOf<Pair<T, T>>()
+
+    for (i in 0 until size - 1) {
+        val first = get(i)
+        val second = get(i + 1)
+        result.add(first to second)
+    }
+
+    return result
+}

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/PadExtensions.kt

@@ -0,0 +1,32 @@
+package dev.inmo.micro_utils.common
+
+inline fun <T> Sequence<T>.padWith(size: Int, inserter: (Sequence<T>) -> Sequence<T>): Sequence<T> {
+    var result = this
+    while (result.count() < size) {
+        result = inserter(result)
+    }
+    return result
+}
+
+inline fun <T> Sequence<T>.padEnd(size: Int, padBlock: (Int) -> T): Sequence<T> = padWith(size) { it + padBlock(it.count()) }
+
+inline fun <T> Sequence<T>.padEnd(size: Int, o: T) = padEnd(size) { o }
+
+inline fun <T> List<T>.padWith(size: Int, inserter: (List<T>) -> List<T>): List<T> {
+    var result = this
+    while (result.size < size) {
+        result = inserter(result)
+    }
+    return result
+}
+inline fun <T> List<T>.padEnd(size: Int, padBlock: (Int) -> T): List<T> = asSequence().padEnd(size, padBlock).toList()
+
+inline fun <T> List<T>.padEnd(size: Int, o: T): List<T> = asSequence().padEnd(size, o).toList()
+
+inline fun <T> Sequence<T>.padStart(size: Int, padBlock: (Int) -> T): Sequence<T> = padWith(size) { sequenceOf(padBlock(it.count())) + it }
+
+inline fun <T> Sequence<T>.padStart(size: Int, o: T) = padStart(size) { o }
+
+inline fun <T> List<T>.padStart(size: Int, padBlock: (Int) -> T): List<T> = asSequence().padStart(size, padBlock).toList()
+
+inline fun <T> List<T>.padStart(size: Int, o: T): List<T> = asSequence().padStart(size, o).toList()

gradle.properties

@@ -15,5 +15,5 @@ crypto_js_version=4.1.1
 # Project data
 
 group=dev.inmo
-version=0.22.6
-android_code_version=272
+version=0.22.9
+android_code_version=275

gradle/libs.versions.toml

@@ -1,12 +1,12 @@
 [versions]
 
-kt = "2.0.20"
+kt = "2.0.21"
 kt-serialization = "1.7.3"
 kt-coroutines = "1.9.0"
 
 kslog = "1.3.6"
 
-jb-compose = "1.7.0-rc01"
+jb-compose = "1.7.0"
 jb-exposed = "0.55.0"
 jb-dokka = "1.9.20"
 
@@ -23,7 +23,7 @@ koin = "4.0.0"
 
 okio = "3.9.1"
 
-ksp = "2.0.20-1.0.25"
+ksp = "2.0.21-1.0.25"
 kotlin-poet = "1.18.1"
 
 versions = "0.51.0"

ksp/sealed/generator/src/main/kotlin/KSClassDeclarationGetGenerateSealedWorkaroundAnnotation.kt

@@ -0,0 +1,11 @@
+package dev.inmo.micro_utils.ksp.sealed.generator
+
+import com.google.devtools.ksp.KspExperimental
+import com.google.devtools.ksp.getAnnotationsByType
+import com.google.devtools.ksp.symbol.KSClassDeclaration
+import dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround
+import dev.inmo.microutils.kps.sealed.GenerateSealedWorkaround as OldGenerateSealedWorkaround
+
+@OptIn(KspExperimental::class)
+val KSClassDeclaration.getGenerateSealedWorkaroundAnnotation
+    get() = (getAnnotationsByType(GenerateSealedWorkaround::class).firstOrNull() ?: getAnnotationsByType(OldGenerateSealedWorkaround::class).firstOrNull())

