Preventing a Bean Property from Being Serialized to XML : JavaBeans « Development « Java Tutorial

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2. Development
3. JavaBeans

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.beans.XMLEncoder;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;

public class Main {
  public static void main(String[] argv) throws Exception {

    MyClass o = new MyClass();
    o.setProp(1);
    o.setProps(new int[] { 1, 2, 3 });

    XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(
        new FileOutputStream("outfilename.xml")));
    encoder.writeObject(o);
    encoder.close();

  }
}

class MyClass {
  int i;

  public int getProp() {
    return i;
  }

  public void setProp(int i) {
    this.i = i;
  }

  int[] iarray = new int[0];

  public int[] getProps() {
    return iarray;
  }

  public void setProps(int[] iarray) {
    this.iarray = iarray;
  }

  static {
    try {
      BeanInfo info = Introspector.getBeanInfo(MyClass.class);
      PropertyDescriptor[] propertyDescriptors = info.getPropertyDescriptors();
      for (int i = 0; i < propertyDescriptors.length; ++i) {
        PropertyDescriptor pd = propertyDescriptors[i];
        if (pd.getName().equals("props")) {
          pd.setValue("transient", Boolean.TRUE);
        }
      }
    } catch (IntrospectionException e) {
    }
  }
}