diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
index e98d7b5..46ca155 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
@@ -48,7 +48,7 @@ import com.tinkerpop.blueprints.Direction;
  * @author Luca Frosini (ISTI - CNR)
  */
 @Path(AccessPath.ACCESS_PATH_PART)
-public class Access {
+public class Access extends BaseRest {
 	
 	private static Logger logger = LoggerFactory.getLogger(Access.class);
 	
@@ -180,7 +180,7 @@ public class Access {
 			@QueryParam(AccessPath.POLYMORPHIC_PARAM) @DefaultValue("true") Boolean polymorphic)
 			throws NotFoundException, ResourceRegistryException {
 		logger.info("Requested all {}instances of {}", polymorphic ? AccessPath.POLYMORPHIC_PARAM + " " : "", type);
-		
+		setHierarchicalMode();
 		/*
 		List<String> pathValues = new ArrayList<>();
 		pathValues.add(AccessPath.INSTANCES_PATH_PART);
@@ -207,8 +207,9 @@ public class Access {
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
 	public Response instanceExists(@PathParam(AccessPath.TYPE_PATH_PARAM) String type,
 			@PathParam(AccessPath.UUID_PATH_PARAM) String uuid) throws NotFoundException, ResourceRegistryException {
-		
 		logger.info("Requested to check if {} with id {} exists", type, uuid);
+		setHierarchicalMode();
+		
 		/*
 		List<String> pathValues = new ArrayList<>();
 		pathValues.add(AccessPath.INSTANCES_PATH_PART);
@@ -252,6 +253,8 @@ public class Access {
 	public String getInstance(@PathParam(AccessPath.TYPE_PATH_PARAM) String type,
 			@PathParam(AccessPath.UUID_PATH_PARAM) String uuid) throws NotFoundException, ResourceRegistryException {
 		logger.info("Requested to read {} with id {}", type, uuid);
+		setHierarchicalMode();
+		
 		/*
 		List<String> pathValues = new ArrayList<>();
 		pathValues.add(AccessPath.INSTANCES_PATH_PART);
@@ -300,6 +303,7 @@ public class Access {
 			@QueryParam(AccessPath.RAW_PARAM) @DefaultValue(AccessPath.DEFAULT_RAW_PARAM) Boolean raw)
 			throws InvalidQueryException {
 		logger.info("Requested query (fetch plan {}, limit : {}, Raw : raw):\n{}", fetchPlan, limit, query, raw);
+		setHierarchicalMode();
 		//setRESTCalledMethodLocal(HTTPMETHOD.GET, AccessPath.QUERY_PATH_PART);
 		CalledMethodProvider.instance.set("rawQuery");
 		
@@ -347,6 +351,7 @@ public class Access {
 		
 		logger.info("Requested {} instances having a(n) {} ({}={}} with {} ({}={})", resourcetype, relationType,
 				AccessPath.DIRECTION_PARAM, direction, referenceType, AccessPath.POLYMORPHIC_PARAM, polymorphic);
+		setHierarchicalMode();
 		
 		/*
 		List<String> pathValues = new ArrayList<>();
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/BaseRest.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/BaseRest.java
new file mode 100644
index 0000000..5d52b14
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/BaseRest.java
@@ -0,0 +1,36 @@
+package org.gcube.informationsystem.resourceregistry.rest;
+
+import java.util.List;
+
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.UriInfo;
+
+import org.gcube.informationsystem.resourceregistry.api.rest.InstancePath;
+import org.gcube.informationsystem.resourceregistry.contexts.ContextUtility;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class BaseRest {
+	
+	private static Logger logger = LoggerFactory.getLogger(InstancesManager.class);
+
+	@Context
+	protected UriInfo uriInfo;
+	
+	protected void setHierarchicalMode() {
+		try {
+			List<String> hierarchicalQueryParameterList = uriInfo.getQueryParameters().get(InstancePath.HIERARCHICAL_MODE_PARAM);
+			if(hierarchicalQueryParameterList!=null && hierarchicalQueryParameterList.size()>0) {
+				String hierarchicalBooleanString = hierarchicalQueryParameterList.get(0);
+				boolean hierarchical = Boolean.valueOf(hierarchicalBooleanString);
+				if(hierarchical) {
+					logger.info("The request was performed in hierarchical mode. Going to set it.");
+					ContextUtility.getHierarchicalMode().set(hierarchical);					
+				}
+			}
+		}catch (Throwable t) {
+			logger.warn("Unable to properly set the Hierarchical Mode is set", t.getMessage());
+		}
+	}
+	
+}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/InstancesManager.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/InstancesManager.java
index 0106036..a48a2bf 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/InstancesManager.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/InstancesManager.java
@@ -32,7 +32,7 @@ import org.slf4j.LoggerFactory;
  * @author Luca Frosini (ISTI - CNR)
  */
 @Path(InstancePath.INSTANCES_PATH_PART)
-public class InstancesManager {
+public class InstancesManager extends BaseRest {
 	
 	private static Logger logger = LoggerFactory.getLogger(InstancesManager.class);
 	
@@ -69,6 +69,7 @@ public class InstancesManager {
 			@QueryParam(InstancePath.POLYMORPHIC_PARAM) @DefaultValue("true") Boolean polymorphic)
 			throws NotFoundException, ResourceRegistryException {
 		logger.info("Requested all {}instances of {}", polymorphic ? InstancePath.POLYMORPHIC_PARAM + " " : "", type);
+		setHierarchicalMode();
 		/*
 		Map<String,String> map = new HashMap<String,String>();
 		map.put(InstancePath.POLYMORPHIC_PARAM, polymorphic.toString());
@@ -94,6 +95,7 @@ public class InstancesManager {
 			@PathParam(AccessPath.UUID_PATH_PARAM) String uuid) throws NotFoundException, ResourceRegistryException {
 		logger.info("Requested to check if {} with id {} exists", type, uuid);
 		//setRESTCalledMethod(HTTPMETHOD.HEAD, type, true);
+		setHierarchicalMode();
 		CalledMethodProvider.instance.set("existInstance");
 		
 		@SuppressWarnings("rawtypes")
@@ -130,6 +132,7 @@ public class InstancesManager {
 	public String read(@PathParam(AccessPath.TYPE_PATH_PARAM) String type,
 			@PathParam(AccessPath.UUID_PATH_PARAM) String uuid) throws NotFoundException, ResourceRegistryException {
 		logger.info("Requested to read {} with id {}", type, uuid);
+		setHierarchicalMode();
 		// setRESTCalledMethod(HTTPMETHOD.GET, type, true);
 		CalledMethodProvider.instance.set("readInstance");