MetaContext

Object Hierarchy:

Description:

[ CCode ( copy_function = "g_boxed_copy" , free_function = "g_boxed_free" , type_id = "gda_meta_context_get_type ()" ) ]
[ Compact ]
public class MetaContext

The <structname>GdaMetaContext</structname> represents a meta data modification context: the <emphasis>how</emphasis> when used with modify_with_context, and the <emphasis>what </emphasis> when used with update_meta_store.

To create a new MetaContext use MetaContext.

To add a new column/value pair use gda_meta_context_add_column.

To free a MetaContext, created by MetaContext, use gda_attributes_manager_free.

Since 5.2, you must consider this struct as opaque. Any access to its internal must use public API. Don't try to use free on a struct that was created manually.

Namespace: Gda

Package: libgda-6.0

Content:

Creation methods:

public MetaContext ()
Creates a new MetaContext struct with a GenericSet to store column/value pairs.

Methods:

public MetaContext copy ()
Copy constructor.
public void free ()
Frees any resources taken by this struct.
public int get_n_columns ()
public unowned string get_table ()
Get table's name to used in the context.
public void set_column (string column, Value value, Connection? cnc)
Sets a new column/value pair to the given context this.
public void set_columns (HashTable<string,Value?> columns, Connection? cnc)
Set columns to use in the context.
public void set_table (string table)
Set table's name to use in the context.
public string stringify ()
Creates a string representation of given context.

Fields:

public unowned string[] column_names
public unowned Value[] column_values
public unowned HashTable<string,Value?> columns
public int size
public unowned string table_name