The javaee-api is stripped of any code and is just used to compile your application. The scope provided in Maven means that it is used for compiling, but is also available when testing. For this reason, the javaee-api needs to be below the embedded Glassfish dependency. The javaee-api ...
The default value is -1, which means the EJB container retries infinitely until the timer is successful. If the value is set to 0, the EJB container does not retry the timer, however, this results in behavior that is not compliant with the EJB specification. nonPersistentRetryInterval A ...
By default,max-beans-in-free-poolis the Int.max. That does not mean that you will be able to use 2 billion instances. Essentially, it means that Option 3 never happens. If a pooled instance does not exist, you will always just allocate a new one. In reality, you are limited by th...
Using this exclusive option means that if two clients simultaneously attempt to access the same entity EJB instance (an instance having the same primary key), the second client is blocked until the EJB is available. Database Concurrency
The annotations generally are self-explanatory. The@Statelessannotation indicates that the bean is stateless. The@Txattribute specifies the transactional demarcation for the method, and the@MethodPermissionattribute specifies the users who are allowed to access the method. So this means that there's no...
Do not include brackets in your option. ( ) Parentheses are to be typed as part of the command. | The vertical bar means you may select only one of the options shown. , The comma means you may choose as many of the options shown as you like, separating your choices with commas to ...
Anejb-jarfile is a module intended to package enterprise beans. Before EJB 3.1 all beans had to be packaged in such file. Since a considerable part of all Java EE applications is composed by a web front-end and a EJB back-end it means that theearcontaining the application will have to...
27) EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE?A) TrueB) FalseView Answer / Hide Answer28) EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of ...
Java MVC and EJBsdoi:10.1007/978-1-4842-6280-1_9Enterprise Java Beans (EJBs) are classes that encapsulate business functionalities, each of a certain kind. Unlike normal Java classes, however, EJBs run in a containerenvironment, which means the...Peter Spth...
Using this exclusive option means that if two clients simultaneously attempt to access the same entity EJB instance (an instance having the same primary key), the second client is blocked until the EJB is available. Database Concurrency With database concurrency, concurrency control for an EJB ...