doAfterBody Method

The doAfterBody method is called after the body content is evaluated. doAfterBody must return an indication of whether to continue evaluating the body. Thus, if the body should be evaluated again, as would be the case if you were implementing an iteration tag, doAfterBody should return EVAL_BODY_AGAIN; otherwise, doAfterBody should return SKIP_BODY.

The following example reads the content of the body (which contains an SQL query) and passes it to an object that executes the query. Because the body does not need to be reevaluated, doAfterBody returns SKIP_BODY.

public class QueryTag extends BodyTagSupport {
    public int doAfterBody() throws JspTagException {
        BodyContent bc = getBodyContent();
        // get the bc as string
        String query = bc.getString();
        // clean up
        bc.clearBody();
        try {
            Statement stmt = connection.createStatement();
            result = stmt.executeQuery(query);
        } catch (SQLException e) {
            throw new JspTagException("QueryTag: " +
                 e.getMessage());
        }
        return SKIP_BODY;
    }
}