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C++ -> Java -- Multiple Return Values

843829Oct 31 2006 — edited Nov 2 2006

I am in need to multiple values from a method.
A status code (int) and a return value (double).

From what I have read -- it is customary to use an object array to handle this, since java does not support out parameters.

When I return the Object[] through JNI as a jobjectArray how do I obtain(cast) the values as int and double???

This is how I am getting the values from the array via JNI. However the cast to jint does not work as expected.

jsize numOfObjects = m_env->GetArrayLength(attrReturnArray);

if ( numOfObjects >= 2 )
{
   jint status = (jint)m_env->GetObjectArrayElement(attrReturnArray, 0);
   jint retValue = (jint)m_env->GetObjectArrayElement(attrReturnArray, 1);
}

Any sugestions?

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Locked on Nov 30 2006

Added on Oct 31 2006

#java-native-interface-jni

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Java HotSpot Virtual Machine

C++ -> Java -- Multiple Return Values

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