#203: ENH: Add Transaction hook ... for preCommit(), postCommit(), postRollback()

src/main/java/com/avaje/ebean/TransactionCallback.java

@@ -0,0 +1,34 @@
+package com.avaje.ebean;
+
+/**
+ * Provides a callback that can be registered with a Transaction.
+ * <p/>
+ * The callback methods are called just prior to and after the transaction performs a commit or rollback.
+ * <p/>
+ * A typical use of TransactionCallback would be to clean up non-transactional resources like files. For example,
+ * when processing files on postCommit/postRollback clean up the associated files. As another example when
+ * on postCommit of a delete remove associated resources from the file system or remote service.
+ */
+public interface TransactionCallback {
+
+  /**
+   * Perform processing just prior to the transaction commit.
+   */
+  void preCommit();
+
+  /**
+   * Perform processing just after the transaction commit.
+   */
+  void postCommit();
+
+  /**
+   * Perform processing just prior to the transaction rollback.
+   */
+  void preRollback();
+
+  /**
+   * Perform processing just after the transaction rollback.
+   */
+  void postRollback();
+
+}