From ca6d4484142d8144f7567a37ed448babe294fda8 Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Sun, 20 Dec 2009 02:54:41 +0000
Subject: Allow transaction to attach if existing scope is inactive.

---
 src/main/java/com/amazon/carbonado/txn/TransactionManager.java |  2 +-
 src/main/java/com/amazon/carbonado/txn/TransactionScope.java   | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/amazon/carbonado/txn/TransactionManager.java b/src/main/java/com/amazon/carbonado/txn/TransactionManager.java
index 528ade5..36d2e22 100644
--- a/src/main/java/com/amazon/carbonado/txn/TransactionManager.java
+++ b/src/main/java/com/amazon/carbonado/txn/TransactionManager.java
@@ -98,7 +98,7 @@ public abstract class TransactionManager<Txn> {
     // Called by TransactionScope.
     boolean setLocalScope(TransactionScope<Txn> scope, boolean detached) {
         TransactionScope<Txn> existing = mLocalScope.get();
-        if ((existing == null && detached) || existing == scope) {
+        if (((existing == null || existing.isInactive()) && detached) || existing == scope) {
             mLocalScope.set(scope);
             return true;
         }
diff --git a/src/main/java/com/amazon/carbonado/txn/TransactionScope.java b/src/main/java/com/amazon/carbonado/txn/TransactionScope.java
index 29c173c..bce8ca6 100644
--- a/src/main/java/com/amazon/carbonado/txn/TransactionScope.java
+++ b/src/main/java/com/amazon/carbonado/txn/TransactionScope.java
@@ -258,6 +258,16 @@ public class TransactionScope<Txn> {
         }
     }
 
+    // Called by TransactionManager.
+    boolean isInactive() {
+        mLock.lock();
+        try {
+            return mActive == null;
+        } finally {
+            mLock.unlock();
+        }
+    }
+
     /**
      * Exits all transactions and closes all cursors. Should be called only
      * when repository is closed.
-- 
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