Solved

How to load a HashMap with all items from a Group<>

Posted on 2014-11-03
7
183 Views
Last Modified: 2014-11-08
C#.net guy, trying to write .java code; fumbling around on something that seems should be simple.

I have need to load a HashMap with a data that I am receiving from a class that is coming to be as a Group<>
Object model looks something like this;

VmGroupResource vmGroupResource = provider.getVmGroupResource(root.getVms());
Group<Vm> vms = vmGroupResource.getAllVms();

From there I need to put the data in the return data as a HashMap, but I get a type mismatch when I try to do;

(vccdata is the HashMap)
vccdata.putAll(Map) vms);

The IDE doesn't show me an error, but it throws an exception when debugging using NetBeans.
0
Comment
Question by:Michael Krumpe
  • 3
  • 3
7 Comments
 
LVL 16

Expert Comment

by:krakatoa
ID: 40419963
Best post your code with the exception so we can see it in situ.
0
 
LVL 4

Author Comment

by:Michael Krumpe
ID: 40420059
Working on that. Is my code though the proper way to push a Group<> into a a HashMap?
0
 
LVL 16

Accepted Solution

by:
krakatoa earned 500 total points
ID: 40420106
I don't recall Group being in the Java API.

Maybe you mean a collection, in which case you'd be referring to java Collections I reckon. In which case, pls take a shuftee at the API for it.
0
Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

 
LVL 86

Expert Comment

by:CEHJ
ID: 40420169
Group<Vm> itself would have to be a Map. Somehow that seems unlikely
0
 
LVL 4

Assisted Solution

by:Michael Krumpe
Michael Krumpe earned 0 total points
ID: 40420310
I am using an SDK provided class model. Drilling into the definition of Group, it looks like it is a type created in the class that extends Entity. It is pulling together some Json types from com.fasterxml.jackson.annotation, and then later adds
type, items, first, last, next, prev, build as interfaces.

the interface for .items is a List.

Thanks for pointing me in the direction to drill in a little more. That said, should I just treat it like a Collection and do:
for (Vm i: vms.getItems()) vccdata.put(i.getId(), i);

Open in new window


Should work... I think. Its giving me back 0 items as a size count. ... just want to make sure I'm doing it right before I bark up the SDK developer's tree.
0
 
LVL 16

Expert Comment

by:krakatoa
ID: 40420603
Not objecting as such to your close request, but wondering if you are entirely in the clear with it, given CEHJ's comment, and then my lack of full understanding of your requirements. Question.
0
 
LVL 4

Author Closing Comment

by:Michael Krumpe
ID: 40430074
Feedback pointed me in the right direction to see it as a collection, which needed to be treated as its own for loop.
0

Featured Post

Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
eclipse apache tomcat admin console 52 122
JavaFX TableView not displaying correctly 3 58
printf performancy 11 71
Html Table Looping (part 2) 5 27
Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
This video teaches viewers about errors in exception handling.

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question