Expose resetValue method to IProjectProperty interface. Make it possible to reset property value

Signed-off-by: Winston Prakash <winston.prakash@gmail.com>

3 files changed, 30 insertions, 2 deletions

diff --git a/hudson-core/src/main/java/hudson/model/BaseProjectProperty.java b/hudson-core/src/main/java/hudson/model/BaseProjectProperty.java
index 9e8ad62..b89ba77 100644
--- a/hudson-core/src/main/java/hudson/model/BaseProjectProperty.java
+++ b/hudson-core/src/main/java/hudson/model/BaseProjectProperty.java
@@ -129,12 +129,19 @@ public class BaseProjectProperty<T> implements IProjectProperty<T> {
             originalValue = value;
             setPropertyOverridden(true);
         } else {
-            this.originalValue = null;
-            setPropertyOverridden(false);
+            resetValue();
         }
     }
 
     /**
+     * {@inheritDoc}
+     */
+    public void resetValue() {
+        this.originalValue = null;
+        setPropertyOverridden(false);
+    }
+
+    /**
      * Returns true, if cascading value should be overridden by candidate value.
      *
      * @param cascadingValue value from cascading project if any.
diff --git a/hudson-core/src/main/java/org/eclipse/hudson/api/model/IProjectProperty.java b/hudson-core/src/main/java/org/eclipse/hudson/api/model/IProjectProperty.java
index bac6097..48fae06 100644
--- a/hudson-core/src/main/java/org/eclipse/hudson/api/model/IProjectProperty.java
+++ b/hudson-core/src/main/java/org/eclipse/hudson/api/model/IProjectProperty.java
@@ -80,4 +80,9 @@ public interface IProjectProperty<T> extends Serializable {
      * @return value
      */
     T getDefaultValue();
+
+    /**
+     * Resets value for given job. Default implementation sets Null value and resets propertyOverridden flag to false.
+     */
+    void resetValue();
 }
diff --git a/hudson-core/src/test/java/hudson/model/ProjectPropertyTest.java b/hudson-core/src/test/java/hudson/model/ProjectPropertyTest.java
index 57744d7..27a259d 100644
--- a/hudson-core/src/test/java/hudson/model/ProjectPropertyTest.java
+++ b/hudson-core/src/test/java/hudson/model/ProjectPropertyTest.java
@@ -341,4 +341,20 @@ public class ProjectPropertyTest {
             fail("PropertyKey is valid");
         }
     }
+
+    /**
+     * Resets project property value,
+     */
+    @Test
+    public void testResetValue() {
+        BaseProjectProperty property = new BaseProjectProperty(project);
+        property.setKey(propertyKey);
+        property.setValue(new Object());
+        property.setPropertyOverridden(true);
+        assertNotNull(property.getOriginalValue());
+        assertTrue(property.isPropertyOverridden());
+        property.resetValue();
+        assertNull(property.getOriginalValue());
+        assertFalse(property.isPropertyOverridden());
+    }
 }