Writing Dynamic Query using Hibernate API's

1:
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in AddBookAction.java:

if (Validator.isNull(cmd)) {
BookLocalServiceUtil.create(bookTitle);
} else {
List results = null;
if (cmd.equals("find")) {
results = BookLocalServiceUtil.findBooks(bookTitle);
} else {
DetachedCriteria dCriteria = DetachedCriteria.forClass(Book.class);
dCriteria.add(Restrictions.like("title", "%" + bookTitle + "%"));
DynamicQuery dynamicQuery = new DynamicQueryImpl(dCriteria);
results = (List)BookLocalServiceUtil.dynamicQuery(dynamicQuery);
}
req.setAttribute("results", results);
req.setAttribute("cmd", cmd);
}

2:
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in view.jsp

Add for 'search' button

<input value="Search" onclick="" type="button">findBook('search');" />

Note: the findBook JS function is now accepting a parameter, do changes to this function and also to the "Find Book" button.

3:
=======

in Success.jsp update this

if (Validator.isNotNull(cmd)) {
books = (List)request.getAttribute("results");
} else {
books = BookLocalServiceUtil.getAllBooks();
}

4 :
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ant deploy from ext-impl,
ant deploy from ext-web,
restart tomcat