Software:JRuntime
From HandWiki
| Developer(s) | Helion-Prime Solutions Ltd. |
|---|---|
| Stable release | 1.0
/ June 24, 2008 |
| Written in | Java |
| Operating system | Cross-platform |
| Type | Library |
| License | GNU Lesser General Public License |
| Website | JRuntime Home Page |
JRuntime is the simple library for Java. It makes easier an access to Java 6 compiler API.
This library enables compiling, executing and modifying Java-code dynamically while the program is working.
Usage
Dynamic class compilation
String classDef =
"public class MyClass {"+
" public String toString() {" +
" return \"MyClass\";" +
" }"+
"}";
RuntimeClass runtimeClass = new RuntimeClass(classDef);
System.out.println(runtimeClass.newInstance());
Dynamic block execution
RuntimeBlock sum = new RuntimeBlock( "return (Integer)params[0]+(Integer)params[1];"); System.out.println(sum.invoke(1, 2)); System.out.println(sum.invoke(5, 100));
Dynamic class modification
public class ClassToModify {
public String simpleMethod(String text) {
System.out.println("Text: " + text);
return text;
}
}
...
MutableRuntimeClass<ClassToModify> clazz =
new MutableRuntimeClass<ClassToModify>(ClassToModify.class);
ClassToModify instance = clazz.newInstance(new SimpleMutator() {
@Override
public void onBeforeMethod(Object instance, Method method,
Object... params) {
System.out.println("Before method: " + method.getName() +
", params: " + Arrays.toString(params));
}
@Override
public Object onAfterMethod(Object instance, Method method,
Object result, Object... params) {
System.out.println("After method: " + method.getName() +
", params: " + Arrays.toString(params));
return result;
}
});
instance.simpleMethod("Test mutable class!!!");
External links
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