steamkerop.blogg.se - C to java code converter

SWIG wraps C/C++ code using Java proxy classes and is very useful if you want to have access to large amounts of C/C++ code from Java. It is different to using the 'javah' tool as SWIG will wrap existing C/C++ code, whereas javah takes 'native' Java function declarations and creates C/C++ function prototypes. The Java extension to SWIG makes it very easy to plumb in existing C/C++ code for access from Java, as SWIG writes the Java Native Interface (JNI) code for you. Want to take advantage of Java but are forced into using some native (C/C++) code. The 100% Pure Java effort is a commendable concept, however in the real world programmers often either need to re-use their existing code or in some situations It covers most SWIG features, but certain low-level details are covered in less depth than in earlier chapters. This chapter describes SWIG's support of Java.

Functional interface without proxy classes.

Date marshalling using the javain typemap and associated attributes.

Memory management for objects passed to the C++ layer.

Memory management when returning references to member variables.

Void pointers and a common Java base class.

Adding an equals method to the Java classes.

Adding Java downcasts to polymorphic return types.

Expanding a Java object to multiple arguments.

Converting Java String arrays to char **.

NaN Exception - exception handling for a particular type.

Handling C++ exception specifications as Java exceptions.

Simpler Java enums for enums without initializers.

Typemaps for both C and C++ compilation.

Typemaps for mapping C/C++ types to Java types.

Default typemaps for non-primitive types.

Overriding new and delete to allocate from Java heap.

Input and output parameters using primitive pointers and references.

Method access with %javamethodmodifiers.

Exception handling with %exception and %javaexception.

Cross language polymorphism using directors.

Single threaded applications and thread safety.

The premature garbage collection prevention parameter for proxy class marshalling.

Further details on the generated Java classes.

Pointers, references, arrays and pass by value.

Modules, packages and generated Java classes.

Compilation problems and compiling with C++.