Ability to auto create a primary key column while creating an entity ?

Question

Product : oracle data modeler ( 3.0.0.665 32 bit version ) on windows XP Professional , : Target DB Oracle 11GR2
I am new to Mozilla Rhino. Is it feasible to have a mechanism where in the primary key column name would be auto generated when the entity ( name ) is just created for the first time, and it has no columns defined yet . For e.g. one could create an entity named vendor , and after the table name is typed in, a column vendor identifier,of type numeric , is to be auto created. This mechanism should work even if the entity name changes, and the primary key is in format {tablename}_id , but it should not , if the primary key was manually set in later and is not in the expected format.

Answer 1

I created this script (1) for adding an ID column (using a specific domain) to all supertype entities that do not already have an ID attribute, and a script (2) for adding primary key constraints to all ID attributes.
- Marc de Oliveira
Script 1:
entities = model.getEntitySet().toArray();
domain = model.getDesign().getDomainSet().getByName('Integer DIS Domain');
for (var e = 0; e<entities.length;e++)
entity = entities[e];
if (entity.getHierarchicalParent()==null)
attributes = entity.getAttributes().toArray(); // find existing attributes
IDattribute = null;
for (var a = 0; a<attributes.length; a++) // look for an ID attribute
if (attributes[a].getName()=="ID") { IDattribute = attributes[a]; }
if (IDattribute==null) // if an ID attribute was not found...
IDattribute = entity.createAttribute(); // create a new ID attribute
IDattribute.setName("ID");
IDattribute.setDomain(domain);
entity.moveToIndex(IDattribute,0); // move ID attribute to top
Script 2:
entities = model.getEntitySet().toArray();
for (var e = 0; e<entities.length;e++)
entity = entities[e];
attributes = entity.getAttributes().toArray(); // find existing attributes
IDattribute = null;
for (var a = 0; a<attributes.length; a++) // look for an ID attribute
if (attributes[a].getName()=="ID") { IDattribute = attributes[a];}
if (IDattribute!=null) // if an ID attribute was found...
key = entity.createCandidateKey(); // Create a key
key.add(IDattribute); // Add the ID attribute to the key
key.setPK(true); // Define the key as a primary key
PKName = entity.getName().replace(" ","_")+"_PK";
key.setName(PKName); // Define the key as a primary key
entity.setPK(key); // workaround for bug...
}