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54 lines
1.2 KiB
54 lines
1.2 KiB
/*
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* A base-level class controlled by VerboseMetaobj.
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*/
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package sample.reflect;
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import javassist.tools.reflect.Metalevel;
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import javassist.tools.reflect.Metaobject;
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public class Person {
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public String name;
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public static int birth = 3;
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public static final String defaultName = "John";
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public Person(String name, int birthYear) {
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if (name == null)
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this.name = defaultName;
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else
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this.name = name;
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birth = birthYear;
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}
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public String getName() {
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return name;
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}
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public int getAge(int year) {
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return year - birth;
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}
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public static void main(String[] args) {
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String name;
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if (args.length > 0)
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name = args[0];
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else
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name = "Bill";
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Person p = new Person(name, 1960);
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System.out.println("name: " + p.getName());
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System.out.println("object: " + p.toString());
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// change the metaobject of p.
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if (p instanceof Metalevel) {
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((Metalevel)p)._setMetaobject(new Metaobject(p, null));
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System.out.println("<< the metaobject was changed.>>");
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}
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System.out.println("age: " + p.getAge(1999));
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}
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}
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