add info

saga/src/main/java/com/iluwatar/saga/choreography/Chapter.java

@@ -0,0 +1,53 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.saga.choreography;
+
+import com.iluwatar.saga.orchestration.ChapterResult;
+
+/**
+ * Chapter is an interface representing a contract for an external service.
+ * @param <K> is type for passing params
+ */
+public interface Chapter<K> {
+
+    /**
+     * @return service name.
+     */
+    String getName();
+
+    /**
+     * The operation executed in general case.
+     * @param value incoming value
+     * @return result {@link ChapterResult}
+     */
+    ChapterResult<K> process(K value);
+
+    /**
+     * The operation executed in rollback case.
+     * @param value incoming value
+     * @return result {@link ChapterResult}
+     */
+    ChapterResult<K> rollback(K value);
+
+
+}

saga/src/main/java/com/iluwatar/saga/choreography/Saga.java

@@ -0,0 +1,34 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.saga.choreography;
+
+/**
+ * Saga representation.
+ * Saga consists of chapters.
+ * Every Chapter is executed a certain service.
+ */
+public class Saga {
+
+
+
+}

saga/src/main/java/com/iluwatar/saga/orchestration/Saga.java

@@ -27,7 +27,7 @@ import java.util.List;
 
 /**
  * Saga representation.
- * Saca consists of chapters.
+ * Saga consists of chapters.
  * Every Chapter is executed a certain service.
  */
 public class Saga {