RelationshipOwnershipTest (JPA::Relation::Examples 5.1.0-SNAPSHOT Test API)

java.lang.Object
- ejava.examples.orm.rel.DemoBase
- - ejava.examples.orm.rel.RelationshipOwnershipTest

```
public class RelationshipOwnershipTest
extends DemoBase
```
This test case provides a demo of a ManyToMany relationship. This, of course, also uses a Join (or link) table.

Field Summary

Fields
Modifier and Type Field Description

private long applicantId

private long borrowerId
- Fields inherited from class ejava.examples.orm.rel.DemoBase
  em, emf, logBase, logger

Constructor Summary

Constructors
Constructor Description

RelationshipOwnershipTest()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`setUp()`	This setUp method creates a few objects that we'll use to test a few relations.
`void`	`tearDown()`	This method makes sure there are no relationships left over after test
`void`	`testOnetoOneInverse()`	This method will verify that setting only the inverse side of a OnetoOne relationship does not update the database.
`void`	`testOnetoOneOwnership()`	This method will verify that setting only the owning side of a OnetoOne relationship does update the database, but leaves the cache in an inconsistent state until refreshed.

Methods inherited from class ejava.examples.orm.rel.DemoBase
postcleanup, precleanup, setUpBase, setUpDownShared, tearDownBase, tearDownBaseClass

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - borrowerId
```
private long borrowerId
```
  - applicantId
```
private long applicantId
```
- Constructor Detail
  - RelationshipOwnershipTest
```
public RelationshipOwnershipTest()
```
- Method Detail
  - setUp
```
public void setUp()
           throws Exception
```
    This setUp method creates a few objects that we'll use to test a few relations.
    
    Throws:
    
    Exception
  - tearDown
```
public void tearDown()
              throws Exception
```
    This method makes sure there are no relationships left over after test
    
    Throws:
    
    Exception
  - testOnetoOneInverse
```
public void testOnetoOneInverse()
```
    This method will verify that setting only the inverse side of a OnetoOne relationship does not update the database. In this particular case the Application table contains the foreign key to the Borrower, so an update of only the Borrower object does not get reflected in the DB when the transaction commits.
  - testOnetoOneOwnership
```
public void testOnetoOneOwnership()
```
    This method will verify that setting only the owning side of a OnetoOne relationship does update the database, but leaves the cache in an inconsistent state until refreshed. In this particular case the Application table contains the foreign key to the Borrower. A change to Applicant gets written to DB, but not automatically reflected in Borrower until manually set of refreshed.