ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzaha_5.4.0.1/rzahapasejava.htm

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<title>Example: PaseExample1.java</title>
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<h1 class="topictitle1">Example: PaseExample1.java</h1>
<div><div class="section"><p><strong>Note:</strong> Read the <a href="codedisclaimer.htm">Code example disclaimer</a>
for important legal information.</p>
<pre>//////////////////////////////////////////////////////////////////////////////////
//
// This example program loads the native method library 'PaseExample1'.
// The source code for the native method is contained in PaseExample1.c
// The printString method in this Java program uses a native method,
// getStringNative to retrieve the value of the String. The native method
// simply calls back into the getStringCallback method of this class.
//
//////////////////////////////////////////////////////////////////////////////////
public class PaseExample1 {
public static void main(String args[]) {
PaseExample1 pe1 = new PaseExample1("String for PaseExample1");
pe1.printString();
}
String str;
PaseExample1(String s) {
str = s;
}
//-----------------------------------------------------------------
public void printString() {
String result = getStringNative();
System.out.println("Value of str is '" + result + "'");
}
// This calls getStringCallback through JNI.
public native String getStringNative();
// Called by getStringNative via JNI.
public String getStringCallback() {
return str;
}
//-----------------------------------------------------------------
static {
System.loadLibrary("PaseExample1");
}
}</pre>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahapaseexmpls.htm" title="The IBM i5/OS PASE native method for Java example calls an instance of a native C method that then uses Java Native Interface (JNI) to call back into Java code. Rather than accessing the string directly from Java code, the example calls a native method that then calls back into Java through JNI to get the string value.">Example: IBM i5/OS PASE native method for Java</a></div>
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<div><a href="codedisclaimer.htm">Code example disclaimer</a></div></div>
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