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cpp_getfield.cpp
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30 lines (30 loc) · 1.61 KB
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//%%% Lines beginning with "//%%%" are template comments and removed from final output.
//%%% "%NAMESPACE%" will be replaced with namespace
//%%% "%HEADER%" will be replaced with header
//%%% "%HEADER_DEFINE%" will be replaced with defined value used to prevent multiple inclusion
//%%% "%CLASS_NAME%" will be replaced with className (not including package)
//%%% "%JNI_SIGNATURE% will be replaced with the JNI signature for the method.
//%%% "%METHOD_NAME% will be replaced with the actual methods arguments
//%%% "%METHOD_ARGS% will be replaced with the actual methods arguments
//%%% "%METHOD_ONFAIL% will be replaced with the code to execute on failure eg return -1
//%%% "%METHOD_CALL_TYPE% will be replaced with the type of Call<Type>Method needed.
//%%% "%METHOD_RETURN%" will be replaced with "return" or "" for void functions.
if(jthis == NULL) {
std::cerr << __FILE__ << ":" << __LINE__ <<" Call of method %METHOD_NAME% of %FULL_CLASS_NAME% with jthis == NULL." << std::endl;
%METHOD_ONFAIL%
}
JNIEnv *env =getEnv();
jclass cls = env->GetObjectClass(jthis);
if(GetDebugJ4Cpp()) DebugPrintJObject(__FILE__,__LINE__," %CLASS_NAME%::%METHOD_NAME% jthis=",jthis);
%RETURN_VAR_DECLARE%
if (cls != NULL) {
static jfieldID fid = env->GetFieldID(cls, "%FIELD_NAME%", "%JNI_SIGNATURE%");
if (NULL == fid) {
std::cerr << "Class %FULL_CLASS_NAME% has no field named %FIELD_NAME% with signature %JNI_SIGNATURE%." << std::endl;
%METHOD_ONFAIL%
} else {
%METHOD_RETURN_STORE% env->Get%METHOD_CALL_TYPE%Field( jthis, fid %METHOD_ARGS% );
}
}
releaseEnv(env);
%METHOD_RETURN_GET%