    class
    	PARAMETER_HDL

    General
    	cluster: support
    	description: "(At least ODBC)"

    Ancestors
    	STRING_HDL

    Queries
    	ht: HASH_TABLE [ANY, STRING_8]
    	ht_order: ARRAYED_LIST [STRING_8]
    	is_executed: BOOLEAN
    	is_mapped (key: STRING_8): BOOLEAN
    	is_prepared: BOOLEAN
    	mapped_value (key: STRING_8): ANY
    	parameter_count: INTEGER_32
    	parameter_name_exist (key: STRING_8): BOOLEAN

    Commands
    	clear_all
    	set_executed (b: BOOLEAN)
    	set_map_name (n: ANY; key: STRING_8)
    	set_parameter (value: ANY; key: STRING_8)
    	set_parameters_value (p: ARRAY [ANY])
    	set_prepared (b: BOOLEAN)
    	setup_parameters
    	unset_map_name (key: STRING_8)