A contribution to the
service, defining a page name and block id (within the page) that can
edit or display a particular type of property.
private final boolean edit;
The type of data for which the indicated block will provide an editor or displayer for.
The id of the block within the page.
If true, then the block provides an editor for the property, consisting of a
and some field
component (or set of field components). If false, the block is used to display the value of the property, usually
by applying some kind of formatting to the raw value.
The logical name of the page containing the block.