删除 Neo4j 中的索引节点 [英] Deleting indexed nodes in Neo4j

问题描述

在 Neo4j 中，如果我删除一个索引节点，我必须先从索引中删除该节点还是会自动更新索引?

In Neo4j, if I delete an indexed node do I have to remove that node from the index first or will the index be updated automatically?

这是一个小的(未经测试的)示例:

Here is a small (untested) example:

val index = graphDb.index()
val someIdx = index.forNodes("someIdx")
val someNode = graphDb.createNode()
someIdx.add(someNode, "key", "value")

然后:

//remove from someIdx???
someNode.delete()

推荐答案

删除节点时，必须先删除索引.如果您想从索引中删除所有提及的节点，请参见下文:

When you delete a node, you have to remove the index first. If you want to remove all mentions of a node from the index, see below:

    IndexManager indexManager = db.index();
    Index<Node> index = indexManager.forNodes("indexName");
    index.remove(node);

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