nwsFetchTryFile             package:nws             R Documentation

_n_e_t_W_o_r_k_S_p_a_c_e _C_l_a_s_s _M_e_t_h_o_d

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

     Fetch a value of a workspace variable and write it to a file.

_U_s_a_g_e:

     ## S4 method for signature 'netWorkSpace':
     nwsFetchTryFile(.Object, xName, fObj)

_A_r_g_u_m_e_n_t_s:

 .Object: a netWorkSpace object

   xName: name of the variable to find

    fObj: File to write data to

_D_e_t_a_i_l_s:

     The nwsFetchTryFile method trys to find a value in the variable
     specified by 'xName'.  If found, the value is removed from the
     variable, it writes the value to the file object, and the method
     returns TRUE.  If it is not found, it simply returns FALSE.

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

     'nwsFindTryFile', 'nwsFetchTry'

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

     ## Not run: 
     ws <- netWorkSpace('nws example')
     nwsStore(ws, 'x', 'Hello, world\n')
     if (nwsFetchTryFile(ws, 'x', 'hello.txt')) {
       cat('success\n')
     } else {
       cat('failure\n')
     }
     ## End(Not run)

