GdaParameterList
Manages a list of #GdaParameter objects which contain individual values
A #GdaParameterList is in a way only a better than GList list of #GdaParameter objects: it handles a list of
#GdaParameter objects (accessible directly using paramlist->parameters) but also creates other lists such as:
a list of #GdaParameterListNode structures (the nodes_list attribute): for each
parameter a such structure is created
to show in a signle place all the information about each parameter: the #GdaDataModel which
may restrict the list of values along with the column number in it, and any hint for the
parameter (a value made of GdaParameterListParamHint flags)
a list of #GdaParameterListSource structures (the sources_list attribute): each
#GdaParameterListSource structure is
complementary to the #GdaParameterListNode structures listed in its "nodes" attribute: there
is one such structure for each #GdaDataModel which may restrict values of one or more
parameters.
a list of #GdaParameterListGroup structures (the groups_list attribute):
there is one such structure for each _independant_ parameter (parameters which are constrained by the same
data model all appear in the same #GdaParameterListGroup structure)
Some queries require arguments before they can be executed. For such queries, the arguments are passed using
#GdaParameter objects (the list of parameters can be obtained using gda_entity_get_parameters()).
The #GdaParameterList object removes the hassle
of managing these #GdaParameter objects. For a query, a #GdaParameterList can be obtained using the
gda_entity_get_exec_context() function.
@dbdataset: the object which received the signal.
@arg1:
@gdaparameterlist: the object which received the signal.
@GDA_PARAMETER_LIST_PARAM_READ_ONLY:
@GDA_PARAMETER_LIST_PARAM_HIDE:
@param:
@source_model:
@source_column:
@hint:
@nodes:
@nodes_source:
@data_model:
@nodes:
@shown_n_cols:
@shown_cols_index:
@ref_n_cols:
@ref_cols_index:
@params:
@Returns:
@dict:
@dict:
@xml_spec:
@error:
@Returns:
@plist:
@Returns:
@paramlist:
@Returns:
@dataset:
@paramlist:
@param:
@dataset:
@paramlist:
@error:
@Returns:
@dataset:
@paramlist:
@Returns:
@dataset:
@paramlist:
@param_name:
@Returns:
@dataset:
@paramlist:
@user:
@Returns:
@dataset:
@for_field:
@paramlist:
@param:
@Returns:
@dataset:
@paramlist:
@param:
@Returns:
@paramlist:
@model:
@Returns:
@paramlist:
@param:
@value:
@dataset:
@paramlist:
@param:
@alias:
@dataset:
@paramlist:
@param:
@Returns:
@dataset: