Provides access to content model namespaces and their definition of namespace URIs and Prefixes. The NamespaceService has constants defined for the major namespaces used by internal Alfresco content models, including the prefixes for those.
Content Services namespaces start with http://www.alfresco.org. The top-level namespace sub-divisions are:
- model - identify a data model
- view - identify a view of content held in the repository
- ws - identify a Web Service definition
- test - identify a test definition
Each namespace typically ends with its version number.
Here is a list of some of the out-of-box content models that are good to know about:
| Namespace | Common Prefix | Description |
|---|---|---|
| http://www.alfresco.org | alf | General Namespace |
| http://www.alfresco.org/model/dictionary/1.0 | d | Data Dictionary model |
| http://www.alfresco.org/model/system/1.0 | sys | Repository system model |
| http://www.alfresco.org/model/content/1.0 | cm | Content Domain model |
| http://www.alfresco.org/model/application/1.0 | app | Application model |
| http://www.alfresco.org/model/bpm/1.0 | bpm | Business Process Model |
| http://www.alfresco.org/model/site/1.0 | st | Site Model |
| http://www.alfresco.org/model/forum/1.0 | fm | Forum Model |
| http://www.alfresco.org/model/user/1.0 | usr | User model (in repository.jar) |
| http://www.alfresco.org/view/repository/1.0 | view | Import / Export View |
| http://www.alfresco.org/model/action/1.0 | act | Action service model |
| http://www.alfresco.org/model/rule/1.0 | rule | Rule service model |
| http://www.alfresco.org/ws/service/authentication/1.0 | auth | Authentication Web Service |
| http://www.alfresco.org/ws/service/repository/1.0 | rep | Repository Web Service |
| http://www.alfresco.org/ws/service/content/1.0 | content | Content Web Service |
| http://www.alfresco.org/ws/service/authoring/1.0 | author | Authoring Web Service |
| http://www.alfresco.org/ws/service/classification/1.0 | cls | Classification Web Service |
| http://www.alfresco.org/ws/cml/1.0 | cml | Content Manipulation Language |
| http://www.alfresco.org/ws/model/content/1.0 | cm | Web Service Content Domain Model |
| http://www.alfresco.org/model/workflow/1.0 | wf | Workflow Model (link is to the simple workflow model, not generally extended) |
It’s common to use the NamespaceService to get to prefixes for content models, such as in this example:
String companyHomePath = serviceRegistry.getNodeService().getPath(companyHome)
.toPrefixString(serviceRegistry.getNamespaceService());
This code would result in companyHomePath being set to /app:company_home.
Another example usage is the following code that uses the NamespaceService when a QName is created:
String name = "aName"; QName aQName = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, QName.createValidLocalName(name));
This code would result in aQName being set to {http://www.alfresco.org/model/content/1.0}aName.