Example usage for java.beans PersistenceDelegate PersistenceDelegate

Introduction

In this page you can find the example usage for java.beans PersistenceDelegate PersistenceDelegate.

Prototype

PersistenceDelegate

Source Link

Usage

From source file:com.swingtech.commons.util.ClassUtil.java

/**
 * NOTE: When using this to print an object it will not display the
 * primitive type boolean. Must use the wrapper class. All other primitives
 * work fine.//from  w  ww.  ja  v a2 s  .c  o m
 *
 * NOTE: If an int value has a 0 it won't display.
 *
 * NOTE: Object must have a public constructor.
 *
 * @param object
 * @return
 */
public static String getXMLForObject(final Object object) {
    ByteArrayOutputStream baos = null;
    XMLEncoder e = null;

    baos = new ByteArrayOutputStream();
    e = new XMLEncoder(new BufferedOutputStream(baos));

    e.setPersistenceDelegate(Date.class, new PersistenceDelegate() {
        @Override
        protected Expression instantiate(final Object oldInstance, final Encoder out) {
            final Date date = (Date) oldInstance;
            final Long time = new Long(date.getTime());
            return new Expression(date, date.getClass(), "new", new Object[] { time });
        }
    });

    e.setPersistenceDelegate(BigDecimal.class, new PersistenceDelegate() {
        @Override
        protected Expression instantiate(final Object oldInstance, final Encoder out) {
            final BigDecimal bigDec = (BigDecimal) oldInstance;
            final double doubleVal = bigDec.doubleValue();
            return new Expression(bigDec, bigDec.getClass(), "new", new Object[] { new Double(doubleVal) });
        }
    });

    e.writeObject(object);
    e.close();

    return baos.toString();
}

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