MetaStore

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Object Hierarchy:

Description:

Content:

Properties:

• public string catalog { construct; }
• public Connection cnc { owned get; construct; }
• public string cnc_string { construct; }
• public string schema { construct; }

Static methods:

• public static Quark error_quark ()
• public static string sql_identifier_quote (string id, Connection cnc)
  Use this method to get a correctly quoted (if necessary) SQL identifier which can be used to retrieve or filter information in a MetaStore which stores meta data about cnc.

Creation methods:

• public MetaStore (string? cnc_string)
  Create a new MetaStore object.
• public MetaStore.with_file (string file_name)
  Create a new MetaStore object using file_name as its internal database

Methods:

• public DataModel create_modify_data_model (string table_name)
  Creates a new DataModelArray data model which can be used, after being correctly filled, with the gda_meta_store_modify*() methods.
• public MetaStruct create_struct (MetaStructFeature features)
• public bool declare_foreign_key (MetaStruct? mstruct, string fk_name, string? catalog, string? schema, string table, string? ref_catalog, string? ref_schema, string ref_table, string[] colnames, string[] ref_colnames) throws Error
  Defines a new declared foreign key into this.
• public DataModel extract (string select_sql, HashTable<string,Value?>? vars) throws Error
  Extracts some data stored in this using a custom SELECT query.
• public bool get_attribute_value (string att_name, out string att_value) throws Error
  The MetaStore object maintains a list of ( name,value) attributes (attributes names starting with a '_' character are for internal use only and cannot be altered).
• public unowned Connection get_internal_connection ()
  Get a pointer to the Connection object internally used by this to store its contents.
• public int get_version ()
  Get this's internal schema's version
• public bool modify_v (string table_name, DataModel? new_data, string? condition, string[] value_names, Value[] values) throws Error
  Propagates an update to this, the update's contents is represented by new_data, this function is primarily reserved to database providers.
• public bool modify_with_context (MetaContext context, DataModel? new_data) throws Error
  Propagates an update to this, the update's contents is represented by new_data, this function is primarily reserved to database providers.
• public bool schema_add_custom_object (string xml_description) throws Error
  The internal database used by this can be 'augmented' with some user-defined database objects (such as tables or views).
• public SList<unowned string> schema_get_all_tables ()
  Get an ordered list of the tables this knows about.
• public SList<unowned string> schema_get_depend_tables (string table_name)
  Get an ordered list of the tables this knows about on which the table_name table depends (recursively).
• public MetaStruct schema_get_structure () throws Error
  Creates a new MetaStruct object representing this's internal database structure.
• public bool schema_remove_custom_object (string obj_name) throws Error
  Removes the custom database object named obj_name.
• public bool set_attribute_value (string att_name, string? att_value) throws Error
  Set the value of the attribute named att_name to att_value; see get_attribute_value for more information.
• public void set_identifiers_style (SqlIdentifierStyle style)
  Specifies how this must handle SQL identifiers it has to store.
• public void set_reserved_keywords_func (SqlReservedKeywordsFunc? func)
  Specifies a function which this will use to determine if a keyword is an SQL reserved keyword or not.
• public bool undeclare_foreign_key (MetaStruct? mstruct, string fk_name, string? catalog, string? schema, string table, string? ref_catalog, string? ref_schema, string ref_table) throws Error
  Removes a declared foreign key from this .

Signals:

• public signal void meta_changed (SList<MetaStoreChange> changes)
  This signal is emitted when the store's contents have changed (the changes are in the changes list)
• public virtual signal void meta_reset ()
  This signal is emitted when the store's contents have been reset completely and when no detailed changes are available
• public virtual signal Error suggest_update (MetaContext suggest)
  This signal is emitted when the contents of a table should be updated (data to update or insert only; deleting data is done automatically).

Inherited Members: