External Links in KM Repository

Question

Hi,
How to create external links in KM repository in Web Dynpro Java application?
Thanks
Sundar

Answer 1

Hi,
Creating Links
When you create a link, you can specify whether it is internal or external. You create a link as follows:
IResource link = parent.createLink(u2033linku2033, u2033/documents/fileu2033,LinkType.INTERNAL, null);
Identifying the Link Type
It is useful to know the link type because it gives an indication of the operations that are possible on the link target. The repository framework distinguishes between internal and external links. Internal links refer to resources that are integrated in the repository framework, whereas external links refer to objects that are not integrated in the repository framework, for example, documents stored on a web site. If a link is internal, you can access the target as a resource that offers the operations associated with repository framework resources. If a link is external, you can only access the target as a URL and not as a resource object. As a consequence, most of the operations associated with resources are not available.
Determining the link type is therefore often a prerequisite for handling a link target effectively.
The code extract shows how you can find out what type of link is involved.
if( LinkType.INTERNAL.equals(resource.getLinkType()) ) {
// resource is an internal link to another resource
    IResource target = resource.getTargetResource();
    if( target == null ) {
        // link is broken, because target does not exist anymore as a resource,
        // so use the RID of the internal linku2019s target instead.
        URL targetURL = resource.getTargetURL();
} else if( LinkType.EXTERNAL.equals(resource.getLinkType()) ) {
// resource is an external link to an URL
URL target = resource.getTargetURL();
} else { // if( LinkType.NONE.equals(resource.getLinkType()) )
// resource is not a link
The repository framework also distinguishes between internal links that are static and dynamic. Dynamic links follow their target after the execution of operations like copy and move, whereas static links do not. When you create a link, the repository framework decides whether it will be static or dynamic.
For more information: SAP NETWEAVER DEVELOPER'S GUIDE 2004S. Page .20
Patricio.