Checkstyle fixes + trace.isDebugEnabled() check added.

h2/src/main/org/h2/index/BaseIndex.java

@@ -241,7 +241,7 @@ public abstract class BaseIndex extends SchemaObjectBase implements Index {
         // If we have two indexes with the same cost, and one of the indexes can satisfy the query
         // without needing to read from the primary table, make that one slightly lower cost
         HashSet<Column> set1 = New.hashSet();
-        for (int i=0; i < filters.length; i++) {
+        for (int i = 0; i < filters.length; i++) {
             if (filters[i].getSelect() != null) {
                 filters[i].getSelect().isEverything(ExpressionVisitor.getColumnsVisitor(set1));
             }

h2/src/main/org/h2/table/Plan.java

@@ -8,10 +8,10 @@ package org.h2.table;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
-
 import org.h2.engine.Session;
 import org.h2.expression.Expression;
 import org.h2.expression.ExpressionVisitor;
+import org.h2.message.Trace;
 import org.h2.table.TableFilter.TableFilterVisitor;
 import org.h2.util.New;
 
@@ -106,17 +106,23 @@ public class Plan {
      * @return the cost
      */
     public double calculateCost(Session session) {
-    	if (session.getTrace().isDebugEnabled()) {
-    		session.getTrace().debug("Plan       : calculate cost for plan {0}", Arrays.toString(allFilters));
+        Trace t = session.getTrace();
+        if (t.isDebugEnabled()) {
+            t.debug("Plan       : calculate cost for plan {0}", Arrays.toString(allFilters));
         }
         double cost = 1;
         boolean invalidPlan = false;
         for (int i = 0; i < allFilters.length; i++) {
             TableFilter tableFilter = allFilters[i];
-            session.getTrace().debug("Plan       :   for table filter {0}", tableFilter);
+            if (t.isDebugEnabled()) {
+                t.debug("Plan       :   for table filter {0}", tableFilter);
+            }
             PlanItem item = tableFilter.getBestPlanItem(session, allFilters, i);
             planItems.put(tableFilter, item);
-            session.getTrace().debug("Plan       :   best plan item cost {0} index {1}", (int)item.cost, item.getIndex().getPlanSQL());
+            if (t.isDebugEnabled()) {
+                t.debug("Plan       :   best plan item cost {0} index {1}", 
+                        item.cost, item.getIndex().getPlanSQL());
+            }
             cost += cost * item.cost;
             setEvaluatable(tableFilter, true);
             Expression on = tableFilter.getJoinCondition();
@@ -130,7 +136,9 @@ public class Plan {
         if (invalidPlan) {
             cost = Double.POSITIVE_INFINITY;
         }
-        session.getTrace().debug("Plan       : plan cost {0}", (int)cost);
+        if (t.isDebugEnabled()) {
+            session.getTrace().debug("Plan       : plan cost {0}", cost);
+        }
         for (TableFilter f : allFilters) {
             setEvaluatable(f, false);
         }

h2/src/main/org/h2/table/Table.java

@@ -697,13 +697,20 @@ public abstract class Table extends SchemaObjectBase {
         PlanItem item = new PlanItem();
         item.setIndex(getScanIndex(session));
         item.cost = item.getIndex().getCost(session, null, filters, filter, null);
-        session.getTrace().debug("Table      :     potential plan item cost {0} index {1}", item.cost, item.getIndex().getPlanSQL());
+        Trace t = session.getTrace();
+        if (t.isDebugEnabled()) {
+            t.debug("Table      :     potential plan item cost {0} index {1}", 
+                    item.cost, item.getIndex().getPlanSQL());
+        }
         ArrayList<Index> indexes = getIndexes();
         if (indexes != null && masks != null) {
             for (int i = 1, size = indexes.size(); i < size; i++) {
                 Index index = indexes.get(i);
                 double cost = index.getCost(session, masks, filters, filter, sortOrder);
-                session.getTrace().debug("Table      :     potential plan item cost {0} index {1}", cost, index.getPlanSQL());
+                if (t.isDebugEnabled()) {
+                    t.debug("Table      :     potential plan item cost {0} index {1}", 
+                            cost, index.getPlanSQL());
+                }
                 if (cost < item.cost) {
                     item.cost = cost;
                     item.setIndex(index);