Data source definition
This page describes data source definition of a Magnolia Content type. A data source defines how content type items are persisted.
datasource: workspace: tourguides namespaces: mt: https://www.magnolia-travel.com/jcr/1.0/mt autoCreate: true model: nodeType: mt:tourGuide properties: - name: birthday type: Date - name: gender - name: shortBio
optional, default is `JCR`
The type of the data source. If the value is JCR, the definition class must implement JcrDataSourceDefinition.
The name of the JCR workspace to store the content items.
When the definition item is loaded, and if there is no workspace registered by the given name and the
optional, default is
The root path for content type items in the given JCR workspace.
A list of JCR namespace names.
A JCR namespace name.
When the definition item is loaded, and if the given JCR namespace hasn’t been registered yet, the system will register the namespace.
optional, default is
If set to
The path to an CND file which defines a JCR node type definition. The file must be a Magnolia Resource.
When the definition item is loaded, and if the node type defined in the file is not yet registered, the system will register it. (See Using the
JCR name spaces, node types and node type definitions
model, explained in more detail on the Content type Model definition page, defines which
nodeType is used. The model itself does not define the nature of the node type. In the example above the
nodetype chosen is
Let’s assume that the
mt:tourGuide nodetype has not been registered yet. How to make sure that the model can utilize it?
There are two approaches.
All specifications in the YAML file.
Using the the
nodeTypeDefinitionproperty and a CND file for the node type definition.
All specifications in the YAML file
The example above defines all the JCR parameters in one YAML file. In most cases this is the recommended approach.
If you intend to use a JCR namespace that hasn’t been defined yet, you can define the new namespace, for example
mt, with the
In the above example, assuming that
mt:tourGuide has not been registered yet, the system will automatically register a new node type with the given namespace
mt, and the new node type inherits from the Magnolia
mgnl:content node type.
what is CND - Compact Namespace and Node Type Definition
The Compact Namespace and Node Type Definition (CND) notation provides a compact standardized syntax for defining node types and making namespace declarations. The notation is intended both for documentation and for programmatically registering node types. See http://jackrabbit.apache.org/jcr/node-type-notation.html for more details.
While XML-based node type definitions are still supported, we recommend using CND.
Using a CND file allows you to define various JCR namespace and node type definitions. Node type definitions based on a CND file can be more complex than the automatically generated node types, which inherit from
- Example of a CND-based node type definition
<mt = 'http://www.magnolia.info/jcr/mt'> [mt:traveller] > mgnl:content orderable [mt:tourGuide] > mt:traveller orderable [mt:happyCustomer] > mt:traveller orderable
Example of a content type definition referencing an CND-based node type definition:
datasource: workspace: happycustomers autoCreate: true nodeTypeDefinition: /content-type-examples/jcr-node-type-files/travellers-node-types.cnd model: nodeType: mt:happyCustomer properties: - name: country - name: age type: Double
|The CND node type definition resource is loaded only if the CND resource is referenced in the Data source definition of a Content type definition.|
Access to JCR workspaces is controlled by role-based access control lists (ACLs).
When the system detects and registers a new JCR workspace from a data source definition, it also automatically updates the
superuser role by adding an ACL for the given workspace and granting read/write permissions for the
In a production system, if you want to provide anonymous website visitors with (read) access to a specific JCR workspace, you must update the
anonymous role by adding an ACL for the workspace.
For further information please read:
Interfaces and classes
The DatasourceDefinition interface is agnostic of any data source type. To specify a JCR data source, Magnolia provides the JcrDataSourceDefinition interface and the ConfiguredJcrDataSourceDefinition implementation class.
For DatasourceDefinition, ConfiguredJcrDataSourceDefinition is the default implementation class via type mapping on the XML-based module descriptor of the
By default, Magnolia expects you to configure properties for ConfiguredJcrDataSourceDefinition to define a JCR data source.