如何切换图形（在 Neo4j 上）？

发布于 2024-12-06 11:10:24 字数 695 浏览 0 评论 0原文

使用后如何返回 Neo4J 图

g = new TinkerGraph()

我想它类似于

g.loadGraphML(...)

编辑：

您的答案帮助我更好地理解 loadGraphML() 的工作原理，但它没有解决我的问题。

我要重新表述我的问题。我使用 Neo4j 和 Gremlin，当我第一次启动服务器时，我在 Gremlin 控制台下看到以下几行。

==> Available variables:
==>   g = neo4jgraph[EmbeddedGraphDatabase [/home/user/software/neo4j-community-1.5.M01/data/graph.db]]

然后我输入

gremlin> g = TinkerGraphFactory.createTinkerGraph()
==> tinkergraph[vertices:6 edges:6]

But how I can back to "g = neo4jgraph[EmbeddedGraphDatabase [/home/user/software/neo4j-community-1.5.M01/data/graph.db]]"

原文

How do I come back on the Neo4J graph after using

g = new TinkerGraph()

I guess it's something like

g.loadGraphML(...)

EDIT:

Your answer helped me to better understand how loadGraphML() works, but it didn't solve my problem.

I'm going to rephrase my question. I use Neo4j and Gremlin, and when I first start the server, I get the following lines under Gremlin console.

==> Available variables:
==>   g = neo4jgraph[EmbeddedGraphDatabase [/home/user/software/neo4j-community-1.5.M01/data/graph.db]]

Then I type

gremlin> g = TinkerGraphFactory.createTinkerGraph()
==> tinkergraph[vertices:6 edges:6]

But how can I come back to "g = neo4jgraph[EmbeddedGraphDatabase [/home/user/software/neo4j-community-1.5.M01/data/graph.db]]"

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粉红×色少女 2024-12-13 11:10:25

我不完全理解你的问题，但我相信你的意思是你已经用 TinkerGraph 做了一些工作，并且你想将这些数据导入 Neo4jGraph 吗？此外，鉴于您正在执行 g.loadGraphML(...)，我假设您正在谈论从 Gremlin。如果没有，请使用相应的 GraphMLReader/Writer 类由蓝图提供。

gremlin> g
==>tinkergraph[vertices:6 edges:6]
gremlin> g.V
==>v[3]
==>v[2]
==>v[1]
==>v[6]
==>v[5]
==>v[4]
gremlin> h = new Neo4jGraph('/tmp/test')
==>neo4jgraph[EmbeddedGraphDatabase [/tmp/test]]
gremlin> g.saveGraphML('test.xml') 
==>null
gremlin> h.loadGraphML('test.xml')
gremlin> h.V
==>v[1]
==>v[2]
==>v[3]
==>v[4]
==>v[5]
==>v[6]

简而言之，您可以将图形从 TinkerGraph 输出到 GraphML，然后通过 loadGraphML() 方法将其加载到 Neo4jGraph 中。您可能会对蓝图中有一个 GraphMigrator 工具感兴趣——请参阅蓝图 JavaDoc 了解更多信息。

I don't fully understand your question, but I believe you mean that you have done some work with TinkerGraph and you want to import that data into Neo4jGraph? Moreover, given that you are doing g.loadGraphML(...), I will assume you are talking about doing this from Gremlin. If not, please use the respective GraphMLReader/Writer classes provided by Blueprints.

gremlin> g
==>tinkergraph[vertices:6 edges:6]
gremlin> g.V
==>v[3]
==>v[2]
==>v[1]
==>v[6]
==>v[5]
==>v[4]
gremlin> h = new Neo4jGraph('/tmp/test')
==>neo4jgraph[EmbeddedGraphDatabase [/tmp/test]]
gremlin> g.saveGraphML('test.xml') 
==>null
gremlin> h.loadGraphML('test.xml')
gremlin> h.V
==>v[1]
==>v[2]
==>v[3]
==>v[4]
==>v[5]
==>v[6]

In short, you can output your graph to GraphML from TinkerGraph and then load it up into Neo4jGraph via the loadGraphML() method. There is a GraphMigrator tool in Blueprints that you might be interested---see the Blueprints JavaDoc for more information.

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