content model

[Faaaaaaling]

im working on creating a content model and so while im working on the model properties i need to auto increment the document id and the only way to do so is to use a java class constraint !

i created the java class that returns auto-inctemented id (integer) but when i add the full qualified name tto the property on alfresco plateform it get me error .
how to add this java class constraint to my model ?
im workin in alfresco community service 

[abhinavmishra14]

Can you provide more details? It is not quite clear what extactly you want to achieve. How are you using constraints to auto increment the value of document id property. Share the content model, constaint class and logs indicating the errors.