ksp/sealed/generator/src/main/kotlin/Processor.kt

@@ -19,7 +19,7 @@ import dev.inmo.micro_ksp.generator.buildSubFileName
 import dev.inmo.micro_ksp.generator.companion
 import dev.inmo.micro_ksp.generator.findSubClasses
 import dev.inmo.micro_ksp.generator.writeFile
-import dev.inmo.microutils.kps.sealed.GenerateSealedWorkaround
+import dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround
 import java.io.File
 
 class Processor(
@@ -53,10 +53,10 @@ class Processor(
         ksClassDeclaration: KSClassDeclaration,
         resolver: Resolver
     ) {
-        val annotation = ksClassDeclaration.getAnnotationsByType(GenerateSealedWorkaround::class).first()
+        val annotation = ksClassDeclaration.getGenerateSealedWorkaroundAnnotation
         val subClasses = ksClassDeclaration.resolveSubclasses(
             searchIn = resolver.getAllFiles(),
-            allowNonSealed = annotation.includeNonSealedSubTypes
+            allowNonSealed = annotation ?.includeNonSealedSubTypes ?: false
         ).distinct()
         val subClassesNames = subClasses.filter {
             when (it.classKind) {
@@ -112,7 +112,7 @@ class Processor(
     @OptIn(KspExperimental::class)
     override fun process(resolver: Resolver): List<KSAnnotated> {
         (resolver.getSymbolsWithAnnotation(GenerateSealedWorkaround::class.qualifiedName!!)).filterIsInstance<KSClassDeclaration>().forEach {
-            val prefix = it.getAnnotationsByType(GenerateSealedWorkaround::class).first().prefix.takeIf {
+            val prefix = (it.getGenerateSealedWorkaroundAnnotation) ?.prefix ?.takeIf {
                 it.isNotEmpty()
             } ?: it.buildSubFileName.replaceFirst(it.simpleName.asString(), "")
             it.writeFile(prefix = prefix, suffix = "SealedWorkaround") {

ksp/sealed/generator/test/src/commonMain/kotlin/Test.kt

@@ -1,6 +1,6 @@
 package dev.inmo.micro_utils.ksp.sealed.generator.test
 
-import dev.inmo.microutils.kps.sealed.GenerateSealedWorkaround
+import dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround
 
 @GenerateSealedWorkaround
 sealed interface Test {

ksp/sealed/src/commonMain/kotlin/GenerateSealedWorkaround.kt

@@ -1,4 +1,4 @@
-package dev.inmo.microutils.kps.sealed
+package dev.inmo.micro_utils.ksp.sealed
 
 @Retention(AnnotationRetention.BINARY)
 @Target(AnnotationTarget.CLASS)

ksp/sealed/src/commonMain/kotlin/OldGenerateSealedWorkaround.kt

@@ -0,0 +1,6 @@
+package dev.inmo.microutils.kps.sealed
+
+import dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround
+
+@Deprecated("Replaced", ReplaceWith("GenerateSealedWorkaround", "dev.inmo.micro_utils.ksp.sealed.GenerateSealedWorkaround"))
+typealias GenerateSealedWorkaround = GenerateSealedWorkaround

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/full/direct/DirectFullCRUDCacheRepo.kt

