issue #66 : add Inherited annotation to support base (abstract) classes as rules

easyrules-core/src/main/java/org/easyrules/annotation/Action.java

@@ -23,10 +23,7 @@
  */
 package org.easyrules.annotation;
 
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+import java.lang.annotation.*;
 
 /**
  * Annotation to mark a method as a rule action.
@@ -35,6 +32,8 @@ import java.lang.annotation.Target;
  *
  * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
  */
+
+@Inherited
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.METHOD)
 public @interface Action {

easyrules-core/src/main/java/org/easyrules/annotation/Condition.java

@@ -23,10 +23,7 @@
  */
 package org.easyrules.annotation;
 
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+import java.lang.annotation.*;
 
 /**
  * Annotation to mark a method as a rule condition.
@@ -34,6 +31,8 @@ import java.lang.annotation.Target;
  *
  * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
  */
+
+@Inherited
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.METHOD)
 public @interface Condition {

easyrules-core/src/main/java/org/easyrules/annotation/Priority.java

@@ -23,10 +23,7 @@
  */
 package org.easyrules.annotation;
 
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+import java.lang.annotation.*;
 
 /**
  * Annotation to mark the method to execute to get rule priority.
@@ -34,6 +31,8 @@ import java.lang.annotation.Target;
  *
  * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
  */
+
+@Inherited
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.METHOD)
 public @interface Priority {

easyrules-core/src/main/java/org/easyrules/annotation/Rule.java

@@ -23,16 +23,15 @@
  */
 package org.easyrules.annotation;
 
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+import java.lang.annotation.*;
 
 /**
  * Annotation to mark a class as a rule.
  *
  * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
  */
+
+@Inherited
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
 public @interface Rule {

easyrules-core/src/test/java/org/easyrules/EasyRulesTestSuite.java

@@ -35,6 +35,7 @@ import org.junit.runners.Suite;
  */
 @RunWith(Suite.class)
 @Suite.SuiteClasses({
+        AnnotationInheritanceTest.class,
         BasicRuleTest.class,
         RulePriorityThresholdTest.class,
         SkipOnFirstAppliedRuleTest.class,

easyrules-core/src/test/java/org/easyrules/core/AnnotationInheritanceTest.java

@@ -0,0 +1,64 @@
+/**
+ * The MIT License
+ *
+ *  Copyright (c) 2017, Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
+ *
+ *  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 org.easyrules.core;
+
+import org.easyrules.annotation.Action;
+import org.easyrules.annotation.Condition;
+import org.easyrules.api.RulesEngine;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class AnnotationInheritanceTest {
+
+    @Test
+    public void annotationsShouldBeInherited() throws Exception {
+        MyChildRule myChildRule = new MyChildRule();
+        RulesEngine rulesEngine = RulesEngineBuilder.aNewRulesEngine().build();
+        rulesEngine.registerRule(myChildRule);
+        rulesEngine.fireRules();
+
+        assertThat(myChildRule.isExecuted()).isTrue();
+    }
+
+    @org.easyrules.annotation.Rule
+    class MyBaseRule {
+        protected boolean executed;
+        @Condition
+        public boolean when() {
+            return true;
+        }
+        @Action
+        public void then() {
+            executed = true;
+        }
+        public boolean isExecuted() {
+            return executed;
+        }
+    }
+
+    class MyChildRule extends MyBaseRule {
+
+    }
+}