ItEr31S12ValidacionEProbasFuncionaisItEr30S17: Adding method to move the start of a task and its allocations

navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/Task.java

@@ -275,5 +275,10 @@ public class Task extends TaskElement {
         }
     }
 
+    @Override
+    protected void moveAllocations() {
+
+    }
+
 }
 

navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskElement.java

@@ -139,6 +139,17 @@ public abstract class TaskElement extends BaseEntity {
         this.startDate = startDate;
     }
 
+    /**
+     * Sets the startDate to newStartDate. It can update the endDate
+     * @param newStartDate
+     */
+    public void moveTo(Date newStartDate) {
+        this.startDate = newStartDate;
+        moveAllocations();
+    }
+
+    protected abstract void moveAllocations();
+
     public Date getEndDate() {
         return endDate;
     }

navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskGroup.java

@@ -168,4 +168,8 @@ public class TaskGroup extends TaskElement {
         return result;
     }
 
+    @Override
+    protected void moveAllocations() {
+        // do nothing
+    }
 }

navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/TaskMilestone.java

@@ -120,4 +120,8 @@ public class TaskMilestone extends TaskElement implements IValidable {
 
     }
 
+    @Override
+    protected void moveAllocations() {
+        // do nothing
+    }
 }