diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
index ad1e8e309..5059dc364 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
@@ -39,6 +39,21 @@ import org.navalplanner.business.resources.entities.Resource;
 
 public abstract class DayAssignment extends BaseEntity {
 
+    public static <T extends DayAssignment> List<T> getAtInterval(
+            List<T> orderedAssignments, LocalDate startInclusive,
+            LocalDate endExclusive) {
+        List<T> result = new ArrayList<T>();
+        for (T dayAssignment : orderedAssignments) {
+            if (dayAssignment.getDay().compareTo(endExclusive) >= 0) {
+                break;
+            }
+            if (dayAssignment.includedIn(startInclusive, endExclusive)) {
+                result.add(dayAssignment);
+            }
+        }
+        return result;
+    }
+
     public static int sum(Collection<? extends DayAssignment> assignments) {
         int result = 0;
         for (DayAssignment dayAssignment : assignments) {
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
index 00711beaf..1a710792e 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
@@ -577,19 +577,10 @@ public abstract class ResourceAllocation<T extends DayAssignment> extends
 
     public List<DayAssignment> getAssignments(LocalDate start,
             LocalDate endExclusive) {
-        List<DayAssignment> result = new ArrayList<DayAssignment>();
-        for (DayAssignment dayAssignment : getAssignments()) {
-            if (dayAssignment.getDay().compareTo(endExclusive) >= 0) {
-                break;
-            }
-            if (dayAssignment.includedIn(start, endExclusive)) {
-                result.add(dayAssignment);
-            }
-        }
-        return result;
+        return new ArrayList<DayAssignment>(DayAssignment.getAtInterval(
+                getAssignments(), start, endExclusive));
     }
 
-
     public int getAssignedHours(LocalDate start, LocalDate endExclusive) {
         return getAssignedHours(getAssignments(start, endExclusive));
     }