diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
index 5cb34723d..51f17fc68 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/orders/entities/Orders.hbm.xml
@@ -28,11 +28,13 @@
         </set>
 
 		<set name="labels" table="ORDER_ELEMENT_LABEL" access="field" cascade="all">
+            <cache usage="read-write"/>
 			<key column="ORDER_ELEMENT_ID" not-null="true"/>
 			<many-to-many column="LABEL_ID" class="org.navalplanner.business.labels.entities.Label" />
 		</set>
 
         <set name="criterionRequirements" access="field" cascade="all,delete-orphan" inverse="true">
+            <cache usage="read-write"/>
             <key column="ORDER_ELEMENT_ID" not-null="false"></key>
             <one-to-many class="org.navalplanner.business.requirements.entities.CriterionRequirement"/>
         </set>
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/requirements/entities/Requirements.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/requirements/entities/Requirements.hbm.xml
index 64d70633b..6df9a0085 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/requirements/entities/Requirements.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/requirements/entities/Requirements.hbm.xml
@@ -2,6 +2,7 @@
 <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
 <hibernate-mapping package="org.navalplanner.business.requirements.entities">
   <class name="CriterionRequirement">
+    <cache usage="read-write"/>
     <id access="property" name="id" type="long">
       <generator class="hilo">
         <param name="max_lo">100</param>
@@ -18,6 +19,7 @@
 
     <subclass discriminator-value="DIRECT" name="DirectCriterionRequirement">
       <set access="field" name="children" cascade="delete-orphan" inverse="true">
+        <cache usage="read-write"/>
         <key column="parent"/>
         <one-to-many class="IndirectCriterionRequirement"/>
       </set>
diff --git a/navalplanner-business/src/main/resources/org/navalplanner/business/resources/entities/Resources.hbm.xml b/navalplanner-business/src/main/resources/org/navalplanner/business/resources/entities/Resources.hbm.xml
index 48b6b996f..64b5a1d85 100644
--- a/navalplanner-business/src/main/resources/org/navalplanner/business/resources/entities/Resources.hbm.xml
+++ b/navalplanner-business/src/main/resources/org/navalplanner/business/resources/entities/Resources.hbm.xml
@@ -54,6 +54,7 @@
 
   <!-- Criterion -->
   <class name="Criterion">
+    <cache usage="read-write"/>
     <id name="id" access="property" type="long">
       <generator class="hilo">
         <param name="max_lo">100</param>
@@ -67,6 +68,7 @@
     <many-to-one name="parent" column="parent" access="field" not-null="false"/>
 
     <set name="children" access="field" lazy="true" cascade="save-update">
+        <cache usage="read-write"/>
         <key column="parent" not-null="false"></key>
         <one-to-many class="Criterion"/>
     </set>
@@ -85,6 +87,7 @@
 
   <!-- CriterionSatisfaction -->
   <class name="CriterionSatisfaction">
+    <cache usage="read-write"/>
     <id name="id" access="property" type="long">
       <generator class="hilo">
         <param name="max_lo">100</param>
@@ -100,6 +103,7 @@
 
   <!-- CriterionType -->
   <class name="CriterionType">
+    <cache usage="read-write"/>
     <id name="id" access="property" type="long">
       <generator class="hilo"/>
     </id>