I need ideas to implement a (really) high performance in-memory Database/Storage Mechanism in Java. In the range of storing 20,000+ java objects, updated every 5 or so seconds. Some options I am open to: Pure JDBC/database combination JDO JPA/ORM/database combination An Object Database Other Storage Mechanisms What is my best option? What are your experiences? EDIT: I also need like
Tag: database
Ways to save enums in database
What is the best way to save enums into a database? I know Java provides name() and valueOf() methods to convert enum values into a String and back. But are there any other (flexible) options to store these values? Is there a smart way to make enums into unique numbers (ordinal() is not safe to use)? Update Thanks for all