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JohannesRabauerJohannesRabauer
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Added programmatic Transaction demo
1 parent 596d7b4 commit 4ee78f0

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Lines changed: 143 additions & 83 deletions

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‎spring-data-eclipse-store-demo/src/main/java/software/xdev/spring/data/eclipse/store/demo/complex/ComplexDemoApplication.java‎

Lines changed: 13 additions & 83 deletions
Original file line numberDiff line numberDiff line change
@@ -16,38 +16,26 @@
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package software.xdev.spring.data.eclipse.store.demo.complex;
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import java.time.LocalDate;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.ConfigurableApplicationContext;
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import org.springframework.data.domain.Pageable;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.Owner;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.OwnerRepository;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.Pet;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.PetType;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.Visit;
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@SpringBootApplication
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public class ComplexDemoApplication implements CommandLineRunner
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{
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private static final Logger LOG = LoggerFactory.getLogger(ComplexDemoApplication.class);
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private final OwnerRepository ownerRepository;
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private final OwnerService ownerService;
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private final VetService vetService;
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@Autowired
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public ComplexDemoApplication(
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final OwnerRepository ownerRepository,
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final OwnerService ownerService,
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final VetService vetService
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)
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{
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this.ownerRepository = ownerRepository;
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this.ownerService = ownerService;
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this.vetService = vetService;
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}
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@@ -60,89 +48,31 @@ public static void main(final String[] args)
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@Override
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public void run(final String... args)
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{
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this.transactionalVetCalls();
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this.vetCalls();
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this.ownerCalls();
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}
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/**
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* Some calls are transactional (delete and create) and some are not (log).
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*/
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private void ownerCalls()
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{
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LOG.info("----Owner-BeforeDeleteAll----");
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this.ownerRepository.findAll(Pageable.unpaged()).forEach(i -> LOG.info(i.toString()));
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this.ownerRepository.deleteAll();
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LOG.info("----Owner-AfterDeleteAll----");
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this.ownerRepository.findAll(Pageable.unpaged()).forEach(i -> LOG.info(i.toString()));
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final Owner owner = createOwner();
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this.ownerRepository.save(owner);
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LOG.info("----Owner-AfterSave----");
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this.ownerRepository.findAll(Pageable.unpaged()).forEach(i -> LOG.info(i.toString()));
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final Visit visit = createVisit();
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owner.addVisit("Peter", visit);
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this.ownerRepository.save(owner);
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LOG.info("----Owner-AfterVisit----");
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this.ownerRepository
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.findByLastName("Nicks", Pageable.unpaged())
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.forEach(i ->
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{
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LOG.info(i.toString());
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i.getPets().forEach(p -> {
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LOG.info(p.toString());
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p.getVisits().forEach(v -> LOG.info(v.toString()));
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}
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);
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}
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);
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LOG.info("----Owner-Lazy Pet loading----");
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this.ownerRepository.findAll().forEach(
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o -> o.getPets().forEach(
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pet -> LOG.info(String.format(
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"Pet %s has owner %s %s",
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pet.getName(),
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o.getFirstName(),
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o.getLastName()))
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)
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);
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this.ownerService.logOwners();
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this.ownerService.deleteAll();
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this.ownerService.logOwners();
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this.ownerService.createNewOwnerAndVisit();
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this.ownerService.logOwnersAndVisits();
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}
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/**
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* Each of these calls are one transaction.
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*/
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private void transactionalVetCalls()
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private void vetCalls()
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{
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this.vetService.logVetEntries();
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this.vetService.deleteAll();
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this.vetService.logVetEntries();
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this.vetService.saveNewEntries();
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this.vetService.logVetEntries();
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}
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private static Visit createVisit()
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{
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final Visit visit = new Visit();
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visit.setDate(LocalDate.now());
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visit.setDescription("Peter got his first parvovirus vaccine");
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return visit;
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}
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@SuppressWarnings("checkstyle:MagicNumber")
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private static Owner createOwner()
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{
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final Owner owner = new Owner();
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owner.setFirstName("Stevie");
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owner.setLastName("Nicks");
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final Pet pet = new Pet();
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pet.setBirthDate(LocalDate.now().minusWeeks(6));
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pet.setName("Peter");
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final PetType petType = new PetType();
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petType.setName("Dog");
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pet.setType(petType);
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owner.addPet(pet);
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return owner;
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}
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}