@@ -0,0 +1,113 @@
+package dev.inmo.micro_utils.repos.cache.full.direct
+
+import dev.inmo.micro_utils.common.*
+import dev.inmo.micro_utils.coroutines.SmartRWLocker
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import dev.inmo.micro_utils.coroutines.withReadAcquire
+import dev.inmo.micro_utils.coroutines.withWriteLock
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.cache.*
+import dev.inmo.micro_utils.repos.cache.util.ActualizeAllClearMode
+import dev.inmo.micro_utils.repos.cache.util.actualizeAll
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+
+open class DirectFullReadCRUDCacheRepo<ObjectType, IdType>(
+    protected open val parentRepo: ReadCRUDRepo<ObjectType, IdType>,
+    protected open val kvCache: KeyValueRepo<IdType, ObjectType>,
+    protected val locker: SmartRWLocker = SmartRWLocker(),
+    protected open val idGetter: (ObjectType) -> IdType
+) : ReadCRUDRepo<ObjectType, IdType>, DirectFullCacheRepo {
+    protected open suspend fun actualizeAll() {
+        kvCache.actualizeAll(parentRepo, locker = locker)
+    }
+
+    override suspend fun getByPagination(pagination: Pagination): PaginationResult<ObjectType> = locker.withReadAcquire {
+        kvCache.values(pagination)
+    }
+
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> = locker.withReadAcquire {
+        kvCache.keys(pagination)
+    }
+
+    override suspend fun count(): Long = locker.withReadAcquire {
+        kvCache.count()
+    }
+
+    override suspend fun contains(id: IdType): Boolean = locker.withReadAcquire {
+        kvCache.contains(id)
+    }
+
+    override suspend fun getAll(): Map<IdType, ObjectType> = locker.withReadAcquire {
+        kvCache.getAll()
+    }
+
+    override suspend fun getById(id: IdType): ObjectType? = locker.withReadAcquire {
+        kvCache.get(id)
+    }
+
+    override suspend fun invalidate() {
+        actualizeAll()
+    }
+}
+
+fun <ObjectType, IdType> ReadCRUDRepo<ObjectType, IdType>.directlyCached(
+    kvCache: KeyValueRepo<IdType, ObjectType>,
+    locker: SmartRWLocker = SmartRWLocker(),
+    idGetter: (ObjectType) -> IdType
+) = DirectFullReadCRUDCacheRepo(this, kvCache, locker, idGetter)
+
+open class DirectFullCRUDCacheRepo<ObjectType, IdType, InputValueType>(
+    override val parentRepo: CRUDRepo<ObjectType, IdType, InputValueType>,
+    kvCache: KeyValueRepo<IdType, ObjectType>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker(writeIsLocked = !skipStartInvalidate),
+    idGetter: (ObjectType) -> IdType
+) : DirectFullReadCRUDCacheRepo<ObjectType, IdType>(
+    parentRepo,
+    kvCache,
+    locker,
+    idGetter
+),
+    WriteCRUDRepo<ObjectType, IdType, InputValueType> by WriteCRUDCacheRepo(
+        parentRepo,
+        kvCache,
+        scope,
+        locker,
+        idGetter
+    ),
+    CRUDRepo<ObjectType, IdType, InputValueType> {
+    init {
+        if (!skipStartInvalidate) {
+            scope.launchSafelyWithoutExceptions {
+                if (locker.writeMutex.isLocked) {
+                    initialInvalidate()
+                } else {
+                    invalidate()
+                }
+            }
+        }
+    }
+
+    protected open suspend fun initialInvalidate() {
+        try {
+            kvCache.actualizeAll(parentRepo, locker = null)
+        } finally {
+            locker.unlockWrite()
+        }
+    }
+    override suspend fun invalidate() {
+        actualizeAll()
+    }
+}
+
+fun <ObjectType, IdType, InputType> CRUDRepo<ObjectType, IdType, InputType>.directFullyCached(
+    kvCache: KeyValueRepo<IdType, ObjectType> = MapKeyValueRepo(),
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker(),
+    idGetter: (ObjectType) -> IdType
+) = DirectFullCRUDCacheRepo(this, kvCache, scope, skipStartInvalidate, locker, idGetter)

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/full/direct/DirectFullCacheRepo.kt

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.repos.cache.full.direct
+
+import dev.inmo.micro_utils.repos.cache.full.FullCacheRepo
+
+/**
+ * Repos-inheritors MUST realize their methods via next logic:
+ *
+ * * Reloading of data in cache must be reactive (e.g. via Flow) or direct mutation methods usage (override set and
+ * mutate cache inside, for example)
+ * * All reading methods must take data from cache via synchronization with [dev.inmo.micro_utils.coroutines.SmartRWLocker]
+ */
+interface DirectFullCacheRepo : FullCacheRepo {
+}

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/full/direct/DirectFullKeyValueCacheRepo.kt

@@ -0,0 +1,177 @@
+package dev.inmo.micro_utils.repos.cache.full.direct
+
+import dev.inmo.micro_utils.coroutines.SmartRWLocker
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import dev.inmo.micro_utils.coroutines.withReadAcquire
+import dev.inmo.micro_utils.coroutines.withWriteLock
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.cache.full.FullKeyValueCacheRepo
+import dev.inmo.micro_utils.repos.cache.full.FullReadKeyValueCacheRepo
+import dev.inmo.micro_utils.repos.cache.full.FullWriteKeyValueCacheRepo
+import dev.inmo.micro_utils.repos.cache.util.actualizeAll
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+
+open class DirectFullReadKeyValueCacheRepo<Key, Value>(
+    protected open val parentRepo: ReadKeyValueRepo<Key, Value>,
+    protected open val kvCache: KeyValueRepo<Key, Value>,
+    protected val locker: SmartRWLocker = SmartRWLocker()
+) : DirectFullCacheRepo, ReadKeyValueRepo<Key, Value> {
+    protected open suspend fun actualizeAll() {
+        kvCache.actualizeAll(parentRepo, locker)
+    }
+
+    override suspend fun get(k: Key): Value? = locker.withReadAcquire {
+        kvCache.get(k)
+    }
+
+    override suspend fun values(pagination: Pagination, reversed: Boolean): PaginationResult<Value> = locker.withReadAcquire {
+        kvCache.values(pagination, reversed)
+    }
+
+    override suspend fun count(): Long = locker.withReadAcquire {
+        kvCache.count()
+    }
+
+    override suspend fun contains(key: Key): Boolean = locker.withReadAcquire {
+        kvCache.contains(key)
+    }
+
+    override suspend fun getAll(): Map<Key, Value> = locker.withReadAcquire {
+        kvCache.getAll()
+    }
+
+    override suspend fun keys(pagination: Pagination, reversed: Boolean): PaginationResult<Key> = locker.withReadAcquire {
+        kvCache.keys(pagination, reversed)
+    }
+
+    override suspend fun keys(v: Value, pagination: Pagination, reversed: Boolean): PaginationResult<Key> = locker.withReadAcquire {
+        kvCache.keys(v, pagination, reversed)
+    }
+
+    override suspend fun invalidate() {
+        actualizeAll()
+    }
+}
+
+fun <Key, Value> ReadKeyValueRepo<Key, Value>.directlyCached(
+    kvCache: KeyValueRepo<Key, Value>,
+    locker: SmartRWLocker = SmartRWLocker()
+) = DirectFullReadKeyValueCacheRepo(this, kvCache, locker)
+
+open class DirectFullWriteKeyValueCacheRepo<Key, Value>(
+    protected open val parentRepo: WriteKeyValueRepo<Key, Value>,
+    protected open val kvCache: KeyValueRepo<Key, Value>,
+    protected val locker: SmartRWLocker = SmartRWLocker(),
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+) : DirectFullCacheRepo, WriteKeyValueRepo<Key, Value> by parentRepo {
+    override val onNewValue: Flow<Pair<Key, Value>>
+        get() = parentRepo.onNewValue
+    override val onValueRemoved: Flow<Key>
+        get() = parentRepo.onValueRemoved
+
