[LMS-2332] add getMaterialIdentifier() method to IMaterialImmutable

SVN: 21913

datastore_server/source/java/ch/systemsx/cisd/etlserver/registrator/api/v1/impl/MaterialImmutable.java

@@ -41,6 +41,11 @@ public class MaterialImmutable implements IMaterialImmutable
         this.existingMaterial = existingMaterial;
     }
 
+    public String getMaterialIdentifier()
+    {
+        return material.getIdentifier();
+    }
+
     public String getCode()
     {
         return material.getCode();
@@ -80,4 +85,5 @@ public class MaterialImmutable implements IMaterialImmutable
     {
         return EntityHelper.tryFindPropertyValue(material, propertyCode);
     }
+
 }

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/shared/api/internal/IMaterialImmutable.java

@@ -22,6 +22,11 @@ package ch.systemsx.cisd.openbis.dss.generic.shared.api.internal;
 public interface IMaterialImmutable
 {
 
+    /**
+     * Return the identifier for this material.
+     */
+    String getMaterialIdentifier();
+
     /**
      * Return the code for this material.
      */