Stack Overflow
Stack Overflow

Questions tagged [metamodel]

Metamodel is a collection of concepts (frames, rules, terms, constraints, models and theories) that are applicable and useful for modeling a predefined class of problems.

A model is an abstraction of phenomena in the real world; a metamodel is yet another abstraction, highlighting properties of the model itself. A model conforms to its metamodel in the way that a computer program conforms to the grammar of the programming language in which it is written.

Metamodeling, or meta-modeling in software engineering and systems engineering among other disciplines, is the analysis, construction and development of the frames, rules, constraints, models and theories applicable and useful for modeling a predefined class of problems.

Metamodeling is usually defines of a collection of concepts within a certain domain.

cf. wikipedia

225 questions
0
votes
1 answer

What is Metamodel API used for

I understand that metamodel is kind of an abstraction of entity classes, but what exactly it is and how can I profit from that?
Jakub Gruber
  • 745
  • 1
  • 11
  • 27
0
votes
1 answer

exception when working with Java and metamodels java.lang.ClassCastException: javassist.bytecode.InterfaceMethodrefInfo cannot

I am unable to run my Play java application last thing I did was to modify the meta models and some minor changes on the relationship of the entity classes, has anybody experience this issue before? I do not really understand since the issue does…
James130490
  • 65
  • 7
0
votes
0 answers

Can a meta-model of the FileMaker RDBMS and RAD system be classified with pass-by-value and pass-by-reference components?

The FileMaker rapid application development system contains these components: base tables base table fields table occurrences relationships scripts script steps script variables script step parameters calculations layouts layout fields script…
Bobby
  • 1,585
  • 3
  • 19
  • 42
0
votes
0 answers

openmdao kriging surrogate claims bad data but it is not

I am trying to train a surrogate in openmdao 1.7.1 using FloatKrigingSurrogate(). I get an error message: /applications/Frameworks/Python_Frameworks/OpenMDAO/openmdao-1.7.1/lib/python2.7/site-packages/openmdao/surrogate_models/kriging.py:145:…
Clyde Gumbert
  • 1
  • 1
0
votes
1 answer

How can I refer the ManagedType of an Entity type X?

I created a utility method look like this. public static Optional findByUri( final EntityManager entityManager, final Class entityClass, final ManagedType entityType, final…
Jin Kwon
  • 20,295
  • 14
  • 115
  • 184
0
votes
1 answer

openmdao optimization with surrogate as one of several coupled discipline models

I thought I understood the January discussion regarding using metamodels in optimization. But my attempt has failed so far. I have a bit of a twist. I want to use a metamodel of one of several disciplines, where the example discussed in January…
Clyde Gumbert
  • 1
  • 1
0
votes
1 answer

How to inject hibernate metamodel in spring test context without full hibernate connection?

I have entity. @Entity class Foo { @Column Long id; /* ... */ } Hibernate generates Metamodel for it: @StaticMetamodel(Foo.class) public abstract class Foo_ { public static volatile SingularAttribute id; /* ...…
Tarwirdur Turon
  • 751
  • 5
  • 17
0
votes
1 answer

Using a metamodel in a design process using a nested approach

We are interested in using a surrogate model in an aircraft design process implemented in OpenMDAO. Basically we want to use an aerodynamic code (such as VSPaero in our aim) to produce a database (using a DOE ) and then built a surrogate that will…
RicONERA
  • 1
  • 1
0
votes
0 answers

How to enable or utilize "Static metamodel” in Hibernate

I have a class Term.java and it maps to a table in mysql. I want to use metamodel statements in query like the following, but it complains that "Term_" is not an available variable. public List findAllOrderedByName() { CriteriaBuilder…
user697911
  • 10,043
  • 25
  • 95
  • 169
0
votes
1 answer

JPA MetaDataException for different datasources

I have the problem with JPA Criteria API while using in my project different datasource persistance. There are two PU uses different datasources: …
Clean
  • 1
0
votes
0 answers

JPA Hibernate null pointer exception with OneToOne primary key/foreign key type relation

I'm having lots of trouble with a little prototype I'm trying to build. The problem involves two entities. But to understand it, I will need to describe a few others. In terms of the database structure, it can be described as…
svaens
  • 649
  • 7
  • 23
0
votes
0 answers

Convert IEEE std 830 format into class diagram

I have been trying to build a class diagram based on the following IEEE std 830 and as you can see the template format is big and there are could be a lot of classes to consider. The idea behind is to make a comparison between IEEE std 830 " SRS"…
Serag Alzetnani
  • 235
  • 1
  • 2
  • 7
0
votes
1 answer

Metamodel hadoop - HdfsResource issue with ExcelDataContext

A little background: My program was used to support normal File System, reading Excel file (and do some action with the data) with ExcelDataContext. It was fine for all the action. Now: My program has to be modify to support and work together with…
kwky
  • 389
  • 3
  • 9
0
votes
0 answers

JPA Metamodel Generation ignoring target class for element collection

I'm using Eclipse 4.5.0 for an EclipseLink 2.5 project. Eclipse is generating the metamodel for my entities, which works fine except for this case: Entity: public class User implements Serializable { private String id; private Set…
Nitek
  • 2,515
  • 2
  • 23
  • 39
0
votes
0 answers

Annotation Processing openjpa tomee in eclipse

I'm trying to use metamodel inside an eclipse project with tomee 1.7.1 server environment, and I don't use maven. In order to generate metamodel class in eclipse : In my project's properties -> Java Compiler -> Annotation Processing. i'm using…
Kizux
  • 85
  • 1
  • 11
1 2 3
…
14 15