1 files changed, 0 insertions, 109 deletions
diff --git a/src/main/java/com/amazon/carbonado/spi/TransactionPair.java b/src/main/java/com/amazon/carbonado/spi/TransactionPair.java
deleted file mode 100644
index ff07bc2..0000000
--- a/src/main/java/com/amazon/carbonado/spi/TransactionPair.java
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright 2006 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.TimeUnit;
-
-import com.amazon.carbonado.IsolationLevel;
-import com.amazon.carbonado.PersistException;
-import com.amazon.carbonado.Transaction;
-
-/**
- * Pairs two transaction together into one. The transaction cannot be atomic,
- * however. Inconsistencies can result if the primary transaction succeeds in
- * committing, but the secondary fails. Therefore, the designated primary
- * transaction should be the one that is more likely to fail. For example, the
- * primary transaction might rely on the network, but the secondary operates
- * locally.
- *
- * @author Don Schneider
- * @author Brian S O'Neill
- */
-public class TransactionPair implements Transaction {
-    private final Transaction mPrimaryTransaction;
-    private final Transaction mSecondaryTransaction;
-
-    /**
-     * @param primaryTransaction is committed first, exited last
-     * @param secondaryTransaction is exited first, commited last
-     */
-    public TransactionPair(Transaction primaryTransaction, Transaction secondaryTransaction) {
-        mPrimaryTransaction = primaryTransaction;
-        mSecondaryTransaction = secondaryTransaction;
-    }
-
-    public void commit() throws PersistException {
-        mPrimaryTransaction.commit();
-        try {
-            mSecondaryTransaction.commit();
-        } catch (Exception e) {
-            throw new PersistException
-                ("Failure to commit secondary transaction has likely caused an inconsistency", e);
-        }
-    }
-
-    public void exit() throws PersistException {
-        try {
-            mSecondaryTransaction.exit();
-        } finally {
-            // Do this second so if there is an exception, the user sees the
-            // primary exception, which is presumably more important.
-            mPrimaryTransaction.exit();
-        }
-    }
-
-    public void setForUpdate(boolean forUpdate) {
-        mPrimaryTransaction.setForUpdate(forUpdate);
-        mSecondaryTransaction.setForUpdate(forUpdate);
-    }
-
-    public boolean isForUpdate() {
-        return mPrimaryTransaction.isForUpdate() && mSecondaryTransaction.isForUpdate();
-    }
-
-    public void setDesiredLockTimeout(int timeout, TimeUnit unit) {
-        mPrimaryTransaction.setDesiredLockTimeout(timeout, unit);
-        mSecondaryTransaction.setDesiredLockTimeout(timeout, unit);
-    }
-
-    public IsolationLevel getIsolationLevel() {
-        return mPrimaryTransaction.getIsolationLevel()
-            .lowestCommon(mSecondaryTransaction.getIsolationLevel());
-    }
-
-    public void detach() {
-        mPrimaryTransaction.detach();
-        try {
-            mSecondaryTransaction.detach();
-        } catch (IllegalStateException e) {
-            mPrimaryTransaction.attach();
-            throw e;
-        }
-    }
-
-    public void attach() {
-        mPrimaryTransaction.attach();
-        try {
-            mSecondaryTransaction.attach();
-        } catch (IllegalStateException e) {
-            mPrimaryTransaction.detach();
-            throw e;
-        }
-    }
-}