java_staticfield.cpp

C调用Java的一个例子程序

// JAVA_StaticField.cpp: implementation of the JAVA_StaticField class.
//
//////////////////////////////////////////////////////////////////////

#include "../header/JAVA_StaticField.h"


s_JAVA_StaticField::s_JAVA_StaticField()
{
	clear();
}
bool	s_JAVA_StaticField::loadField(JAVA_Object & _object,const char* name,const char * sig)
{
	if (!m_FieldID) {
		
		JNI_FieldID __FieldID = JAVA_Base::GetStaticFieldID(_object.getEnv(),_object.getClass(),name,sig);
		JAVA_ASSERT_MSG(__FieldID==JNI_NULL ,sig);
		if (__FieldID) {
			this->setMethod(_object.getEnv(),__FieldID,_object.getObject(),_object.getClass());
			return true;
		}
		clear();
		return false;
	}else{
		return true;
	}
}

void s_JAVA_StaticField::setMethod(JNI_Env* _lpEnv,JNI_FieldID _f,JNI_Object _o,JNI_Class _c)
{
	m_lpEnv = _lpEnv; 
	m_FieldID = _f; 
	m_Object = _o;
	m_Class = _c;
}

void s_JAVA_StaticField::clear()
{
	m_lpEnv = 0; 
	m_FieldID = 0; 
	m_Object = 0;
	m_Class = 0;
}