Class TagAdapter

  • All Implemented Interfaces:
    JspTag, Tag

    public class TagAdapter
    extends Object
    implements Tag
    Wraps any SimpleTag and exposes it using a Tag interface. This is used to allow collaboration between classic Tag handlers and SimpleTag handlers.

    Because SimpleTag does not extend Tag, and because Tag.setParent() only accepts a Tag instance, a classic tag handler (one that implements Tag) cannot have a SimpleTag as its parent. To remedy this, a TagAdapter is created to wrap the SimpleTag parent, and the adapter is passed to setParent() instead. A classic Tag Handler can call getAdaptee() to retrieve the encapsulated SimpleTag instance.

    JSP 2.0
    • Constructor Detail

      • TagAdapter

        public TagAdapter​(SimpleTag adaptee)
        Creates a new TagAdapter that wraps the given SimpleTag and returns the parent tag when getParent() is called.
        adaptee - The SimpleTag being adapted as a Tag.