‎spring-data-eclipse-store-demo/src/main/java/software/xdev/spring/data/eclipse/store/demo/complex/OwnerService.java‎

Lines changed: 130 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,130 @@
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package software.xdev.spring.data.eclipse.store.demo.complex;
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import java.time.LocalDate;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
8+
import org.springframework.data.domain.Pageable;
9+
import org.springframework.stereotype.Service;
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import org.springframework.transaction.PlatformTransactionManager;
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import org.springframework.transaction.support.TransactionTemplate;
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13+
import software.xdev.spring.data.eclipse.store.demo.complex.owner.Owner;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.OwnerRepository;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.Pet;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.PetType;
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import software.xdev.spring.data.eclipse.store.demo.complex.owner.Visit;
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19+
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@Service
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public class OwnerService
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{
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private static final Logger LOG = LoggerFactory.getLogger(OwnerService.class);
24+
private final OwnerRepository ownerRepository;
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private final PlatformTransactionManager transactionManager;
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27+
@Autowired
28+
public OwnerService(final OwnerRepository ownerRepository, final PlatformTransactionManager transactionManager)
29+
{
30+
this.ownerRepository = ownerRepository;
31+
this.transactionManager = transactionManager;
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}
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34+
/**
35+
* Non transactional
36+
*/
37+
public void logOwners()
38+
{
39+
LOG.info("----All current stored owners----");
40+
this.ownerRepository.findAll(Pageable.unpaged()).forEach(i -> LOG.info(i.toString()));
41+
}
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43+
/**
44+
* Transactional
45+
*/
46+
public void deleteAll()
47+
{
48+
new TransactionTemplate(this.transactionManager).execute(
49+
status ->
50+
{
51+
this.ownerRepository.deleteAll();
52+
LOG.info("----Deleted all owners----");
53+
return null;
54+
});
55+
}
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57+
/**
58+
* Non transactional
59+
*/
60+
public void logOwnersAndVisits()
61+
{
62+
LOG.info("----All owners with last name Nicks----");
63+
this.ownerRepository
64+
.findByLastName("Nicks", Pageable.unpaged())
65+
.forEach(i ->
66+
{
67+
LOG.info(i.toString());
68+
i.getPets().forEach(p -> {
69+
LOG.info(p.toString());
70+
p.getVisits().forEach(v -> LOG.info(v.toString()));
71+
}
72+
);
73+
}
74+
);
75+
76+
LOG.info("----Owner-Lazy Pet loading----");
77+
this.ownerRepository.findAll().forEach(
78+
o -> o.getPets().forEach(
79+
pet -> LOG.info(String.format(
80+
"Pet %s has owner %s %s",
81+
pet.getName(),
82+
o.getFirstName(),
83+
o.getLastName()))
84+
)
85+
);
86+
}
87+
88+
/**
89+
* Transactional
90+
*/
91+
public void createNewOwnerAndVisit()
92+
{
93+
new TransactionTemplate(this.transactionManager).execute(
94+
status ->
95+
{
96+
final Owner owner = this.createOwner();
97+
this.ownerRepository.save(owner);
98+
99+
final Visit visit = this.createVisit();
100+
owner.addVisit("Peter", visit);
101+
this.ownerRepository.save(owner);
102+
LOG.info("----Stored new owner and visit----");
103+
return null;
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});
105+
}
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107+
private Visit createVisit()
108+
{
109+
final Visit visit = new Visit();
110+
visit.setDate(LocalDate.now());
111+
visit.setDescription("Peter got his first parvovirus vaccine");
112+
return visit;
113+
}
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115+
@SuppressWarnings("checkstyle:MagicNumber")
116+
private Owner createOwner()
117+
{
118+
final Owner owner = new Owner();
119+
owner.setFirstName("Stevie");
120+
owner.setLastName("Nicks");
121+
final Pet pet = new Pet();
122+
pet.setBirthDate(LocalDate.now().minusWeeks(6));
123+
pet.setName("Peter");
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final PetType petType = new PetType();
125+
petType.setName("Dog");
126+
pet.setType(petType);
127+
owner.addPet(pet);
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return owner;
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}
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}

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