GdaDataModelHash

GdaDataModelHash — An implementation of GdaDataModel based on a hash table

Synopsis

struct              GdaDataModelHash;
struct              GdaDataModelHashClass;
                    GdaDataModelHashPrivate;
GdaDataModel *      gda_data_model_hash_new             (gint cols);
void                gda_data_model_hash_insert_row      (GdaDataModelHash *model,
                                                         gint rownum,
                                                         GdaRow *row);
void                gda_data_model_hash_set_n_columns   (GdaDataModelHash *model,
                                                         gint cols);
void                gda_data_model_hash_clear           (GdaDataModelHash *model);

Object Hierarchy

  GObject
   +----GdaObject
         +----GdaDataModelRow
               +----GdaDataModelHash

Implemented Interfaces

GdaDataModelHash implements GdaDataModel.

Properties

  "n-columns"                guint                 : Read / Write

Description

Unlike GdaDataModelArray, this data model implementation stores the GdaRow in a hash table.

Details

struct GdaDataModelHash

struct GdaDataModelHash;


struct GdaDataModelHashClass

struct GdaDataModelHashClass {
	GdaDataModelRowClass parent_class;
};


GdaDataModelHashPrivate

typedef struct _GdaDataModelHashPrivate GdaDataModelHashPrivate;


gda_data_model_hash_new ()

GdaDataModel *      gda_data_model_hash_new             (gint cols);

cols :

number of columns for rows in this data model.

Returns :

a pointer to the newly created GdaDataModel.

gda_data_model_hash_insert_row ()

void                gda_data_model_hash_insert_row      (GdaDataModelHash *model,
                                                         gint rownum,
                                                         GdaRow *row);

Inserts a row in the model.

model :

the GdaDataModelHash which is gonna hold the row.

rownum :

the number of the row.

row :

the row to insert. The model is responsible for freeing it with g_object_unref().

gda_data_model_hash_set_n_columns ()

void                gda_data_model_hash_set_n_columns   (GdaDataModelHash *model,
                                                         gint cols);

Sets the number of columns for rows inserted in this model. cols must be greater than or equal to 0.

Also clears model's contents.

This function calls gda_data_model_hash_clear to free the existing rows if any.

model :

the GdaDataModelHash.

cols :

the number of columns for rows inserted in model.

gda_data_model_hash_clear ()

void                gda_data_model_hash_clear           (GdaDataModelHash *model);

Frees all the rows inserted in model.

model :

the model to clear.

Property Details

The "n-columns" property

  "n-columns"                guint                 : Read / Write

The number of columns in the model.

Default value: 0