public class ConcatFieldsClassBridge implements FieldBridge, ParameterizedBridge
{
	private String sepChar;
	private String[] toConcatFields;

	public void setParameterValues(Map parameters)
	{
		this.sepChar = (String)parameters.get("sepChar");
		this.toConcatFields = (String[])parameters.get("fields");
	}

	public void set(String name, Object object, Document document, LuceneOptions luceneOptions)
	{
		Class aClass = object.getClass();
		Class[] paramTypes = new Class[1];
		paramTypes[0] = String.class; // get the actual param type

		String fieldValue = "";

		for (int i = 0; i < this.toConcatFields.length; i++) {
			String methodName = "get" + toConcatFields[i];
			Method m = null;

			try {
				m = aClass.getMethod(methodName, paramTypes);
			} catch (NoSuchMethodException nsme) {
				nsme.printStackTrace();
			}

			String objectValue;

			try {
				objectValue = m.invoke(object);
			} catch (IllegalAccessException iae) {
				iae.printStackTrace();
			} catch (InvocationTargetException ite) {
				ite.printStackTrace();
			}

			if (objectValue == null) {
				fieldValue += "";
			} else {
				fieldValue += objectValue + sepChar;
			}
		}

		Field field = new Field(name, fieldValue, luceneOptions.getStore(), luceneOptions.getIndex(), luceneOptions.getTermVector());
		field.setBoost(luceneOptions.getBoost());

		document.add(field);
	}
}