2 files changed, 27 insertions, 5 deletions
diff --git a/sonar-check-api/src/main/java/org/sonar/check/Cardinality.java b/sonar-check-api/src/main/java/org/sonar/check/Cardinality.java
new file mode 100644
index 00000000000..deaa4f3bfaf
--- /dev/null
+++ b/sonar-check-api/src/main/java/org/sonar/check/Cardinality.java
@@ -0,0 +1,27 @@
+/*
+ * Sonar, open source software quality management tool.
+ * Copyright (C) 2009 SonarSource SA
+ * mailto:contact AT sonarsource DOT com
+ *
+ * Sonar is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * Sonar is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Sonar; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
+ */
+package org.sonar.check;
+
+/**
+ * @since 2.3
+ */
+public enum Cardinality {
+  SINGLE, MULTIPLE
+}
diff --git a/sonar-check-api/src/main/java/org/sonar/check/Rule.java b/sonar-check-api/src/main/java/org/sonar/check/Rule.java
index 05989e614d9..20c4cb0e34c 100644
--- a/sonar-check-api/src/main/java/org/sonar/check/Rule.java
+++ b/sonar-check-api/src/main/java/org/sonar/check/Rule.java
@@ -31,11 +31,6 @@ import java.lang.annotation.Target;
 @Target(ElementType.TYPE)
 public @interface Rule {
 
-  static enum Cardinality {
-    SINGLE, MULTIPLE
-  }
-
-
   /**
    * The default key is the class name.
    */