https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string<p>Usually a persistence object is created via:</p> <pre><code>import objects.Product; // persist new created product Product product; product.name = "Product name"; product.nr = 12; ivy.persistence.webshpo.persist(product); </code></pre> <p>What we are trying to do (for a dynamic interface) to dynamically create the persistence object with something like:</p> <pre><code>Object persistenceObject = Class.forName(in.persistenceClassName).newInstance(); </code></pre> <p>Is that generally possible? Can that be achieved in a ScriptStep or just in a JavaClass?</p> <p>Edit: We tried to give the full package name in the code mentioned above which returns a ClassNotFoundException:</p> <p>Object persistenceObject = Class.forName("objects.Product").newInstance();</p> <p>Edit 2: Changed persistenceUnit naming to persistenceObject according to Daniel's comment.</p>enMon, 05 May 2014 08:41:20 -0400https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string/676<p>Short answer: Yes.</p> <p>Long answer: You need to create a Java class which returns the persistence object as an object (just ignore the IvyScript-Error):</p> <pre><code>public Object returnPersistenceObject(String persistenceClassName) { Object persistenceUnit = "error"; try { persistenceUnit = Class.forName(persistenceClassName).newInstance(); return persistenceUnit; } catch (InstantiationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ClassNotFoundException e) { return "ClassNotFoundException"; //e.printStackTrace(); } return persistenceUnit; } </code></pre> <p>And then call the class from an ivyScript step: </p> <pre><code>Object persistenceUnit = helper.returnPersistenceObject("modelName"); </code></pre> <p>There are some more pitfalls here but I think this is a very special use case. If someone needs more explanation just comment and I will explain more.</p>Nikel WeisMon, 05 May 2014 08:41:20 -0400https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string/676https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string#664<p>I think I've made a mistake. Im not talking about a persistence unit (on database level) but on data-class level.</p>Nikel WeisFri, 25 Apr 2014 13:30:54 -0400https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string#664https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string#663<p>Are you sure you want to switch between persistence units? </p> <p>Like I have PersistenceUnit (databaseA) and PersistenceUnit(databaseB). Now you want dynamically choose which database to use?</p>Daniel OechslinFri, 25 Apr 2014 12:13:13 -0400https://answers.axonivy.com/questions/658/is-it-possible-to-create-an-ivy-persistence-object-from-string#663