Volume Descriptor Record Contents
The Volume Descriptor Record (VDR) must be present in every CCOGIF file. If it is not given to the CCOGIF writer, it will be created with the default attribute values listed in the following table. If a VDR metadata feature is given to the CCOGIF writer and it defines only some of the ccogif_XXX attributes that appear in the table below, the default value will be “taken” for those not specified.
Attribute Name |
Contents – Default Values |
ccogif_log_vol_id |
FME-generated CCOGIF dataset |
ccogif_phys_vol_num |
0 |
ccogif_vol_cre_date |
Current date |
ccogif_vol_data_desc |
Empty string (“ ”) |
ccogif_vol_gen_cntry |
Empty string (“ ”) |
ccogif_vol_gen_agncy |
Empty string (“ ”) |
ccogif_vol_gen_fclty |
Empty string (“ ”) |
ccogif_fmt_ctrl_doc_id |
Empty string (“ ”) |
ccogif_sw_release_id |
Empty string (“ ”) |
ccogif_feat_code_rev |
Empty string (“ ”) |
ccogif_num_ufl_recs |
Computed from the amount of user data specified in the volume’s UFLR metadata features |
ccogif_bytes_prev_rec |
0 |
The value for the attribute ccogif_num_ufl_recs is always filled in automatically by the CCOGIF writer. Its value will be based on the length of the user data passed to the writer via the User Fixed-Length Records’ (UFLR) metadata features.