我有一个简单的关系测试,我试图运行使用Rest API创建一个独特的节点(java-rest-binding)https://github.com/neo4j/java-rest-binding但不幸的是我被困在某些东西上,这里是细节:(非唯一的节点和关系工作完全正常,与这一点,它没有,很有可能我做的东西幼稚(原谅我缺乏的Neo4j的知识)getOrCreate for java-rest-api neo4j失败
final UserModel userModel = new UserModel();
final HashMap<String, Object> uModelAttributes = new HashMap<String, Object>(0);
uModelAttributes.put("name", "AnirudhVyas");
userModel.setAttributes(uModelAttributes);
final HashSet<Action> buyHistory = new HashSet<Action>();
final Action buyAction = new Action();
final ProductModel productModel = new ProductModel();
final HashMap<String, Object> attributes = new HashMap<String, Object>(0);
attributes.put("name", "mercedes benz ");
attributes.put("make", "mercedes benz");
attributes.put("model", "sls 550");
attributes.put("year", "2014");
productModel.setAttributes(attributes);
buyAction.setProduct(productModel);
buyHistory.add(buyAction);
userModel.setBuyHistory(buyHistory);
System.out.println("Before");
new UserModelDAO().createCompleteTree(userModel);
System.out.println("Completed >>>
,如果我。使用此道:
final RestNode root = api.getOrCreateNode(api.index().forNodes("users", MapUtil.stringMap(IndexManager.PROVIDER, "lucene", "type", "fulltext")), "name", m
.getAttributes().get("name"), m.getAttributes());
api.getOrCreateNode(api.index().forNodes("products", MapUtil.stringMap(IndexManager.PROVIDER, "lucene", "type", "fulltext")), "name", buyAction.getProduct().getAttributes().get("name"), buyAction.getProduct().getAttributes()), RelationshipTypes.BOUGHT);
这基本上失败:
java.lang.RuntimeException: Error retrieving or creating node for key name and value AnirudhVyas with index users
at org.neo4j.rest.graphdb.ExecutingRestAPI.getOrCreateNode(ExecutingRestAPI.java:448)
at org.neo4j.rest.graphdb.RestAPIFacade.getOrCreateNode(RestAPIFacade.java:223)
at xxxx.xxxx.xxxx.graph.UserModelCreateTasteKeyNeo4JBatchCallback.recordBatch(UserModelCreateTasteKeyNeo4JBatchCallback.java:61)
的批处理操作只是记录你的电话,然后重播他们的执行你的块,所以任何类型的读数只有延迟到块被实际执行。 –
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