1.I am getting a List of Objects form Database Containing Fields as per my pojo.. List fieldList==>Contains the List of Objects...>

List<Object> fieldList;
for(Objec,java,collections,java-stream"/>
	














    

		

        

            
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首页  > 解决方案 > Streams API :: 如何从 LIST 修改自定义对象的变量?

1.I am getting a List of Objects form Database Containing Fields as per my pojo..
List fieldList==>Contains the List of Objects...>



List<Object> fieldList;
for(Objec












java - Streams API :: 如何从 LIST 修改自定义对象的变量?

1.I am getting a List of Objects form Database Containing Fields as per my pojo..
List fieldList==>Contains the List of Objects...>



List<Object> fieldList;
for(Objec





问题描述



1.I am getting a List of Objects form Database Containing Fields as per my pojo..
List fieldList==>Contains the List of Objects...>



List<Object> fieldList;
for(Object abc: fieldList){
                    abc.setIdMongoStr("RoleName");
                    abc.setTenantRegion("RoleNumber");
                }




How do i convert it Stream ????









if you need to set the same value to each item and thats all, you can use directly foreach, here is an example:



fieldList.stream().forEach(field -> {
            field.setIdMongoStr("RoleName");
            field.setTenantRegion("RoleNumber");
        });




This will mutate directly your objects inside the list


标签： javacollectionsjava-stream


解决方案









//replce it with your db result 
List<Object> yourlistOfObject=new ArrayList<Object>();

// convert inside the map() method directly.
List<YourObject> result = yourlistOfObject.stream().map(temp -> {
              YourObject obj = new YourObject();
              obj.setName(temp.getName());
              obj.setAge(temp.getAge());
              return obj;
          }).collect(Collectors.toList());











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