hi guys,
i am adding new field and its getter and setter methods to an existing class.
I can see those new changes in the bytecode, but unable to access those getter
and setter. I know that the jvm which loaded the class is old, but how to load
new byte code class
here is my code
ClassPool classPool = ClassPool.getDefault();
CtClass ctClass = null;
ctClass =
classPool.get("com.cura.hibernate.annotations.Employ");
ClassFile classFile = ctClass.getClassFile();
ConstPool constPool = classFile.getConstPool();
AnnotationsAttribute attr = new AnnotationsAttribute(constPool,
AnnotationsAttribute.visibleTag);
Annotation a = new Annotation("javax.persistence.Column",
constPool);
a.addMemberValue("name", new StringMemberValue("EmployAddress",
constPool));
// attr.setAnnotation(a);
// classFile.addAttribute(attr);
CtField make = CtField.make("private String employAddress;",
ctClass);
CtField ctField = new CtField(make, ctClass);
// ctField.setAttribute("Author1", ctClass.toBytecode());
JavassistUtils javassistUtils = new JavassistUtils();
javassistUtils.addFieldAnnotation(ctField, a);
ctClass.addField(ctField);
CtMethod setter = CtNewMethod
.make(
"public void
setEmployAddress(String employAddress) { this.employAddress = employAddress; }",
ctClass);
CtMethod getter = CtNewMethod.make(
"public String getEmployAddress() { return
employAddress; }",
ctClass);
ctClass.addMethod(getter);
ctClass.addMethod(setter);
ctClass.writeFile("bin");
ctClass.rebuildClassFile();
// Loader cl = new Loader(classPool);
//
// CtClass ct =
classPool.get("com.cura.hibernate.annotations.Employ");
//
//
// Class c = cl.loadClass("com.cura.hibernate.annotations.Employ");
// Object rect = c.newInstance();
// Class class1 = ctClass.toClass();
byte[] byteCode = ctClass.toBytecode();
HotSwapper hotSwapper = new HotSwapper(8000);// 8000 is a port
number.
hotSwapper.reload("com.cura.hibernate.annotations.Employ",
byteCode);
i have write with hotwapper and also with custom loader class to load .
Please can anyone direct me in this situation.
Thank You
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