Question

I’m working on alfresco 3.4, and i’m trying to create a node and i have a problem after node creation modeled in a node browser that cannot see my new nodes, so

Can anyone help me and see me how to create a node and what are the create node method parameters ? can any one guide me and clarify the create node method.

Thanks
Mohammed Amr
Senior System Developer
Digital Series

Answer 1

EDIT: just checked, use ASSOC_CONTAINS instead of ASSOC_CHILDREN

There are different ways to create new content from your Java code, like using:

• FileFolderService.create

• NodeService.createNode

I assume you’re referring here to the latter method. Let’s see the method signature (there’s another version of createNode that also accepts a Map for the initial properties, I’d just skip it for now):

ChildAssociationRef createNode(NodeRef parentRef,
                               QName assocTypeQName,
                               QName assocQName,
                               QName nodeTypeQName)
                               throws InvalidNodeRefException,
                                      InvalidTypeException

Let’s say we want to create a new node under a folder, your code will look like the following:

NodeRef folderNode = getMyFolderNode();
ChildAssociationRef childAssoc = nodeService.createNode(folderNode,
                                             ContentModel.ASSOC_CONTAINS,
                                             QName.createQName("{foo}bar"),
                                             ContentModel.TYPE_CONTENT);

The result of this call will be a new node being created under folderNode.

The new node will be bound to its parent folder by an association of type ContentModel.ASSOC_CONTAINS: this is the most critical part, as nodes can be related using a number of different associations, but the parent-child one that the node browser uses to display content as being filed one within the other is only this one.

{foo}bar is a QName that identifies this specific parent-child association itself. In the node browser, you can see the effect of this parameter in the node path, like /app:company_home/...../foo:bar.

The last ContentModel.TYPE_CONTENT parameter is, of course, the type you want to create the new node with. You might want to use a QName that refers to some custom type of yours.