#Hibernate uuid generator generatorIf programmer has created a sequence in the database then that sequence name should be passed as the generator.while inserting a new record in a database, hibernate gets next value from the sequence under assigns that value for the new record.This generator class is database dependent it means, we cannot use this generator class for all the database, we should know whether the database supports sequence or not before we are working with it.If there is no record initially in the database, then for the first time this will saves primary key value as 1, as….if we manually assigned the value for primary key for an object, then hibernate doesn’t considers that value and uses max value of id in database + 1 concept only □.This generator is used for generating the id value for the new record by using the formula.This generator supports in all the databases, database independent.If generator class is assigned, then the programmer is responsible for assigning the primary key value to object which is going to save into the database.This is the default generator class used by the hibernate, if we do not specify element under id element then hibernate by default assumes it as “assigned”.This generator supports in all the databases.In the above generators list, the first 7 are used for int, long, short types of primary keys, and last 2 are used when the primary key column type is String type ( varchar2) assigned The following are the list of main generators we are using in the hibernate framework while configuring element in mapping file, we need to pass parameters if that generator class need any parameters, actually one sub element of element is, will talk more about this.
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