The primary key can’t be a primitive type–use the primitive wrapper classes, instead. For example, you can use java.lang.Integer as the primary key class, but not int (it has to be a class, not a primitive)
Showing posts with label interview question of java. Show all posts
Showing posts with label interview question of java. Show all posts
Thursday, January 19, 2012
Java Interview Question and Java Beginner Tutorial - Part 11
Can the primary key in the entity bean be a Java primitive type such as int?
The primary key can’t be a primitive type–use the primitive wrapper classes, instead. For example, you can use java.lang.Integer as the primary key class, but not int (it has to be a class, not a primitive)
The primary key can’t be a primitive type–use the primitive wrapper classes, instead. For example, you can use java.lang.Integer as the primary key class, but not int (it has to be a class, not a primitive)
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