java - Spring-Data MongoDB Update all document fields -

i'm migrating sql (jpa) mongodb, , heard great things spring-data, i'm using it, whole conversion between dbobjects , application objects.

most of requirements met, don't know how migrate jpa's update functionality spring-data mongodb: 1. save/update implicit, handled hibernate 2. update updates values according given object

similarly jpa, when using com.mongodb.db can perform one-line "update" operation:

public boolean update(string collectionname, dbobject referenceobject, dbobject object) {     writeresult result = this.db.getcollection(collectionname).update(referenceobject, object);     return parsewriteresult(result); } 

it saves/updates object equals reference object according values in given object, , depending on whether object in db or not.

now i'm using mongooperations can update object using "update" object, have seed values 1 @ time:

mongooperations client = ...  ...  update update = new update(); update.set("past", 1); update.set("current", 3);  ...  client.updatefirst(query, update, clazz); 

is there way use functionality in jpa?

i not sure 100% understand question seems trying migrate data sql database using hibernate mongodb using spring-data.

we migrated of binary data in our application apache jackrabbit mongodb spring-data. in addition there 1 instance still storing binary data in our sql database migrated:

we migrated data in following manner:

• retrieve entities required hibernate.
• create new instance of mongodb document.
• loop through of these entities copying data hibernate entities onto mongodb document.
• call mongooperations#save() each document.

you mentioned updating:

to update particular document use mongooperations#updatefirst().

alternatively use mongooperatons#findone() object want, update fields want , call mongooperations#save() if read javadoc see performs upsert.