From 017851805d280a7cccc7eaba81300679d76c9d83 Mon Sep 17 00:00:00 2001
From: Daniel Gerhardt <code@dgerhardt.net>
Date: Sat, 21 Jul 2018 16:45:10 +0200
Subject: [PATCH] Add finalize methods which are run after create/update
These methods allow additonal application logic based on an created/
updated entity.
---
.../services/DefaultEntityServiceImpl.java | 28 +++++++++++++++++--
1 file changed, 26 insertions(+), 2 deletions(-)
diff --git a/src/main/java/de/thm/arsnova/services/DefaultEntityServiceImpl.java b/src/main/java/de/thm/arsnova/services/DefaultEntityServiceImpl.java
index b4a1391f9..2602578dd 100644
--- a/src/main/java/de/thm/arsnova/services/DefaultEntityServiceImpl.java
+++ b/src/main/java/de/thm/arsnova/services/DefaultEntityServiceImpl.java
@@ -69,9 +69,12 @@ public class DefaultEntityServiceImpl<T extends Entity> implements EntityService
throw new IllegalArgumentException("Entity is not new.");
}
entity.setCreationTimestamp(new Date());
+
prepareCreate(entity);
+ final T createdEntity = repository.save(entity);
+ finalizeCreate(entity);
- return repository.save(entity);
+ return createdEntity;
}
/**
@@ -83,6 +86,15 @@ public class DefaultEntityServiceImpl<T extends Entity> implements EntityService
}
+ /**
+ * This method can be overridden by subclasses to modify the entity after creation.
+ *
+ * @param entity The entity which has been created
+ */
+ protected void finalizeCreate(final T entity) {
+
+ }
+
public T update(final T entity) {
return update(repository.findOne(entity.getId()), entity);
}
@@ -92,9 +104,12 @@ public class DefaultEntityServiceImpl<T extends Entity> implements EntityService
public T update(final T oldEntity, final T newEntity) {
newEntity.setId(oldEntity.getId());
newEntity.setUpdateTimestamp(new Date());
+
prepareUpdate(newEntity);
+ final T updatedEntity = repository.save(newEntity);
+ finalizeUpdate(updatedEntity);
- return repository.save(newEntity);
+ return updatedEntity;
}
/**
@@ -106,6 +121,15 @@ public class DefaultEntityServiceImpl<T extends Entity> implements EntityService
}
+ /**
+ * This method can be overridden by subclasses to modify the entity after updating.
+ *
+ * @param entity The entity which has been updated
+ */
+ protected void finalizeUpdate(final T entity) {
+
+ }
+
@Override
public T patch(final T entity, final Map<String, Object> changes) throws IOException {
return patch(entity, changes, Function.identity());
--
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