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GdaDataModelArrayGdaDataModelArray — An implementation of GdaDataModel based on a GArray |
Functions
Description
The GdaDataModelArray object is a data model which internally uses a GArray to index all its rows (represented as GdaRow objects). In this data model, all the data is stored in memory, which can be a memory limitation if the number of rows is huge. This type of data model is easy to use to store some temporary data, and has a random access mode (any value can be accessed at any time without the need for an iterator).
Functions
gda_data_model_array_new_with_g_types ()
GdaDataModel * gda_data_model_array_new_with_g_types (gint cols,...);
Creates a new GdaDataModel object with the column types as specified.
Parameters
cols |
number of columns for rows in this data model. |
|
... |
types of the columns of the model to create as GType, as many as indicated by |
gda_data_model_array_new_with_g_types_v ()
GdaDataModel * gda_data_model_array_new_with_g_types_v (gint cols,GType *types);
Creates a new GdaDataModel object with the column types as specified.
[rename-to gda_data_model_array_new_with_g_types]
Parameters
cols |
number of columns for rows in this data model. |
|
types |
array of types of the columns of the model to create as GType, as many as indicated by |
[array] |
Since: 4.2.6
gda_data_model_array_new ()
GdaDataModel *
gda_data_model_array_new (gint cols);
Creates a new GdaDataModel object without initializing the column
types. Using gda_data_model_array_new_with_g_types() is usually better.
gda_data_model_array_copy_model ()
GdaDataModelArray * gda_data_model_array_copy_model (GdaDataModel *src,GError **error);
Makes a copy of src
into a new GdaDataModelArray object
gda_data_model_array_copy_model_ext ()
GdaDataModelArray * gda_data_model_array_copy_model_ext (GdaDataModel *src,gint ncols,gint *cols,GError **error);
Like gda_data_model_array_copy_model(), makes a copy of src
, but copies only some
columns.
Parameters
src |
a GdaDataModel to copy data from |
|
ncols |
size of |
|
cols |
array of |
[array length=ncols] |
error |
a place to store errors, or |
Since: 5.2.0
gda_data_model_array_get_row ()
GdaRow * gda_data_model_array_get_row (GdaDataModelArray *model,gint row,GError **error);
Get a pointer to a row in model
Parameters
model |
a GdaDataModelArray object |
|
row |
row number (starting from 0) |
|
error |
a place to store errors, or |
gda_data_model_array_set_n_columns ()
void gda_data_model_array_set_n_columns (GdaDataModelArray *model,gint cols);
Sets the number of columns for rows inserted in this model.
cols
must be greated than or equal to 0.
Also clears model
's contents.
gda_data_model_array_clear ()
void
gda_data_model_array_clear (GdaDataModelArray *model);
Frees all the rows in model
.