refactor(trace/api): Introduce type system for trace API

This change updates the trace API by introducing a limited type system
for the table columns. Previously, the table columns could have any
possible type representable by the JVM. With this change, we limit the
available types to a small type system.

1 files changed, 2 insertions, 5 deletions

diff --git a/opendc-trace/opendc-trace-api/src/main/kotlin/org/opendc/trace/internal/TableImpl.kt b/opendc-trace/opendc-trace-api/src/main/kotlin/org/opendc/trace/internal/TableImpl.kt
index b848e19a..1e1bf676 100644
--- a/opendc-trace/opendc-trace-api/src/main/kotlin/org/opendc/trace/internal/TableImpl.kt
+++ b/opendc-trace/opendc-trace-api/src/main/kotlin/org/opendc/trace/internal/TableImpl.kt
@@ -37,13 +37,10 @@ internal class TableImpl(val trace: TraceImpl, override val name: String) : Tabl
      */
     private val details = trace.format.getDetails(trace.path, name)
 
-    override val columns: List<TableColumn<*>>
+    override val columns: List<TableColumn>
         get() = details.columns
 
-    override val partitionKeys: List<TableColumn<*>>
-        get() = details.partitionKeys
-
-    override fun newReader(projection: List<TableColumn<*>>?): TableReader {
+    override fun newReader(projection: List<String>?): TableReader {
         return trace.format.newReader(trace.path, name, projection)
     }