java - How to update the Hibernate Entity Record when only few fields of entity obj are modified and remaining fields should not be null -


is there other different solution code. every pojo class have check modified data coming browser , store modified data database.

see below billingtax obj coming browser updated data , billingtaxdbobject obj retrieved database , check if condition whether updated data changed or not

if pojo class has 20 fields, have write 20 if conditions if pojo class has 5 fields, have write 5 if conditions

instead of writing if conditions checking wheter data modified or nor there other simplest way?

@override      public billingtax update(billingtax billingtax) throws datainsufficientexception, recordnotfoundexception {         log.debug("billingtaxserviceimpl.update()....................");     try {          if (billingtax == null)             throw new datainsufficientexception("billingtax object null");          billingtax billingtaxdbobject = get(billingtax.getid());          if (billingtaxdbobject == null)             throw new recordnotfoundexception("billingtax object not found in database");          if (billingtax.gettaxapplytype() != null                 && !billingtax.gettaxapplytype().equals(billingtaxdbobject.gettaxapplytype()))             billingtaxdbobject.settaxapplytype(billingtax.gettaxapplytype());          if (billingtax.getcode() != null && !billingtax.getcode().trim().equalsignorecase("null")                 && !billingtax.getcode().equalsignorecase(billingtaxdbobject.getcode()))             billingtaxdbobject.setcode(billingtax.getcode());          if (billingtax.getname() != null && !billingtax.getname().trim().equalsignorecase("null")                 && !billingtax.getname().equalsignorecase(billingtaxdbobject.getname()))             billingtaxdbobject.setname(billingtax.getname());          if (billingtax.getdescription() != null && !billingtax.getdescription().trim().equalsignorecase("null")                 && !billingtax.getdescription().equalsignorecase(billingtaxdbobject.getdescription()))             billingtaxdbobject.setdescription(billingtax.getdescription());          if (billingtax.getservicetypefortax() != null                 && !billingtax.getservicetypefortax().equals(billingtaxdbobject.getservicetypefortax()))             billingtaxdbobject.setservicetypefortax(billingtax.getservicetypefortax());          if (billingtax.gettaxvalue() != null && !billingtax.gettaxvalue().equals("null")                 && !billingtax.gettaxvalue().equals(billingtaxdbobject.gettaxvalue()))             billingtaxdbobject.settaxvalue(billingtax.gettaxvalue());          if (billingtax.getstatus() != null && !billingtax.getstatus().equals(billingtaxdbobject.getstatus()))             billingtaxdbobject.setstatus(billingtax.getstatus());          if (billingtax.getorderno() != null && !billingtax.getorderno().equals("null")                 && !billingtax.getorderno().equals(billingtaxdbobject.getorderno()))             billingtaxdbobject.setorderno(billingtax.getorderno());          if (billingtax.getid() != null && !billingtax.getid().trim().equalsignorecase(billingtaxdbobject.getid())                 && !billingtax.getid().equalsignorecase(billingtaxdbobject.getid()))             billingtaxdbobject.setid(billingtax.getid());          if (billingtax.getstartdate()!= null && !billingtax.getstartdate().equals(billingtaxdbobject.getstartdate()))             billingtaxdbobject.setstartdate(billingtax.getstartdate());          if (billingtax.getenddate()!= null && !billingtax.getenddate().equals(billingtaxdbobject.getenddate()))             billingtaxdbobject.setenddate(billingtax.getenddate());          billingtaxdbobject.setupdateddate(new date());         return billingtaxdao.update(billingtaxdbobject);      } catch (exception e) {         log.error("billingtaxserviceimpl.update()....................exception:" + e.getmessage());         throw e;     } }

you can dynamic updates hibernate if can avoid check changes among dto , entity , update fields come web. if need check dto web , entity can use apache bean util find changed values (or use spring util if have or reflection java...) , update dynamic updates.

see : beanutils

beanutils.copyproperties() // there 3 methods.

check how works in source code . create own util method , similar beanutils.copyproperties() , logic need (not null , not equal source-entity value ).

also use method beanutils , propertydescriptor :

public static propertydescriptor[] getpropertydescriptors(class clazz) throws beansexception

iterate on array of propertydescriptor , check need (set value source reflectionutils).

with approach populate properties not null , changed( if need it) billingtaxdbobject , update it.

you can put copy / merge method util class , reuse place need copy dto entity checks.


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