#919 - io.ebean package initial

src/main/java/io/ebeaninternal/server/transaction/TransactionFactory.java

@@ -0,0 +1,60 @@
+package io.ebeaninternal.server.transaction;
+
+import io.ebeaninternal.api.SpiTransaction;
+import io.ebeaninternal.util.JdbcClose;
+import org.slf4j.Logger;
+
+import javax.persistence.PersistenceException;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * Creates transactions with implementations for basic mode and multi-tenancy mode.
+ */
+abstract class TransactionFactory {
+
+  static final Logger TXN_LOGGER = TransactionManager.TXN_LOGGER;
+
+  final AtomicLong counter = new AtomicLong(1000);
+
+  final TransactionManager manager;
+
+  TransactionFactory(TransactionManager manager) {
+    this.manager = manager;
+  }
+
+  /**
+   * Return a new query only transaction.
+   *
+   * @param tenantId The tenantId for lazy loading queries.
+   */
+  abstract SpiTransaction createQueryTransaction(Object tenantId);
+
+  /**
+   * Return a new transaction.
+   */
+  abstract SpiTransaction createTransaction(boolean explicit, int isolationLevel);
+
+  /**
+   * Set the Transaction Isolation level if required.
+   */
+  SpiTransaction setIsolationLevel(SpiTransaction t, boolean explicit, int isolationLevel) {
+
+    if (isolationLevel > -1) {
+      Connection connection = t.getConnection();
+      try {
+        connection.setTransactionIsolation(isolationLevel);
+      } catch (SQLException e) {
+        JdbcClose.close(connection);
+        throw new PersistenceException(e);
+      }
+    }
+
+    if (explicit && TXN_LOGGER.isTraceEnabled()) {
+      TXN_LOGGER.trace(t.getLogPrefix() + "Begin");
+    }
+
+    return t;
+  }
+}