Transient Fields

The default MicroStream implementation fully supports the Java transient field modifier. Class members marked transient will not be persisted.
public class User 
{
	private String username;
	
	//do not persist the users password
	private transient String password; 
}
It is possible to override the default behavior by implementing  a custom PersistenceFieldEvaluator.
PersistenceFieldEvaluator fieldEvaluator = 
	(clazz, field) -> !field.getName().startsWith("_");
			
EmbeddedStorageManager storage = EmbeddedStorage.Foundation()
	.onConnectionFoundation(
		c -> c.setFieldEvaluatorPersistable(fieldEvaluator)
	)
	.createEmbeddedStorageManager()
	.start();
​

Lazy and Eager Storing

Best Practice

Last updated 6 months ago