Glue code

In computer programming, glue code is code that allows components to interoperate that otherwise are incompatible. The adapter pattern describes glue code as a software design pattern.
Glue code describes language bindings or foreign function interfaces such as the Java Native Interface.
Glue code may be written to access existing libraries, map objects to a database using object-relational mapping, or integrate commercial off-the-shelf programs.
Glue code may be written in the same language as the code it is gluing together, or in a separate glue language.
Glue code can be key to rapid prototyping.