+    protected val onNewJob = parentRepo.onNewValue.onEach {
+        locker.withWriteLock {
+            kvCache.set(it.first, it.second)
+        }
+    }.launchIn(scope)
+    protected val onRemoveJob = parentRepo.onValueRemoved.onEach {
+        locker.withWriteLock {
+            kvCache.unset(it)
+        }
+    }.launchIn(scope)
+
+    override suspend fun invalidate() {
+        locker.withWriteLock {
+            kvCache.clear()
+        }
+    }
+
+    override suspend fun unsetWithValues(toUnset: List<Value>) = parentRepo.unsetWithValues(toUnset)
+}
+
+fun <Key, Value> WriteKeyValueRepo<Key, Value>.directlyCached(
+    kvCache: KeyValueRepo<Key, Value>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default)
+) = DirectFullWriteKeyValueCacheRepo(this, kvCache, scope = scope)
+
+open class DirectFullKeyValueCacheRepo<Key, Value>(
+    override val parentRepo: KeyValueRepo<Key, Value>,
+    kvCache: KeyValueRepo<Key, Value>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker(writeIsLocked = !skipStartInvalidate),
+) : DirectFullCacheRepo,
+    KeyValueRepo<Key, Value> ,
+    WriteKeyValueRepo<Key, Value> by DirectFullWriteKeyValueCacheRepo(
+        parentRepo,
+        kvCache,
+        locker,
+        scope
+    ),
+    DirectFullReadKeyValueCacheRepo<Key, Value>(parentRepo, kvCache, locker) {
+    init {
+        if (!skipStartInvalidate) {
+            scope.launchSafelyWithoutExceptions {
+                if (locker.writeMutex.isLocked) {
+                    initialInvalidate()
+                } else {
+                    invalidate()
+                }
+            }
+        }
+    }
+
+
+    protected open suspend fun initialInvalidate() {
+        try {
+            kvCache.actualizeAll(parentRepo, locker = null)
+        } finally {
+            locker.unlockWrite()
+        }
+    }
+    override suspend fun invalidate() {
+        kvCache.actualizeAll(parentRepo, locker)
+    }
+
+    override suspend fun clear() {
+        parentRepo.clear()
+        kvCache.clear()
+    }
+
+    override suspend fun unsetWithValues(toUnset: List<Value>) = parentRepo.unsetWithValues(toUnset)
+
+    override suspend fun set(toSet: Map<Key, Value>) {
+        locker.withWriteLock {
+            parentRepo.set(toSet)
+            kvCache.set(
+                toSet.filter {
+                    parentRepo.contains(it.key)
+                }
+            )
+        }
+    }
+
+    override suspend fun unset(toUnset: List<Key>) {
+        locker.withWriteLock {
+            parentRepo.unset(toUnset)
+            kvCache.unset(
+                toUnset.filter {
+                    !parentRepo.contains(it)
+                }
+            )
+        }
+    }
+}
+
+fun <Key, Value> KeyValueRepo<Key, Value>.directlyFullyCached(
+    kvCache: KeyValueRepo<Key, Value> = MapKeyValueRepo(),
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker()
+) = DirectFullKeyValueCacheRepo(this, kvCache, scope, skipStartInvalidate, locker)

