A configurator is a servlet which knows about a war archive, a list of 'to
be configured' files within that archive, and a list of configuration
parameters.
This is where terminology really gets confusing, and vague
names like 'context' don't really help: ServletContext is a
Servlet 2.2 spec term which refers to what JServ called a
servlet zone, which contains a configuration namespace,
whereas our Context is *just* a namespace.
In setting up customisable content management systems (which,
let's face it, is 90% of what we do) it's often useful to allow
the users to choose - mix-n-match - CSS stylesheets from a number
of previously set up stylesheets.
Deprecated.The use of this class is deprecated because most
current DOM implementations won't handle nodes they didn't
create. Sad, but there it is - if you use this your code will be
at best fragile and unportable. Use ContextElmentGenerator instead.
A string output as the value of the class attribute in the
HTML tags used to layout this widget: in effect a hack to
allow you to decorate different actions differently.
An object representing a null data value, rather than a null object This is
useful where you actually WANT a null item, rather than a Java null which
tends to be used as a sentinel.
The default action of a table wrapper form is to fetch the data
for the current record from its table, provided there is a value
for keyField in the context.
a wrapper round drop to allow an arbitrary number of SQL
queries to be evaluated first -- intended to allow the
dropping of link-table or dependent records.
constructor: generally, the name of the value to extract from the
context is the same as the name of the element, but this constructor
handles the case where it isn't.