Immutable documents

2008-12-04T11:17:18Z

87.29.232.99:

There are cases where a document should be made not modifiable, for example, if the document is very important and should not be lost or canceled for any reason.

<br> An immutable document can not be altered so:

*it's metadata are not modifiable
*it cannot be moved to another folder
*it cannot be restored from the GUI
*only accredited users can mark the document as immutable.
*on each folder the Administrator can give documents immutability permission to a specific groups of users.

We implement this feature with a boolean flag on each document that determines if it is immutable or not. In the GUI, immutable documents are recognizable by an icon and a special mark.

Document Pre/Post Processing

2008-11-25T13:58:11Z

87.29.232.99:

Some analisys sessions in various organizations where LogicalDOC was adopted, reported that it would be useful to add some kind of logic during the document storage procedure.<br>
For example a common need is to have a customizable numeration of inserted documents.
The idea is to define a new extension point in the core plug-in that can be extended by custom plug-ins in order to provide specific logic before and after a document is saved into the database.

Basically if a client wants to interact with the store procedure it must implement an interface like this:
<source lang="java" line="1">
public interface DocumentListener {
/**
* Called before a document is stored in the database
*
* @param document The document to be stored
* @param dictionary Dictionary of the execution pipeline
*/
public void beforeStore(Document document, Map<String, Object> dictionary);

/**
* Called after a document is stored in the database
*
* @param document The document to be stored
* @param dictionary Dictionary of the execution pipeline
*/
public void afterStore(Document document, Map<String, Object> dictionary);
}
</source>
<br>
Each time a document is stored, all enlisted listeners are notified and each listener can do a particular job. A convenient dictionary map can be passed through the execution chain so that one listener can share informations with others.
The extension point must define the implementation class and a position so that this can be used to choose the right notification order.

LogicalDOC Community Wiki - User contributions [en]

Immutable documents

Document Pre/Post Processing