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/full/direct/DirectFullKeyValuesCacheRepo.kt

@@ -0,0 +1,243 @@
+package dev.inmo.micro_utils.repos.cache.full.direct
+
+import dev.inmo.micro_utils.common.*
+import dev.inmo.micro_utils.coroutines.SmartRWLocker
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import dev.inmo.micro_utils.coroutines.withReadAcquire
+import dev.inmo.micro_utils.coroutines.withWriteLock
+import dev.inmo.micro_utils.pagination.*
+import dev.inmo.micro_utils.pagination.utils.*
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.cache.util.ActualizeAllClearMode
+import dev.inmo.micro_utils.repos.cache.util.actualizeAll
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.*
+
+open class DirectFullReadKeyValuesCacheRepo<Key,Value>(
+    protected open val parentRepo: ReadKeyValuesRepo<Key, Value>,
+    protected open val kvCache: KeyValueRepo<Key, List<Value>>,
+    protected val locker: SmartRWLocker = SmartRWLocker(),
+) : ReadKeyValuesRepo<Key, Value>, DirectFullCacheRepo {
+    protected open suspend fun actualizeKey(k: Key) {
+        kvCache.actualizeAll(locker = locker, clearMode = ActualizeAllClearMode.Never) {
+            mapOf(k to parentRepo.getAll(k))
+        }
+    }
+
+    protected open suspend fun actualizeAll() {
+        kvCache.actualizeAll(parentRepo, locker = locker)
+    }
+
+    override suspend fun get(k: Key, pagination: Pagination, reversed: Boolean): PaginationResult<Value> {
+        return locker.withReadAcquire {
+            kvCache.get(k) ?.paginate(
+                pagination.let { if (reversed) it.reverse(count(k)) else it }
+            ) ?.let {
+                if (reversed) it.copy(results = it.results.reversed()) else it
+            }
+        } ?: emptyPaginationResult()
+    }
+
+    override suspend fun getAll(k: Key, reversed: Boolean): List<Value> {
+        return locker.withReadAcquire {
+            kvCache.get(k) ?.optionallyReverse(reversed)
+        } ?: emptyList()
+    }
+
+    override suspend fun getAll(reverseLists: Boolean): Map<Key, List<Value>> {
+        return locker.withReadAcquire {
+            kvCache.getAll().takeIf { it.isNotEmpty() } ?.let {
+                if (reverseLists) {
+                    it.mapValues { it.value.reversed() }
+                } else {
+                    it
+                }
+            }
+        } ?: emptyMap()
+    }
+    override suspend fun keys(pagination: Pagination, reversed: Boolean): PaginationResult<Key> {
+        return locker.withReadAcquire {
+            kvCache.keys(pagination, reversed).takeIf { it.results.isNotEmpty() }
+        } ?: emptyPaginationResult()
+    }
+
+    override suspend fun count(): Long = locker.withReadAcquire { kvCache.count() }
+
+    override suspend fun count(k: Key): Long = locker.withReadAcquire { kvCache.get(k) ?.size } ?.toLong() ?: 0L
+
+    override suspend fun contains(k: Key, v: Value): Boolean = locker.withReadAcquire { kvCache.get(k) ?.contains(v) } == true
+
+    override suspend fun contains(k: Key): Boolean = locker.withReadAcquire { kvCache.contains(k) }
+
+    override suspend fun keys(
+        v: Value,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<Key> {
+        val keys = locker.withReadAcquire {
+            getAllWithNextPaging { kvCache.keys(it) }.filter { kvCache.get(it)?.contains(v) == true }
+                .optionallyReverse(reversed)
+        }
+        val result = if (keys.isNotEmpty()) {
+            keys.paginate(pagination.optionallyReverse(keys.size, reversed)).takeIf { it.results.isNotEmpty() }
+        } else {
+            null
+        }
+
+        return result ?: emptyPaginationResult()
+    }
+
+    override suspend fun invalidate() {
+        actualizeAll()
+    }
+}
+
+fun <Key, Value> ReadKeyValuesRepo<Key, Value>.directlyCached(
+    kvCache: KeyValueRepo<Key, List<Value>>,
+    locker: SmartRWLocker = SmartRWLocker(),
+) = DirectFullReadKeyValuesCacheRepo(this, kvCache, locker)
+
+open class DirectFullWriteKeyValuesCacheRepo<Key,Value>(
+    parentRepo: WriteKeyValuesRepo<Key, Value>,
+    protected open val kvCache: KeyValueRepo<Key, List<Value>>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    protected val locker: SmartRWLocker = SmartRWLocker(),
+) : WriteKeyValuesRepo<Key, Value> by parentRepo, DirectFullCacheRepo {
