gUpdateDataMessage-class      package:MVCClass      R Documentation

_C_l_a_s_s "_g_U_p_d_a_t_e_D_a_t_a_M_e_s_s_a_g_e": _A _c_l_a_s_s _t_o _r_e_p_r_e_s_e_n_t _a_n _u_p_d_a_t_e _d_a_t_a _m_e_s_s_a_g_e

_D_e_s_c_r_i_p_t_i_o_n:

     gUpdateDataMessage is a class to represent an update data message.
     gUpdateDataMessage is inherited from the virtual class,
     gUpdateMessage. Whenever a gUpdateDataMessage is created
     (initialized), the next step is to call the handleMessage method
     to act upon that message and update the data.

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     Objects can be created by calls of the form
     'new("gUpdateDataMessage", ...)'.  The initialize method for this
     class will be created in other packages that use this package (for
     example, the initialize method will be created in the iSNetwork
     and iSPlot packages).

_S_l_o_t_s:

     '_f_r_o_m': the name of the MVC (model) that this update message came
          from 

     '_t_y_p_e': the type of update to perform 

     '_m_D_a_t_a': a list of the information needed to perform the update 

     '_d_a_t_a_N_a_m_e': the name of the data set to be updated 

_E_x_t_e_n_d_s:

     Class '"gUpdateMessage"', directly. Class '"gModifyMessage"', by
     class '"gUpdateMessage"'. Class '"gMessage"', by class
     '"gUpdateMessage"'.

_M_e_t_h_o_d_s:

     _f_r_o_m<- Sets the 'from' slot 

     _f_r_o_m Returns the 'from' slot 

_A_u_t_h_o_r(_s):

     Elizabeth Whalen

_S_e_e _A_l_s_o:

     'gUpdateViewMessage-class', 'gUpdateMessage-class',
     'gMessage-class'

_E_x_a_m_p_l_e_s:

