diff --git a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/AbstractValidator.java b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/AbstractValidator.java
index bda42a5..83c1d55 100644
--- a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/AbstractValidator.java
+++ b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/AbstractValidator.java
@@ -160,6 +160,23 @@
 	 */
 	public void validationFinishing(IProject project, ValidationState state, IProgressMonitor monitor){		
 	}
+	
+	/**
+	 * Should the validation framework first clear the markers that this
+	 * validator has placed on this resource? This method can be overridden by
+	 * validator implementors to provide a validator specific behavior.
+	 * 
+	 * @param event
+	 *            The validation event that triggered the validation.
+	 * @return true if the validation framework should first clear all the
+	 *         markers that this validator produced. This is the default
+	 *         behavior. Return false to leave the markers unchanged. It then
+	 *         becomes the responsibility of the validator to manage it's own
+	 *         markers for this resource, for this validation event.
+	 */
+	public boolean shouldClearMarkers(ValidationEvent event){
+		return true;
+	}
 		
 	/**
 	 * Answer the validator that you belong to. The validator controls the
diff --git a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/Validator.java b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/Validator.java
index f79cc6d..151317f 100644
--- a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/Validator.java
+++ b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/Validator.java
@@ -208,6 +208,23 @@
 	}
 	
 	/**
+	 * Should the validation framework first clear the markers that this
+	 * validator has placed on this resource? This method can be overridden by
+	 * validator implementors to provide a validator specific behavior.
+	 * 
+	 * @param event
+	 *            The validation event that triggered the validation.
+	 * @return true if the validation framework should first clear all the
+	 *         markers that this validator produced. This is the default
+	 *         behavior. Return false to leave the markers unchanged. It then
+	 *         becomes the responsibility of the validator to manage it's own
+	 *         markers for this resource, for this validation event.
+	 */
+	public boolean shouldClearMarkers(ValidationEvent event){
+		return true;
+	}
+	
+	/**
 	 * Answer true if this validator, based on it's filters, should validate
 	 * this resource. This method does not check to see if global validation or
 	 * project validation has been suspended or not.
@@ -1014,6 +1031,11 @@
 	boolean isLoaded() {
 		return _validator != null;
 	}
+	
+	@Override
+	public boolean shouldClearMarkers(ValidationEvent event) {
+		return getValidator().shouldClearMarkers(event);
+	}
 		
 	/**
 	 * Answer true if this validator, based on it's filters, should validate this resource.
diff --git a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/internal/ValBuilderJob.java b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/internal/ValBuilderJob.java
index 5d3ab2b..5ab8edb 100644
--- a/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/internal/ValBuilderJob.java
+++ b/plugins/org.eclipse.wst.validation/vf2/org/eclipse/wst/validation/internal/ValBuilderJob.java
@@ -189,6 +189,7 @@
 		
 	}
 
+	@SuppressWarnings("deprecation")
 	public boolean visit(IResourceDelta delta) throws CoreException {
 		IResource resource = delta.getResource();
 		if (DisabledResourceManager.getDefault().isDisabled(resource)){
@@ -208,11 +209,12 @@
 		if (index.isDependedOn(resource)){
 			MarkerManager mm = MarkerManager.getDefault();
 			for (DependentResource dr : index.get(resource)){
-				if (Friend.shouldValidate(dr.getValidator(), dr.getResource(), ValType.Build, new ContentTypeWrapper())){
-					mm.clearMarker(dr.getResource(), dr.getValidator()); 
+				Validator val = dr.getValidator();
+				if (Friend.shouldValidate(val, dr.getResource(), ValType.Build, new ContentTypeWrapper())){
 					_request.getOperation().getState().put(ValidationState.TriggerResource, resource);
 					ValidationEvent event = new ValidationEvent(dr.getResource(), IResourceDelta.NO_CHANGE, delta);
-					ValManager.getDefault().validate(dr.getValidator(), _request.getOperation(), dr.getResource(), 
+					if (val.shouldClearMarkers(event))mm.clearMarker(dr.getResource(), val); 
+					ValManager.getDefault().validate(val, _request.getOperation(), dr.getResource(), 
 						IResourceDelta.NO_CHANGE, _monitor, event);
 				}
 			}