From fc6fee90e783c0c945f3a3b2e03157c4e58e5676 Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Fri, 25 Jan 2008 19:56:16 +0000
Subject: Add transaction detach/attach methods.

---
 .../amazon/carbonado/repo/toy/ToyTransaction.java  |   6 +
 .../carbonado/spi/TestTransactionManager.java      | 156 +++++++++++++++++++++
 2 files changed, 162 insertions(+)
 create mode 100644 src/test/java/com/amazon/carbonado/spi/TestTransactionManager.java

(limited to 'src/test')

diff --git a/src/test/java/com/amazon/carbonado/repo/toy/ToyTransaction.java b/src/test/java/com/amazon/carbonado/repo/toy/ToyTransaction.java
index c16d1f1..7188e57 100644
--- a/src/test/java/com/amazon/carbonado/repo/toy/ToyTransaction.java
+++ b/src/test/java/com/amazon/carbonado/repo/toy/ToyTransaction.java
@@ -48,4 +48,10 @@ public class ToyTransaction implements Transaction {
     public IsolationLevel getIsolationLevel() {
         throw new UnsupportedOperationException();
     }
+
+    public void detach() {
+    }
+
+    public void attach() {
+    }
 }
diff --git a/src/test/java/com/amazon/carbonado/spi/TestTransactionManager.java b/src/test/java/com/amazon/carbonado/spi/TestTransactionManager.java
new file mode 100644
index 0000000..8747424
--- /dev/null
+++ b/src/test/java/com/amazon/carbonado/spi/TestTransactionManager.java
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2008 Amazon Technologies, Inc. or its affiliates.
+ * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
+ * of Amazon Technologies, Inc. or its affiliates.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.amazon.carbonado.spi;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ExecutorService;
+
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+import com.amazon.carbonado.IsolationLevel;
+import com.amazon.carbonado.Transaction;
+
+/**
+ * 
+ *
+ * @author Brian S O'Neill
+ */
+public class TestTransactionManager extends TestCase {
+    public static void main(String[] args) {
+        junit.textui.TestRunner.run(suite());
+    }
+
+    public static TestSuite suite() {
+        return new TestSuite(TestTransactionManager.class);
+    }
+
+    TM mTxnMgr;
+
+    public TestTransactionManager(String name) {
+        super(name);
+    }
+
+    protected void setUp() {
+        mTxnMgr = new TM();
+    }
+
+    public void testAttachDetach() throws Exception {
+        Transaction txn = mTxnMgr.localScope().enter(null);
+
+        // This batch of tests just ensures no IllegalStateExceptions are thrown.
+        {
+            // Should do nothing.
+            txn.attach();
+            // Should detach.
+            txn.detach();
+            // Should do nothing.
+            txn.detach();
+            // Should attach.
+            txn.attach();
+        }
+
+        // Set up for multi-threaded tests.
+
+        ExecutorService es = Executors.newSingleThreadExecutor();
+
+        Transaction txn2 = es.submit(new Callable<Transaction>() {
+            public Transaction call() {
+                return mTxnMgr.localScope().enter(null);
+            }
+        }).get();
+
+        try {
+            txn2.attach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        try {
+            txn2.detach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        txn.detach();
+
+        txn2.attach();
+        txn2.detach();
+        txn2.attach();
+
+        try {
+            txn.attach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        try {
+            txn.detach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        txn2.exit();
+
+        try {
+            txn.attach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        try {
+            txn.detach();
+            fail();
+        } catch (IllegalStateException e) {
+        }
+
+        txn2.detach();
+
+        txn.detach();
+        txn.attach();
+        txn.detach();
+
+        es.shutdown();
+    }
+
+    private static class Txn {
+    }
+
+    private static class TM extends TransactionManager<Txn> {
+        protected IsolationLevel selectIsolationLevel(Transaction parent, IsolationLevel level) {
+            return IsolationLevel.READ_UNCOMMITTED;
+        }
+
+        protected boolean supportsForUpdate() {
+            return true;
+        }
+
+        protected Txn createTxn(Txn parent, IsolationLevel level) {
+            return new Txn();
+        }
+
+        protected boolean commitTxn(Txn txn) {
+            return false;
+        }
+
+        protected void abortTxn(Txn txn) {
+        }
+    }
+}
-- 
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