在Java中对Hazelcast json值进行排序 [英] Sort the Hazelcast json value in java

问题描述

我将Hazelcast JSON值存储在IMAP中

I'm storing the Hazelcast JSON value in IMAP

IMap.put(Integer,new HazelcastjsonValue("{"id":"001","name":"vikram"}"));
IMap.put(Integer,new HazelcastjsonValue("{"id":"002","name":"abhishek"}"));

如何按name

我知道使用分页谓词可以实现排序的JSON数组.

I know using paging predicate we can achieve a sorted JSON array.

但是如何使用HazelcastjsonValue的分页谓词.

But how to use the paging predicate for the HazelcastjsonValue.

有人可以帮我吗?

推荐答案

您可以按照

You can set an index as described in Hazelcast Reference Manual: Indexing Queries. In your case, it would look like:

IMap.addIndex(new IndexConfig(IndexType.SORTED, "name"));

然后，对结果集合进行排序.

Then, the result collection should be sorted.

如果您不想设置索引，那么我猜您可以使用Predicates.pagingPredicate(comparator, size)，但是您需要编写自己的自定义比较器.

If you don't want to set an index, then I guess you can use Predicates.pagingPredicate(comparator, size), but you would need write your own custom comparator.

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