Hello Ismail, First of all Apache OFBiz is a *service oriented architecture *and you will *find a service* for all the CRUD operations.You can find a service using https://localhost:8443/webtools/control/ServiceList .
Alternately, you can create a new service with *service-engine as entity-auto* that performs the operations automatically like this service created in OOTB. <service name="updatePartyAttribute" default-entity-name="PartyAttribute" engine="entity-auto" invoke="update" auth="true"> <description>updates a party attribute record</description> <permission-service service-name="partyBasePermissionCheck" main-action="UPDATE"/> <auto-attributes include="pk" mode="IN" optional="false"/> <auto-attributes include="nonpk" mode="IN" optional="true"/> </service> Here you don't have to implement the service. If you still prefer to create your own service. Here is the code *GenericValue entityRecord = EntityQuery.use(delegator).from(EntityName).where("primaryKeyFieldName", primaryKeyFieldValue).queryOne();* *---fetching record from entity* *entityRecord.setNonPKFields(parameters, true);* *--- sets all values from parameter Map and true is setIfEmpty field which is used to specify whether empty/null values in the parameters Map should over-write non-empty values in this entity* *entityRecord.store();* *----store the updated values in entity* Thanks & Regards, Aditya Sharma Enterprise Software Engineer Hotwax Systems http://www.hotwaxsystems.com/ On Mon, Apr 3, 2017 at 2:53 PM, Ismail Al Kouz <ialk...@bi-bst.com> wrote: > Hello Dears. > > How I can update field on entity using Java . > > Thanks > > > Best Regards, > >