superbob · June 17, 2013 08:08 · Jun 17, 2013
diff --git a/SpyInstanciations.java b/SpyInstanciations.java
@@ -0,0 +1,18 @@
+TimeSpy<Boolean> rsSpy = new TimeSpy<Boolean>() {
+    protected Boolean run() throws Exception {
+        return resultSet.next();
+    }
+};
+
+TimeSpy<Boolean> statementSpy = new TimeSpy<Boolean>() {
+    protected Boolean run() throws Exception {
+        return statement.execute();
+    }
+};
+
+TimeSpy<Boolean> commitSpy = new TimeSpy<Boolean>() {
+    protected Boolean run() throws Exception {
+        connection.commit();
+        return true;
+    }
+};
diff --git a/SpyResult.java b/SpyResult.java
@@ -0,0 +1,4 @@
+long t1 = rsSpy.getTime()/1000000;
+long t2 = statementSpy.getTime()/1000000;
+long t3 = commitSpy.getTime()/1000000;
+log.info("Ellapsed time : ResultSet.next() : " + t1 + "ms, Statement.execute() : " + t2 + "ms, Connextion.commit() : " + t3 + "ms.");
diff --git a/SpyRuns.java b/SpyRuns.java
@@ -0,0 +1,3 @@
+rsSpy.doIt()
+statementSpy.doIt();
+commitSpy.doIt();
diff --git a/TimeSpy.java b/TimeSpy.java
@@ -0,0 +1,21 @@
+private static abstract class TimeSpy<T> {
+    private long time = 0;
+
+    protected abstract T run() throws Exception;
+
+    public T doIt() throws InvocationTargetException {
+        time -= System.nanoTime();
+        T retVal;
+        try {
+            retVal = run();
+        } catch (Exception e) {
+            throw new InvocationTargetException(e);
+        }
+        time += System.nanoTime();
+        return retVal;
+    }
+
+    public long getTime() {
+        return time;
+    }
+}
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