Libosinfo Reference Manual: OsinfoList

## OsinfoList OsinfoList — Abstract base class for entity lists |

## Functions

GType | osinfo_list_get_element_type ()
gint | osinfo_list_get_length ()
OsinfoEntity * | osinfo_list_get_nth ()
OsinfoEntity * | osinfo_list_find_by_id ()
GList * | osinfo_list_get_elements ()
void | osinfo_list_add ()
void | osinfo_list_add_filtered ()
void | osinfo_list_add_intersection ()
void | osinfo_list_add_union ()
void | osinfo_list_add_all ()
OsinfoList * | osinfo_list_new_copy ()
OsinfoList * | osinfo_list_new_filtered ()
OsinfoList * | osinfo_list_new_intersection ()
OsinfoList * | osinfo_list_new_union ()

## Properties

GType * | element-type | Read / Write / Construct Only

## Object Hierarchy

        GObject
        ╰── OsinfoList
            ├── OsinfoDatamapList
            ├── OsinfoDeploymentList
            ├── OsinfoDeviceDriverList
            ├── OsinfoDeviceLinkList
            ├── OsinfoDeviceList
            ├── OsinfoInstallConfigParamList
            ├── OsinfoInstallScriptList
            ├── OsinfoMediaList
            ├── OsinfoOsVariantList
            ├── OsinfoProductList
            ├── OsinfoResourcesList
            ╰── OsinfoTreeList

## Description

OsinfoList provides a way to maintain a list of OsinfoEntity objects.

## Functions

### osinfo_list_get_element_type ()

    GType
    osinfo_list_get_element_type (OsinfoList *list);

Retrieves the type of the subclass of OsinfoEntity that may be stored in the list

#### Parameters

list | the entity list |

#### Returns

the type of entity stored

### osinfo_list_get_length ()

    gint
    osinfo_list_get_length (OsinfoList *list);

Retrieves the number of elements currently stored in the list

#### Parameters

list | the entity list |

#### Returns

the list length

### osinfo_list_get_nth ()

    OsinfoEntity *
    osinfo_list_get_nth (OsinfoList *list,
                         gint idx);

Retrieves the element in the list at position `idx` . If `idx` is less than zero, or greater than the number of elements in the list, the results are undefined.

#### Parameters

list | the entity list |
idx | the list position to fetch |

#### Returns

the list element.

[transfer none]

### osinfo_list_find_by_id ()

    OsinfoEntity *
    osinfo_list_find_by_id (OsinfoList *list,
                            const gchar *id);

Search the list looking for the entity with a matching unique identifier.

#### Parameters

list | the entity list |
id | the unique identifier |

#### Returns

the matching entity, or NULL.

[transfer none]

### osinfo_list_get_elements ()

    GList *
    osinfo_list_get_elements (OsinfoList *list);

Retrieve a linked list of all elements in the list.

#### Parameters

list | the entity list |

#### Returns

the list elements.

[transfer container][element-type OsinfoEntity]

### osinfo_list_add ()

    void
    osinfo_list_add (OsinfoList *list,
                     OsinfoEntity *entity);

Adds a new entity to the list.

#### Parameters

list | the entity list |
entity | the entity to add to the list. | [transfer none]

### osinfo_list_add_filtered ()

    void
    osinfo_list_add_filtered (OsinfoList *list,
                              OsinfoList *source,
                              OsinfoFilter *filter);

Adds all entities from `source` which are matched by `filter` . Using one of the constructors in a subclass is preferrable to this method.

#### Parameters

list | the entity list |
source | the source for elements. | [transfer none]
filter | filter to process the source with. | [transfer none]

### osinfo_list_add_intersection ()

    void
    osinfo_list_add_intersection (OsinfoList *list,
                                  OsinfoList *sourceOne,
                                  OsinfoList *sourceTwo);

Computes the intersection between `sourceOne` and `sourceTwo` and adds the resulting list of entities to the `list` . Using one of the constructors in a subclass is preferrable to this method.

#### Parameters

list | the entity list |
sourceOne | the first list to add. | [transfer none]
sourceTwo | the second list to add. | [transfer none]

### osinfo_list_add_union ()

    void
    osinfo_list_add_union (OsinfoList *list,
                           OsinfoList *sourceOne,
                           OsinfoList *sourceTwo);

Computes the union between `sourceOne` and `sourceTwo` and adds the resulting list of entities to the `list` . Using one of the constructors in a subclass is preferrable to this method.

#### Parameters

list | the entity list |
sourceOne | the first list to add. | [transfer none]
sourceTwo | the second list to add. | [transfer none]

### osinfo_list_add_all ()

    void
    osinfo_list_add_all (OsinfoList *list,
                         OsinfoList *source);

Adds all entities from `source` to `list` . Using one of the constructors in a subclass is preferrable to this method.

#### Parameters

list | the entity list |
source | the list to add. | [transfer none]

### osinfo_list_new_copy ()

    OsinfoList *
    osinfo_list_new_copy (OsinfoList *source);

Construct a new list that is filled with elements from `source`

#### Parameters

source | the list to copy |

#### Returns

a copy of the list.

[transfer full]

### osinfo_list_new_filtered ()

    OsinfoList *
    osinfo_list_new_filtered (OsinfoList *source,
                              OsinfoFilter *filter);

Construct a new list that is filled with elements from `source` that match `filter`

#### Parameters

source | the list to copy |
filter | the filter to apply |

#### Returns

a filtered copy of the list.

[transfer full]

### osinfo_list_new_intersection ()

    OsinfoList *
    osinfo_list_new_intersection (OsinfoList *sourceOne,
                                  OsinfoList *sourceTwo);

Construct a new list that is filled with only the elements that are present in both `sourceOne` and `sourceTwo` .

#### Parameters

sourceOne | the first list to copy |
sourceTwo | the second list to copy |

#### Returns

an intersection of the two lists.

[transfer full]

### osinfo_list_new_union ()

    OsinfoList *
    osinfo_list_new_union (OsinfoList *sourceOne,
                           OsinfoList *sourceTwo);

Construct a new list that is filled with all the that are present in either `sourceOne` and `sourceTwo` . `sourceOne` and `sourceTwo` must be of the same type.

#### Parameters

sourceOne | the first list to copy |
sourceTwo | the second list to copy |

#### Returns

a union of the two lists.

[transfer full]

## Types and Values

## Property Details

### The `“element-type”` property

      “element-type”             GType *

The specialization of the list. The list will be restricted to storing OsinfoEntity objects of the specified type.

Flags: Read / Write / Construct Only

Allowed values: OsinfoEntity

## See Also

OsinfoEntity