datamodel

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MOMC error with XCode4 and Data Model Compile

Whenever I build my project, I\'m getting the error: Command /Developer/开发者_JAVA技巧usr/bin/momc failed with exit code 1[详细]

2023-04-11 15:12 分类：问答
Data structure for imagelinks

I\'m developing a housing app with a number of houses which each have attributes. Those attributes are currently listed in a dictionary like: House 0 {key: string, key: string} etc.[详细]

2023-04-03 12:06 分类：问答
Best way to create a data model with dynamic amount of properties in .NET

I\'m writing a data access layer where I want to return just the data required for each request. Let\'s say there is a total of 100 properties that you could retrieve, but a normal request will probab[详细]

2023-03-31 05:59 分类：问答
How to define a to-self relationship that's to-many only one way using Core Data?

In a vector graphics manipulation program, I have a \"Group\" entity which specifies groups of graphics and other groups. A Group can belong to only one other Group, but can contain many other Groups.[详细]

2023-03-25 10:55 分类：问答
How to model data planning

I want to build a data model which supports: Data history - store every change of data. This is not a problem: http://en.wikibooks.org/wiki/Java_P开发者_如何转开发ersistence/Advanced_Topics#History[详细]

2023-03-25 06:49 分类：问答
Creating data model class for database handling

I was just starting to work on an database application when I realized I should implement MVC pattern as the application is quite complex and involves a number of database operations.[详细]

2023-03-24 15:35 分类：问答
A good data model for storing score and history for a game

I am developing a little game (I\'m using Play! framework). In this game, the players answer tec开发者_运维技巧hnical questions, and win points when they answer correctly.[详细]

2023-03-24 07:04 分类：问答
Spring Formatters inside data model, is this a violation of MVC? Is there a better alternative?

Spring provides formatters (and converters) with the use of annotations. This means that a request parameter can be annotated on a controller to format user input and also a property of a data model c[详细]

2023-03-23 09:14 分类：问答
Data models in Alfresco

I\'m trying to create some data models in Alfresco. I create an XML file in alfresco extension folder where I declare 3 types: one that extends cm:content and two others that extend the first one.[详细]

2023-03-18 21:04 分类：问答
Data model testing with Hibernate

In my project i have a lot of hbm.xml files from which i generate the java classes and the sql for the db. Semantic errors within the hbm.xml files are shown to me after calling buildSessionFactory()[详细]

2023-03-17 18:14 分类：问答