Formatting, code style

h2/src/test/org/h2/test/db/TestTableEngines.java

@@ -367,7 +367,7 @@ public class TestTableEngines extends TestBase {
         }
     }
 
-    private List<List<Object>> query(List<List<Object>> dataSet, RowFilter filter, RowComparator sort) {
+    private static List<List<Object>> query(List<List<Object>> dataSet, RowFilter filter, RowComparator sort) {
         List<List<Object>> res = New.arrayList();
         if (filter == null) {
             res.addAll(dataSet);
@@ -384,7 +384,7 @@ public class TestTableEngines extends TestBase {
         return res;
     }
 
-    private List<List<Object>> query(Statement stat, String qry) throws SQLException {
+    private static List<List<Object>> query(Statement stat, String qry) throws SQLException {
         ResultSet rs = stat.executeQuery(qry);
         int cols = rs.getMetaData().getColumnCount();
         List<List<Object>> list = New.arrayList();
@@ -697,6 +697,7 @@ public class TestTableEngines extends TestBase {
     }
 
     /**
+     * A table engine that internally uses a tree set.
      */
     public static class TreeSetIndexTableEngine implements TableEngine {
         @Override
@@ -706,6 +707,7 @@ public class TestTableEngines extends TestBase {
     }
 
     /**
+     * A table that internally uses a tree set.
      */
     private static class TreeSetTable extends TableBase {
         int dataMoficationId;
@@ -866,9 +868,10 @@ public class TestTableEngines extends TestBase {
     }
 
     /**
+     * An index that internally uses a tree set.
      */
     private static class TreeSetIndex extends BaseIndex implements Comparator<SearchRow> {
-        private final TreeSet<SearchRow> set = new TreeSet<SearchRow>(this);
+        final TreeSet<SearchRow> set = new TreeSet<SearchRow>(this);
 
         TreeSetIndex(Table t, String name, IndexColumn[] cols, IndexType type) {
             initBaseIndex(t, 0, name, cols, type);
@@ -898,7 +901,7 @@ public class TestTableEngines extends TestBase {
             set.remove(row);
         }
 
-        private SearchRow mark(SearchRow row) {
+        private static SearchRow mark(SearchRow row) {
             if (row != null) {
                 // Mark this row to be a search row.
                 row.setKey(Long.MAX_VALUE);
@@ -1019,6 +1022,7 @@ public class TestTableEngines extends TestBase {
     }
 
     /**
+     * A comparator for rows (lists of comparable objects).
      */
     private static class RowComparator implements Comparator<List<Object>> {
         private int[] cols;
@@ -1053,8 +1057,10 @@ public class TestTableEngines extends TestBase {
     }
 
     /**
+     * A filter for rows (lists of objects).
      */
-    private abstract static class RowFilter {
+    abstract static class RowFilter {
+
         protected abstract boolean accept(List<Object> row);
 
         protected Integer getInt(List<Object> row, int col) {