Significantly overhauls Scopelet contract (#7)

Signed-off-by: Laird Nelson <[email protected]>

Author: ljnelson

NOTES.md

@@ -0,0 +1,7 @@
+# Scopes
+
+A Scope used as a scope and not used as a qualifier goes on the Any qualifier.
+
+A Scope used as a qualifier goes directly on a Scopelet.
+
+A Scope used as a "parent" scope goes on another Scope.

README.md

@@ -15,7 +15,7 @@ changes, regardless of project version and without notice.**
 
 # Requirements
 
-microBean™ Scopelet requires a Java runtime of version 21 or higher.
+microBean™ Scopelet requires a Java runtime of version 16 or higher.
 
 # Installation
 
@@ -27,7 +27,7 @@ dependency:
   <groupId>org.microbean</groupId>
   <artifactId>microbean-scopelet</artifactId>
   <!-- Always check https://search.maven.org/artifact/org.microbean/microbean-scopelet for up-to-date available versions. -->
-  <version>0.0.6</version>
+  <version>0.0.7</version>
 </dependency>
 ```
 

pom.xml

@@ -73,7 +73,7 @@
     <java.util.logging.config.file>${project.basedir}/src/test/java/logging.properties</java.util.logging.config.file>
 
     <!-- maven-compiler-plugin properties -->
-    <maven.compiler.release>23</maven.compiler.release>
+    <maven.compiler.release>16</maven.compiler.release>
     <maven.compiler.showDeprecation>true</maven.compiler.showDeprecation>
     <maven.compiler.showWarnings>true</maven.compiler.showWarnings>
 
@@ -147,7 +147,7 @@
       <dependency>
         <groupId>org.microbean</groupId>
         <artifactId>microbean-bean</artifactId>
-        <version>0.0.15</version>
+        <version>0.0.16</version>
       </dependency>
 
       <dependency>
@@ -159,7 +159,7 @@
       <dependency>
         <groupId>org.microbean</groupId>
         <artifactId>microbean-reference</artifactId>
-        <version>0.0.1</version>
+        <version>0.0.2</version>
       </dependency>
 
     </dependencies>

src/main/java/org/microbean/scopelet/MapBackedScopelet.java

@@ -45,15 +45,10 @@ public abstract class MapBackedScopelet<M extends MapBackedScopelet<M>> extends
   /**
    * Creates a new {@link MapBackedScopelet}.
    *
-   * @param scopeId an {@link Attributes} identifying the scope this {@link MapBackedScopelet} serves; must not be
-   * {@code null}
-   *
-   * @exception NullPointerException if {@code scopeId} is {@code null}
-   *
-   * @see Scopelet#Scopelet(Attributes)
+   * @see Scopelet#Scopelet()
    */
-  protected MapBackedScopelet(final Attributes scopeId) {
-    super(scopeId);
+  protected MapBackedScopelet() {
+    super();
     this.creationLocks = new ConcurrentHashMap<>();
     this.instances = new ConcurrentHashMap<>();
   }

src/main/java/org/microbean/scopelet/NoneScopelet.java

@@ -19,15 +19,12 @@
 import java.lang.constant.DynamicConstantDesc;
 import java.lang.constant.MethodHandleDesc;
 
-import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
 
 import org.microbean.bean.AutoCloseableRegistry;
-import org.microbean.bean.BeanTypeList;
 import org.microbean.bean.DisposableReference;
 import org.microbean.bean.Factory;
-import org.microbean.bean.Id;
 import org.microbean.bean.Request;
 
 import org.microbean.construct.Domain;
@@ -56,21 +53,10 @@ public class NoneScopelet extends Scopelet<NoneScopelet> implements Constable {
    * @exception NullPointerException if {@code domain} is {@code null}
    */
   public NoneScopelet(final Domain domain) {
-    super(NONE_ID); // the scope we implement
+    super();
     this.domain = Objects.requireNonNull(domain, "domain");
   }
 
-  @Override // Scopelet<NoneScopelet>
-  public Id id() {
-    return
-      new Id(BeanTypeList.of(this.domain,
-                             List.of(this.domain.declaredType(NoneScopelet.class.getCanonicalName()),
-                                     this.domain.declaredType(null,
-                                                              this.domain.typeElement(Scopelet.class.getCanonicalName()),
-                                                              this.domain.declaredType(NoneScopelet.class.getCanonicalName())))),
-             List.of(NONE_ID, anyQualifier())); // qualifiers
-  }
-
   // All parameters are nullable.
   // Non-final to permit subclasses to, e.g., add logging.
   @Override // Scopelet<NoneScopelet>