23 lines
1.3 KiB
Markdown
23 lines
1.3 KiB
Markdown
# capnproto-java: Cap'n Proto for Java
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[](https://github.com/vaci/capnproto-java-rpc/actions?query=workflow%3ACI)
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[Cap'n Proto](http://capnproto.org) is an extremely efficient protocol for sharing data
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and capabilities, and capnproto-java is a pure Java implementation.
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[Read more here.](https://dwrensha.github.io/capnproto-java/index.html)
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This repository clone adds an implementation of the RPC framework for Java.
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Promise pipelining is provided via java.util.concurrent.CompletableFuture. Unlike the KJ asynchronous model, which completes promises
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only when they are waited upon, a CompletableFuture can complete immediately. This may break E-ordering, as the C++ implementation
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relies on kj::evalLater() to defer method calls, and there is no obvious (to me, anyway) way to replicate the behaviour of
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kj::evalLater() with CompletableFutures.
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Most of the C++ RPC test cases have been ported to this implementation, which gives me some comfort that the implementation logic is
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correct, but more extensive testing is required.
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This implementation does not support generic interfaces. Extending the schema compiler to output code for generic interfaces is an
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exercise I leave to the reader.
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