add fake data to endpoint

[Dert1129]

Summary by CodeRabbit

• New Features
  • Spatial transcriptomics is now available as an attribute in cluster hierarchy data, enabling enhanced cluster metadata organization.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Adds spatial transcriptomics support to ClusterHierarchy by introducing a new field across three layers: a transient String field in the Java model with Jackson serialization, a test entry in the service layer, and a GraphQL schema field for external API exposure.

Changes

Cohort / File(s)	Summary
Model Enhancement src/main/java/org/kpmp/cellTypeSummary/ClusterHierarchy.java	Introduces isSpatialTranscriptomics transient String field with @JsonProperty annotated getter and setter methods; adds necessary Jackson and Transient imports.
Service Layer src/main/java/org/kpmp/cellTypeSummary/ClusterHierarchyService.java	Appends a new test entry (bogusST) to results with isSpatialTranscriptomics set to "Y", demonstrating the field usage.
GraphQL Schema src/main/resources/graphql/knowledge_environment.graphqls	Exposes isSpatialTranscriptomics: String field in the ClusterHierarchy type definition for API consumers.

✨ Finishing touches

• 📝 Generate docstrings

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 0

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

src/main/java/org/kpmp/cellTypeSummary/ClusterHierarchyService.java (1)

63-68: Potential NPE in comparator if cellTypeOrder is null.

The comparator calls a.getCellTypeOrder().compareTo(b.getCellTypeOrder()) directly. Since getCellTypeOrder() returns Double (nullable, annotated with @Nullable in the model), any entry with a null cellTypeOrder will cause a NullPointerException.

While the new entries (bogusST, tiCluster) set this value explicitly, entries from the database via clusterToHierarchy could potentially have null values.

Suggested null-safe comparator

-        Collections.sort(result, new Comparator<ClusterHierarchy>() {
-            `@Override`
-            public int compare(ClusterHierarchy a, ClusterHierarchy b) {
-                return a.getCellTypeOrder().compareTo(b.getCellTypeOrder());
-            }
-        });
+        Collections.sort(result, Comparator.comparing(
+            ClusterHierarchy::getCellTypeOrder,
+            Comparator.nullsLast(Comparator.naturalOrder())
+        ));

🧹 Nitpick comments (1)

src/main/java/org/kpmp/cellTypeSummary/ClusterHierarchy.java (1)

14-14: Unused import.

JsonInclude is imported but not used in this class. Consider removing it to keep imports clean.

Suggested fix

-import com.fasterxml.jackson.annotation.JsonInclude;