Dev

.gitignore

@@ -5,5 +5,7 @@ out/
 .gradle
 build/
 
+.kotlin
+
 
 !gradle-wrapper.jar

CHANGELOG.md

@@ -3,7 +3,6 @@
 ## Unreleased
 
 ### Added
-- Wasm artifacts
 
 ### Changed
 
@@ -12,10 +11,34 @@
 ### Removed
 
 ### Fixed
-- Partially fixed a bug with `MutableMeta` observable wrappers.
 
 ### Security
 
+## 0.8.0 - 2024-02-03
+
+### Added
+
+- Wasm artifacts
+- Add automatic MetaConverter for serializeable objects
+- Add Meta and MutableMeta delegates for convertable and serializeable
+- Meta mapping for data.
+
+### Changed
+
+- Descriptor `children` renamed to `nodes`
+- `MetaConverter` now inherits `MetaSpec` (former `Specifiction`). So `MetaConverter` could be used more universally.
+- Meta copy and modification now use lightweight non-observable meta builders.
+- Full refactor of Data API. DataTree now works similar to Meta: contains optional anonymous root element and data items. Updates are available for `ObservaleDataSource` and `ObservableDataTree` variants.
+
+### Deprecated
+
+- `node(key,converter)` in favor of `serializable` delegate
+
+### Fixed
+
+- Partially fixed a bug with `MutableMeta` observable wrappers.
+- `valueSequence` now include root value. So `meta.update` works properly.
+
 ## 0.7.0 - 2023-11-26
 
 ### Added

build.gradle.kts

@@ -8,7 +8,7 @@ plugins {
 
 allprojects {
     group = "space.kscience"
-    version = "0.7.1"
+    version = "0.8.0"
 }
 
 subprojects {

dataforge-context/README.md

@@ -6,18 +6,16 @@ Context and provider definitions
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:dataforge-context:0.7.0`.
+The Maven coordinates of this project are `space.kscience:dataforge-context:0.8.0`.
 
 **Gradle Kotlin DSL:**
 ```kotlin
 repositories {
     maven("https://repo.kotlin.link")
-    //uncomment to access development builds
-    //maven("https://maven.pkg.jetbrains.space/spc/p/sci/dev")
     mavenCentral()
 }
 
 dependencies {
-    implementation("space.kscience:dataforge-context:0.7.0")
+    implementation("space.kscience:dataforge-context:0.8.0")
 }
 ```

dataforge-context/api/dataforge-context.api

@@ -249,10 +249,27 @@ public final class space/kscience/dataforge/context/SlfLogManager$Companion : sp
 	public fun getTag ()Lspace/kscience/dataforge/context/PluginTag;
 }
 
-public final class space/kscience/dataforge/properties/PropertyKt {
+public abstract interface annotation class space/kscience/dataforge/descriptors/Description : java/lang/annotation/Annotation {
+	public abstract fun value ()Ljava/lang/String;
 }
 
-public final class space/kscience/dataforge/properties/SchemePropertyKt {
+public abstract interface annotation class space/kscience/dataforge/descriptors/DescriptorResource : java/lang/annotation/Annotation {
+	public abstract fun resourceName ()Ljava/lang/String;
+}
+
+public abstract interface annotation class space/kscience/dataforge/descriptors/DescriptorUrl : java/lang/annotation/Annotation {
+	public abstract fun url ()Ljava/lang/String;
+}
+
+public abstract interface annotation class space/kscience/dataforge/descriptors/Multiple : java/lang/annotation/Annotation {
+}
+
+public final class space/kscience/dataforge/descriptors/ReflectiveDescriptorsKt {
+	public static final fun forClass (Lspace/kscience/dataforge/meta/descriptors/MetaDescriptor$Companion;Lkotlin/reflect/KClass;Lkotlin/jvm/functions/Function1;)Lspace/kscience/dataforge/meta/descriptors/MetaDescriptor;
+	public static synthetic fun forClass$default (Lspace/kscience/dataforge/meta/descriptors/MetaDescriptor$Companion;Lkotlin/reflect/KClass;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lspace/kscience/dataforge/meta/descriptors/MetaDescriptor;
+}
+
+public final class space/kscience/dataforge/properties/MetaAsFlowKt {
 }
 
 public final class space/kscience/dataforge/provider/DfTypeKt {

dataforge-context/build.gradle.kts

@@ -12,7 +12,7 @@ kscience {
     useCoroutines()
     useSerialization()
     commonMain {
-        api(project(":dataforge-meta"))
+        api(projects.dataforgeMeta)
         api(spclibs.atomicfu)
     }
     jvmMain{

dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/properties/metaAsFlow.kt

@@ -0,0 +1,51 @@
+package space.kscience.dataforge.properties
+
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.launch
+import space.kscience.dataforge.meta.*
+import space.kscience.dataforge.misc.DFExperimental
+
+@DFExperimental
+public fun <T> ObservableMeta.asFlow(converter: MetaSpec<T>): Flow<T> = callbackFlow {
+    onChange(this){
+        trySend(converter.read(this))
+    }
+
+    awaitClose{
+        removeListener(this)
+    }
+}
+
+@DFExperimental
+public fun <T> MutableMeta.listenTo(
+    scope: CoroutineScope,
+    converter: MetaConverter<T>,
+    flow: Flow<T>,
+): Job = flow.onEach {
+    update(converter.convert(it))
+}.launchIn(scope)
+
+@DFExperimental
+public fun <T> ObservableMutableMeta.bind(
+    scope: CoroutineScope,
+    converter: MetaConverter<T>,
+    flow: MutableSharedFlow<T>,
+): Job = scope.launch{
+    listenTo(this, converter,flow)
+    onChange(flow){
+        launch {
+            flow.emit(converter.read(this@onChange))
+        }
+    }
+    flow.onCompletion {
+        removeListener(flow)
+    }
+}.also {
+    it.invokeOnCompletion {
+        removeListener(flow)
+    }
+}