proposed MultiTableBulkIdStrategy changes

MultiTableBulkIdStrategy.java

	interface UpdateHandler {

		// todo (6.0) : Ideally I think the best option is for this delegate to just handle execution of the "entire SQM delete"
		//		i.e. the single HQL that needs to get split into multiple SQL operations...
		//
		//		something like:

		/**
		 * Execute the multi-table update indicated by the SQM AST passed in when this
		 * UpdateHandler was created.
		 *
		 * @param parameterBindings The value for all query parameter bindings
		 * @param session The originating Session
		 *
		 * @return The "number of rows affected" count
		 *
		 * @see #buildUpdateHandler
		 */
		int execute(QueryParameterBindings parameterBindings, SharedSessionContractImplementor session);

		// 		What is the proper return type?  for now returning the "number of rows affected" count..

		//		Similarly, any other parameters to pass?

		// 		the parameter references in the tree still just refer back the the overall bindings
		// 		regardless of which "split tree" they get split into.  Perfect! :)
	}