+    protected val onNewJob = parentRepo.onNewValue.onEach {
+        locker.withWriteLock {
+            kvCache.set(
+                it.first,
+                kvCache.get(it.first) ?.plus(it.second) ?: listOf(it.second)
+            )
+        }
+    }.launchIn(scope)
+    protected val onRemoveJob = parentRepo.onValueRemoved.onEach {
+        locker.withWriteLock {
+            kvCache.set(
+                it.first,
+                kvCache.get(it.first)?.minus(it.second) ?: return@onEach
+            )
+        }
+    }.launchIn(scope)
+
+    override suspend fun invalidate() {
+        locker.withWriteLock {
+            kvCache.clear()
+        }
+    }
+}
+
+fun <Key, Value> WriteKeyValuesRepo<Key, Value>.directlyCached(
+    kvCache: KeyValueRepo<Key, List<Value>>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    locker: SmartRWLocker = SmartRWLocker(),
+) = DirectFullWriteKeyValuesCacheRepo(this, kvCache, scope, locker)
+
+open class DirectFullKeyValuesCacheRepo<Key,Value>(
+    override val parentRepo: KeyValuesRepo<Key, Value>,
+    kvCache: KeyValueRepo<Key, List<Value>>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker(writeIsLocked = !skipStartInvalidate),
+) : KeyValuesRepo<Key, Value>,
+    DirectFullReadKeyValuesCacheRepo<Key, Value>(parentRepo, kvCache, locker),
+    WriteKeyValuesRepo<Key, Value> by parentRepo {
+    init {
+        if (!skipStartInvalidate) {
+            scope.launchSafelyWithoutExceptions {
+                if (locker.writeMutex.isLocked) {
+                    initialInvalidate()
+                } else {
+                    invalidate()
+                }
+            }
+        }
+    }
+
+    override suspend fun clearWithValue(v: Value) {
+        doAllWithCurrentPaging {
+            keys(v, it).also {
+                remove(it.results.associateWith { listOf(v) })
+            }
+        }
+    }
+
+    protected open suspend fun initialInvalidate() {
+        try {
+            kvCache.actualizeAll(parentRepo, locker = null)
+        } finally {
+            locker.unlockWrite()
+        }
+    }
+    override suspend fun invalidate() {
+        kvCache.actualizeAll(parentRepo, locker = locker)
+    }
+
+    override suspend fun set(toSet: Map<Key, List<Value>>) {
+        locker.withWriteLock {
+            parentRepo.set(toSet)
+            kvCache.set(
+                toSet.filter {
+                    parentRepo.contains(it.key)
+                }
+            )
+        }
+    }
+
+    override suspend fun add(toAdd: Map<Key, List<Value>>) {
+        locker.withWriteLock {
+            parentRepo.add(toAdd)
+            toAdd.forEach {
+                val filtered = it.value.filter { v ->
+                    parentRepo.contains(it.key, v)
+                }.ifEmpty {
+                    return@forEach
+                }
+                kvCache.set(
+                    it.key,
+                    (kvCache.get(it.key) ?: emptyList()) + filtered
+                )
+            }
+        }
+    }
+
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) {
+        locker.withWriteLock {
+            parentRepo.remove(toRemove)
+            toRemove.forEach {
+                val filtered = it.value.filter { v ->
+                    !parentRepo.contains(it.key, v)
+                }.ifEmpty {
+                    return@forEach
+                }.toSet()
+                val resultList = (kvCache.get(it.key) ?: emptyList()) - filtered
+                if (resultList.isEmpty()) {
+                    kvCache.unset(it.key)
+                } else {
+                    kvCache.set(
+                        it.key,
+                        resultList
+                    )
+                }
+            }
+        }
+    }
+
+    override suspend fun clear(k: Key) {
+        locker.withWriteLock {
+            parentRepo.clear(k)
+            if (parentRepo.contains(k)) {
+                return@withWriteLock
+            }
+            kvCache.unset(k)
+        }
+    }
+}
+
+fun <Key, Value> KeyValuesRepo<Key, Value>.directlyFullyCached(
+    kvCache: KeyValueRepo<Key, List<Value>> = MapKeyValueRepo(),
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    skipStartInvalidate: Boolean = false,
+    locker: SmartRWLocker = SmartRWLocker(),
+) = DirectFullKeyValuesCacheRepo(this, kvCache, scope, skipStartInvalidate, locker)