How to specify access to a java.nio.ByteBuffer?

[Evgeni Sergeev]

Hello,

How can I tell SWIG to accept a pointer to a java.nio.ByteBuffer, which is being passed to it by Java? Also, the size of the buffer is needed.

The aim is to have a contiguous memory space, which can be read and written by both native code and Java code, for passing a large amount of data quickly.

Evgeni

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[Evgeni Sergeev]

Hello,

How can I tell SWIG to accept a pointer to a java.nio.ByteBuffer, which is being passed to it by Java? Also, the size of the buffer is needed.

The aim is to have a contiguous memory space, which can be read and written by both native code and Java code, for passing a large amount of data quickly.

Evgeni

_________________________________________________________________
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[William S Fulton]

Hello,How can I tell SWIG to accept a pointer to a java.nio.ByteBuffer,
which is being passed to it by Java? Also, the size of the buffer is needed.
The aim is to have a contiguous memory space, which can be read and written
by both native code and Java code, for passing a large amount of data quickly.

Take a look at the usual set of typemaps for Java eg jni, jtype, jstype. A Google
code search such as this:
http://www.google.com/codesearch?q=jstype+ByteBuffer&hl=en&btnG=Search+Code
should take you to the GDAL typemaps which marshal void * as
java.nio.ByteBuffer.

William



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