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| Original file line number | Diff line number | Diff line change |
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| = Kotlin API | ||
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| === Suspendable API based on either reactive or async operations | ||
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| Example for retrieving commands and using it: | ||
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| [source,kt] | ||
| ---- | ||
| val cmd1: RedisSuspendableCommands<String, String> = connection.async().asSuspendable() | ||
| val cmd2: RedisSuspendableCommands<String, String> = connection.reactive().asSuspendable() | ||
| val foo1 = cmd1.set("foo", "bar") | ||
| val foo2 = cmd2.keys("fo*") | ||
| ---- | ||
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| === Extensions for existing APIs | ||
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| ==== Transactions DSL | ||
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| Example for sync: | ||
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| [source,kt] | ||
| ---- | ||
| val result: TransactionResult? = connection.sync().multi { | ||
| set("foo", "bar") | ||
| get("foo") | ||
| } | ||
| ---- | ||
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| Example for async with coroutines: | ||
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| [source,kt] | ||
| ---- | ||
| val result: TransactionResult? = connection.async().multi { | ||
| set("foo", "bar").await() | ||
| get("foo").await() | ||
| } | ||
| ---- |
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src/main/kotlin/io/lettuce/core/ExperimentalLettuceCoroutinesApi.kt
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| package io.lettuce.core | ||
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| import kotlin.RequiresOptIn.Level.WARNING | ||
| import kotlin.annotation.AnnotationRetention.BINARY | ||
| import kotlin.annotation.AnnotationTarget.* | ||
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| /** | ||
| * @author sokomishalov | ||
| */ | ||
| @RequiresOptIn(level = WARNING) | ||
| @Retention(BINARY) | ||
| @Target( | ||
| CLASS, | ||
| ANNOTATION_CLASS, | ||
| PROPERTY, | ||
| FIELD, | ||
| LOCAL_VARIABLE, | ||
| VALUE_PARAMETER, | ||
| CONSTRUCTOR, | ||
| FUNCTION, | ||
| PROPERTY_GETTER, | ||
| PROPERTY_SETTER, | ||
| TYPEALIAS | ||
| ) | ||
| annotation class ExperimentalLettuceCoroutinesApi |
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src/main/kotlin/io/lettuce/core/api/async/RedisAsyncCommandsExtensions.kt
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| package io.lettuce.core.api.async | ||
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| import io.lettuce.core.ExperimentalLettuceCoroutinesApi | ||
| import io.lettuce.core.TransactionResult | ||
| import io.lettuce.core.api.coroutines.RedisSuspendableCommands | ||
| import io.lettuce.core.api.coroutines.async.RedisSuspendableAsyncCommandsImpl | ||
| import kotlinx.coroutines.future.await | ||
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| /** | ||
| * Extension for [RedisAsyncCommands] to create [RedisSuspendableCommands] | ||
| * | ||
| * @author Mikhael Sokolov | ||
| * @since 6.0 | ||
| */ | ||
| @ExperimentalLettuceCoroutinesApi | ||
| fun <K, V> RedisAsyncCommands<K, V>.asSuspendable(): RedisSuspendableCommands<K, V> { | ||
| return RedisSuspendableAsyncCommandsImpl(this) | ||
| } | ||
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| /** | ||
| * Allows to create transaction DSL block with [RedisAsyncCommands]. | ||
| * | ||
| * @author Mikhael Sokolov | ||
| * @since 6.0 | ||
| */ | ||
| @ExperimentalLettuceCoroutinesApi | ||
| suspend inline fun <K, V> RedisAsyncCommands<K, V>.multi(action: RedisAsyncCommands<K, V>.() -> Unit): TransactionResult? { | ||
| multi().await() | ||
| runCatching { | ||
| action.invoke(this) | ||
| }.onFailure { | ||
| discard() | ||
| } | ||
| return exec().await() | ||
| } |
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