Holds a singleton instance of the id generator. It will give you unique id sequences.
The unique ID sequence has a header prepended before the sequence number. This is to make
the ID attribute conform to the XML Specification. The XML standard states that the unique
ID attribute in an XML document must begin with an alphabet(a-z), underscore(_), or colon(:).
retrieves the next ID. If this is the first time this method is called,
the initial value will be set to 10001. If you want to start off at a
specific number, use the nextID(int) static method instead.
nextID
public static java.lang.String nextID(int initial)
if this is the first time the method is called, it will initialize the generator
to the initial value provided. Subsequent calls to this method will ignore the initial request.