Java Native Interface
Last updated
Last updated
Java applications can call functions from external libraries.
Libraries can be implemented in Java, and packaged as classes.
Libraries can also be implemented in any other language.
Providing that an interface allows serialization and name resolution.
Java Native Interface allows the definition of Java methods, whose implementation is present in native code.
When a method is invoked, the objects are serialized, the respective native symbol is loaded and the code is executed.
There is a penalty due to serialization and a performance boost due to native code execution.
Standard mechanism for Java (not specific for Android).