[ARROW-16992] [Java][C++] Separate JNI compilation & linking from main arrow CMakeLists

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++, Java
• External issue URL: https://github.com/apache/arrow/issues/32306
• Assignee: Unassigned
• Reporter: Larry White
• Created: 06/Jul/22 15:55
• Updated: 11/Jan/23 11:47

Description

We need to separate the JNI elements from CMakeLists, with related modifications to the CI build scripts likely. Separating the JNI portion serves two related purposes:

1. Simplify building JNI code against precompiled lib arrow C++ code
2. Enable control of JNI build through Maven, rather than requiring Java devs to work with CMake directly

dsusanibara

kou 

Issue Links

• is related to: ARROW-17404 [Java] Consolidate JNI compilation #2

Sub-Tasks

• [Java] Create a top-level CMakeLists.txt for JNI: Resolved
• [Java][Datasets] Move JNI build configuration from cpp/ to java/: Resolved