topic Re: Creating folders saving each noderefs in Alfresco Archive

Creating folders saving each noderefs

spilby — Thu, 24 Apr 2014 15:03:35 GMT

I have two questions about a path creation and properties.This is my scene: I need to create a complete path of folders. Each one has own properties, and in the last folder, the user will put contents. Depends of these contents, the properties of each folder changes. An user gives me the path. The f

Re: Creating folders saving each noderefs

romschn — Thu, 24 Apr 2014 16:24:47 GMT

When you say you need to update property of each folder, does it mean that for example if there is a property lastuploadedby available in entire folder hierarchy and when a content is added then you want to propogate the uploaded by username in entire hierarchy. Is this kind of a scenario or on each folder you need to update different properties altogether. Please elaborate more on your requirement.

Re: Creating folders saving each noderefs

spilby — Thu, 24 Apr 2014 18:45:00 GMT

Oks. The properties are the same in all folders, but the value may be different. I need to update 2 properties.

One have the size of all the contents. If I put a content of 2Mb and another of 3mb, this property will be updated to 5mb.

The other property give me the number of sons in the hierarchy. Not the direct sons, all the sons. Each folder in this case, may be have a different value. Each time a folder is created, I need to update this property from all the parents.

Both of these 2 properties appears in all the folders.

Thanks!

Re: Creating folders saving each noderefs

mrogers — Thu, 24 Apr 2014 21:56:50 GMT

The nodes in the path are cached so each of your solutions should be o.k. There's not a lot to choose between them.

However what you may have problems with is contention on your root node. If you have a large number of concurrent updates you may like to think about how those updates feed up your tree. Perhaps aggregating changes together. Or doing something clever.

Re: Creating folders saving each noderefs

spilby — Fri, 25 Apr 2014 06:00:21 GMT

Ups, you're right. Maybe different users change the tree concurrently. Exists a solution for block the nodes and execute the update when the tree isn't blocked? How I can do this?

Re: Creating folders saving each noderefs

romschn — Fri, 25 Apr 2014 06:10:19 GMT

You can use LockService to get this done. getLockStatus method will give you the current lock status for the node.