---
name: "giws"
section: "1"
platform: "linux"
package: "giws"
version: "2.0.2-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/giws"
---

# giws(1)

Generate C++ class wrappers to call Java methods/objects

## NAME

giws — Generate C++ class wrappers to call Java methods/objects

## SYNOPSIS

**giws** \[**-hf, --description-file\] \[-o, --output-dir\] \[-p, --per-package\] \[-e, --throws-exception-on-error\] \[--header-extension-file\] \[--body-extension-file\] \[-v, --version\] \[-h, --help\]**

## DESCRIPTION

 **Giws is basically doing the same stuff as SWIG but the opposite.**\
  **Calling Java from C/C++ can be tricky: JNI calls are complicated** \
  **especially when dealing with non primivite types or arrays,** \
  **performance issues must be kept in mind all the time,** \
  **the code can be redundant (checking exceptions, checking returns**\
  **of operations...).**\
  **Giws hides this complexity through a C++ class which wraps the**\
  **Java class.**

## OPTIONS

**-f, --description-file** **Description of the method of the Java Object.**

- **-o, --output-dir**

  **The directory where to export files**

- **-p, --per-package**

   **Generates CXX/HXX files per package**

- **-e, --throws-exception-on-error**

  **Throws a C++ exception instead of an exit(EXIT\_FAILURE)**

- **--header-extension-file**

  **Specify the extension of the header file generated \[Default : .hxx\]**

- **--body-extension-file**

  **Specify the extension of the body file generated \[Default : .cpp\]**

- **-v --version**

  **Display the version information**

- **-h --help**

  **Display the help**

## AUTHOR

**giws was written by Sylvestre Ledru, Vincent Couvert and Jean-Baptiste**  **Silvy**

**This manual page was written by Sylvestre Ledru \<sylvestre.ledru@inria.fr\>,** **for the Debian project (but may be used by others).**