add readOnly to the descriptor

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## [Unreleased]
 ### Added
+- Add `readOnly` property to descriptors
 - Add `specOrNull` delegate to meta and Scheme
 - Suspended read methods to the `Binary`
 - Synchronously accessed `meta` to all `DataSet`s

build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
 
 allprojects {
     group = "space.kscience"
-    version = "0.6.0-dev-13"
+    version = "0.6.0-dev-14"
 }
 
 subprojects {

dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/descriptors/MetaDescriptor.kt

@@ -29,7 +29,7 @@ public enum class ValueRequirement {
  * @param info description text
  * @param children child descriptors for this node
  * @param multiple True if same name siblings with this name are allowed
- * @param required The requirements for node content
+ * @param valueRequirement The requirements for node content
  * @param valueTypes list of allowed types for [Meta.value], null if all values are allowed.
  *  Empty list means that no value should be present in this node.
  * @param indexKey An index field by which this node is identified in case of same name siblings construct
@@ -45,6 +45,7 @@ public data class MetaDescriptor(
     public val valueTypes: List<ValueType>? = null,
     public val indexKey: String = Meta.INDEX_KEY,
     public val defaultValue: Value? = null,
+    public val readOnly: Boolean = false,
     public val attributes: Meta = Meta.EMPTY,
 ) {
     /**

dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/descriptors/MetaDescriptorBuilder.kt

@@ -13,6 +13,7 @@ public class MetaDescriptorBuilder  @PublishedApi internal constructor() {
     public var children: MutableMap<String, MetaDescriptorBuilder> = linkedMapOf()
     public var multiple: Boolean = false
     public var valueRequirement: ValueRequirement = ValueRequirement.NONE
+    public var readOnly: Boolean = false
 
     public var type: List<ValueType>? = null
 
@@ -85,6 +86,7 @@ public class MetaDescriptorBuilder  @PublishedApi internal constructor() {
         valueTypes = type,
         indexKey = indexKey,
         defaultValue = default,
+        readOnly = readOnly,
         attributes = attributes
     )
 }