\u00a0<\/span><\/li>\n<\/ul>\nIt comes from a community developer’s contribution to the upstream JDT project.\u00a0The Java index uses UTF-8 to encode the index characters. When loading the indexes, we\u00a0will\u00a0decode them back. Since most index characters are just ASCII characters, we optimized the decoding method to make it faster to read ASCII.<\/span>\u00a0<\/span><\/p>\nFuture Plans\u00a0<\/span><\/strong><\/p>\nThe improvements we listed above have made the auto completion a lot faster, but we are not done. In the future, performance continues to be our top focus and we will continue to optimize the auto-completion performance. Here are some items we have planned in the next few months.<\/span><\/p>\n\n- Lazy\u00a0Resolve TextEdit<\/span><\/b>\u00a0<\/span><\/li>\n<\/ul>\n
Since most language clients don\u2019t support lazy resolve text edit for the completion items, the Java language server must calculate the text edits for all completion items in the completion response. This is the cause of most expensive calculations.\u00a0 We\u2019re collaborating with the client authors to explore the support for lazy resolving text edit.<\/span>\u00a0<\/span><\/p>\n\n- More\u00a0Efficient\u00a0Indexer<\/span><\/b>\u00a0<\/span><\/li>\n<\/ul>\n
Current index data is insufficient for some code completion scenarios such as constructor. For example, the constructor completion needs to know whether the class has generic type arguments and decide whether to add a diamond <> to the constructor reference. The constructor index table hasn\u2019t included such type argument info, we have to resolve them from Java models, which is expensive. We\u2019re considering optimizing the index schema to include more information.<\/span>\u00a0<\/span><\/p>\nFeedback and Suggestions<\/span><\/strong><\/i><\/h3>\nPlease don\u2019t hesitate to try our product! Your feedback and suggestions are very important to us and will help shape our product in future. There are several ways to leave us feedback<\/p>\n
![\"Performance](\"https:\/\/devblogs.microsoft.com\/java\/wp-content\/uploads\/sites\/51\/2021\/11\/Picture1-1.png\")
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