相互に呼び出すトランザクションメソッドがありますが、トランザクションはコミットする必要のあるスポットの後にコミットするか、少なくとも挿入ログがその後に表示されるようです。これがhierachyの呼び出しです。
@Override
@Transactional
public DataProcessingStatistics copyInitialRevision() {
try {
DataProcessingStatistics statistics = new DataProcessingStatistics();
transaction(statistics);
statistics.printResult();
return statistics;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
@Override
@Transactional(propagation = Propagation.REQUIRES_NEW)
public void transaction(DataProcessingStatistics statistics) {
entityAuditTableService.generateTables(statistics);
oneToManyRelationAuditTableService.generateTables(statistics);
manyToManyRelationAuditTableService.generateTables(statistics);
}
...
@Service
public class EntityAuditTableServiceImpl implements EntityAuditTableService {
...
@Override
public void generateTables(DataProcessingStatistics statistics) {
List<EntityAuditTable> auditTables = loadAll();
for (EntityAuditTable auditTable : auditTables) {
try {
statistics.addAsProcessed(auditTable, process(auditTable));
} catch (Exception e) {
statistics.addAsSkipped(auditTable.getAuditTable(), e);
}
}
}
@Transactional(propagation = Propagation.REQUIRES_NEW)
public int process(EntityAuditTable auditTable) {
EntityDataTable table = entityDataTableService.create(auditTable.getEntityDataTable().getEntityClass());
List<EntityDataTableRow> rows = entityDataTableService.readAllData(table);
List<EntityAuditTableRow> auditTableRows = entityAuditTableRowService.generateTableData(auditTable, rows);
entityAuditTableRowService.saveAll(auditTableRows);
return auditTableRows.size();
}
...
@Service
public class EntityAuditTableRowServiceImpl implements EntityAuditTableRowService {
...
@Override
@Transactional
public void saveAll(List<EntityAuditTableRow> auditTableRows) {
jdbcService.saveArraysAs500RowChunks(auditTableRows, new ListSaver<EntityAuditTableRow>(){
@Override
public void save(List<EntityAuditTableRow> list) {
EntityAuditTableRowServiceImpl.this.saveJdbc(list);
for (EntityAuditTableRow auditTableRow: list) {
entityChangeService.saveFromRow(auditTableRow);
}
}
});
}
...
@Service
public class JdbcServiceImpl implements JdbcService {
@Override
public <E> void saveArraysAs500RowChunks(List<E> rows, ListSaver<E> saver) {
for (int i = 0; i < rows.size(); i += 500) {
save500(rows.subList(i, Math.min(i +500, rows.size())), saver);
}
}
@Override
@Transactional(propagation=Propagation.REQUIRES_NEW)
public <E> void save500(final List<E> rows, ListSaver<E> saver) {
if (rows == null || rows.size() == 0) {
return;
}
if (rows.size() > 500) {
throw new IllegalStateException("(auditTableRows.size() > 500)");
}
saver.save(rows);
}
...
@Service
public class EntityChangeServiceImpl implements EntityChangeService {
@Override
@Transactional
public void saveFromRow(EntityAuditTableRow auditTableRow) {
Revision revision = revisionsService.load(auditTableRow.getAuditTableRow().getRevision().getId());
EntityChange entityChange = create(auditTableRow);
save(entityChange);
revision.getEntitiesChanges().add(entityChange);
revisionsService.save(revision);
}
...
@Service
public class RevisionServiceImpl implements RevisionService {
@Override
@Transactional(propagation = Propagation.REQUIRES_NEW)
public Revision create() {
Revision revisionEntity = createDetached();
long generateNextIdForClass = idService.generateNextIdForClass(Revision.class);
revisionEntity.setId(generateNextIdForClass);
revisionEntity.setTimestamp(new Date());
save(revisionEntity);
return revisionEntity;
}
@Override
@Transactional
public void save(Revision revisionEntity) {
persistenceManagerHibernate.save(revisionEntity);
}
ルート/初期メソッド呼び出しから戻った後でのみ、ENTITY_CHANGED_IN_REVISIONテーブル/EntityChangeエンティティのログに挿入が挿入されます。
この点：
@Override
@Transactional
public DataProcessingStatistics copyInitialRevision() {
try {
DataProcessingStatistics statistics = new DataProcessingStatistics();
transaction(statistics);
statistics.printResult();
return statistics; // only after that return insert log appear
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
このログは、返品後にのみ表示されます。
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into ENTITY_CHANGED_IN_REVISION (ENTITY_ID, ENTITY_NAME, GROUP_ENTITY_ID, GROUP_NAME, REV_ID, REVISION_TYPE, ID) values (?, ?, ?, ?, ?, ?, ?)
@Transactional（propagation = Propagation.REQUIRES_NEW）である「save500rowchunk」メソッドから戻った後にそれらを受け取る代わりに：
@Override
@Transactional(propagation=Propagation.REQUIRES_NEW)
public <E> void save500(final List<E> rows, ListSaver<E> saver) {
if (rows == null || rows.size() == 0) {
return;
}
if (rows.size() > 500) {
throw new IllegalStateException("(auditTableRows.size() > 500)");
}
saver.save(rows); // invokes EntityChangeServiceImpl.saveFromRow
}
...
@Service
public class EntityChangeServiceImpl implements EntityChangeService {
@Override
@Transactional
public void saveFromRow(EntityAuditTableRow auditTableRow) {
Revision revision = revisionsService.load(auditTableRow.getAuditTableRow().getRevision().getId());
EntityChange entityChange = create(auditTableRow);
save(entityChange);
revision.getEntitiesChanges().add(entityChange);
revisionsService.save(revision);
}