Added more utils.

recorder/src/main/java/com/github/andrewlalis/running_every_day/data/DataSource.java

@@ -6,6 +6,8 @@ import java.nio.charset.StandardCharsets;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
 
 public class DataSource {
     private final Connection conn;
@@ -19,6 +21,16 @@ public class DataSource {
         return new RunRecordRepository(this.conn);
     }
 
+    public <T> List<T> query(String query, ResultSetMapper<T> mapper) throws SQLException {
+        try (var stmt = conn.prepareStatement(query); var rs = stmt.executeQuery()) {
+            List<T> items = new ArrayList<>();
+            while (rs.next()) {
+                items.add(mapper.map(rs));
+            }
+            return items;
+        }
+    }
+
     public void close() throws SQLException {
         this.conn.close();
     }

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/AggregateStatisticsPanel.java

@@ -0,0 +1,4 @@
+package com.github.andrewlalis.running_every_day.view;
+
+public class AggregateStatisticsPanel {
+}

recorder/src/main/java/com/github/andrewlalis/running_every_day/view/RunRecordTableModel.java

@@ -4,7 +4,6 @@ import com.github.andrewlalis.running_every_day.data.Page;
 import com.github.andrewlalis.running_every_day.data.RunRecord;
 
 import javax.swing.table.AbstractTableModel;
-import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -34,7 +33,6 @@ public class RunRecordTableModel extends AbstractTableModel {
     public Object getValueAt(int rowIndex, int columnIndex) {
         if (rowIndex < 0 || rowIndex >= records.size()) return null;
         RunRecord r = records.get(rowIndex);
-        DecimalFormat singleDigitFormat = new DecimalFormat("#,##0.0");
         return switch (columnIndex) {
             case 0 -> Long.toString(r.id());
             case 1 -> r.date().toString();