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https://issues.apache.org/jira/browse/NIFIREG-18?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16173736#comment-16173736
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ASF GitHub Bot commented on NIFIREG-18:
---------------------------------------
Github user bbende commented on a diff in the pull request:
https://github.com/apache/nifi-registry/pull/10#discussion_r140072867
--- Diff:
nifi-registry-framework/src/main/java/org/apache/nifi/registry/db/repository/FlowRepository.java
---
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.registry.db.repository;
+
+import org.apache.nifi.registry.db.entity.FlowEntity;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.PagingAndSortingRepository;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+
+/**
+ * Spring Data Repository for FlowEntity.
+ */
+public interface FlowRepository extends
PagingAndSortingRepository<FlowEntity,String> {
+
+ @Query("SELECT f FROM FlowEntity f WHERE LOWER(f.name) = LOWER(:name)")
+ List<FlowEntity> findByName(@Param("name") String name);
--- End diff --
Will update as above
> Refactor MetadataProvider to use an embedded database
> -----------------------------------------------------
>
> Key: NIFIREG-18
> URL: https://issues.apache.org/jira/browse/NIFIREG-18
> Project: NiFi Registry
> Issue Type: Improvement
> Reporter: Bryan Bende
> Assignee: Bryan Bende
> Priority: Minor
>
> We need to leverage transactions when persisting data to avoid inconsistent
> states. Currently the MetadataProvider is based on an XML file which doesn't
> offer much way to rollback an operation. We should switch to using an
> embedded database.
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