The syntax of the ORDER BY clause is defined in the Java Persistence API as orderby_clause ::=ORDER BY orderbyjtem {, orderbyjtem}* Which statement is correct about the use of ORDER BY clauses?
A. Only literals can be specified as an orderbyjtem.A developer needs to include a set of managed classes in a persistence unit. Which two solutions are correct? (Choose two.)
A. Place the class filesinthe orm.xml file.A developer writes a stateful session bean with local business interface Bar containing method test. Method test is implemented as
11.
©Remove
12.
public void testfj {}
A business method in a stateless session bean invokes a reference to bean Bar as follows :
11. @EJB Bar bar; 12.
13.
public void foo0 {
14.
bar.testfj;
15.
bar.testO;
16.}
Assuming execution reaches Line 15, what is the expected result?
A. Method foo returns withouterror.Given:
11.
@PersistenceContext EntityManager em;
12.
public boolean test(Order o) {
13.
boolean b = false;
14.
o = em.merge(o);
15 em.remove(o);
16.
o = em.merge(o);
17.
b = em.contains(o);
18.
return b;
19.}
Which statement is correct?
A. The method will return TRUE.The Java Persistent API defines certain rules for persistent entities. These rules are required by the persistent provider to manage entities at runtime. Which statement is correct, assuming NO mapping descriptor is used?
A. Entitiesmust extenda persistent base class.The Java Persistence API defines EntityTransaction interface. Which statement is correct?
A. It is used to control transactions on JTA entity managers.A developer implements a system in which transfers of goods are monitored. Each transfer needs a unique ID for tracking purposes. The unique ID is generated by an existing system which is also used by other applications. For perfomance reasons, the transaction that gets the unique ID should be as short as possible. The scenario is implemented in four steps which are implemented in four business methods in a CMT session bean:
1.
LcheckGoods
2.
Checks goods in a database
2.
getUniqueld Retrieve the unique ID
3.
checkAmount Checks the amount in a non-transactional system
4.
storeTransfer Stores the transfer in a database as part of the calling transaction. These methods are called by the addTransfer method of a second CMT session bean in the following order: checkGoods, getUniqueld, checkAmount, storeTransfer Assuming no other transaction-related metadata, which is the correct set of transaction attributes for the methods in the session beans?
A. 0. addTransfer REQUIRED 1. LcheckGoods REQUIRED 2. getUniqueldREQUIRES_NEW 3. checkAmountsNOT_SUPPORTED 4. storeTransferMANDATOR YA developer is implementing an EJB 3.0 message-driven bean that will be associated with a JMS topic. The bean must NOT miss any messages published to the topic, even if the EJB server is down for some time. Which is correct?
A. The developershouldset the activation config properly subscriptionDurabilitytovalueDurable.Which method always throws an exception when invoked on a container-managed entity manager?
A. the lock methodA developer writes a stateful session bean with local business interface Bar containing method test. Method test is implemented as
11. ©Remove
12. public void testfj {}
A business method in a stateless session bean invokes a reference to bean Bar as follows :
11. @EJB Bar bar;
12.
13. public void foo0 {
14. bar.testO;
15. bar.testO;
16.}
Assuming execution reaches Line 15, what is the expected result?
A. Method foo returns withouterror.Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Oracle exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your 1Z0-860 exam preparations and Oracle certification application, do not hesitate to visit our Vcedump.com to find your solutions here.