Qore SqlUtil Module Reference  1.3.2
SqlUtil::Table Class Reference

represents a database table; this class embeds an AbstractTable object that is created automatically in the constructor based on the database driver for the AbstractDatasource object providing the database connection More...

Public Member Functions

 constructor (AbstractDatasource ds, string name, *hash opts)
 creates the Table object More...
 
 constructor (string ds, string name, *hash opts)
 creates the Table object More...
 
 constructor (hash ds, string name, *hash opts)
 creates the Table object More...
 
 constructor (AbstractDatasource ds, hash desc, string name, *hash opts)
 creates the object from a table description hash More...
 
AbstractTable getTable ()
 returns the AbstractTable object contained by this object
 
any methodGate (string meth)
 executes a method on the contained AbstractTable object More...
 

Private Attributes

AbstractTable t
 the embedded AbstractTable object that actually provides the functionality for this class
 

Detailed Description

represents a database table; this class embeds an AbstractTable object that is created automatically in the constructor based on the database driver for the AbstractDatasource object providing the database connection

Driver-specific modules that provide the AbstractTable implementation embedded in this class are loaded on demand based on the driver's name. The driver-specific module's name is generated based on the db-driver's name with the first letter capitalized then with "SqlUtil" appended.

Note
SqlUtil::Table does not provide any functionality except it is able to create real low level AbstractTable inherited object. All functionality is provided by embedded AbstractTable object.

For example:

etc.

Note
Objects of Table class can hold AbstractTable pointing to a view in Oracle.

Member Function Documentation

◆ constructor() [1/4]

SqlUtil::Table::constructor ( AbstractDatasource  ds,
string  name,
*hash  opts 
)

creates the Table object

Example:
Table table(ds, "table");
Parameters
dsthe AbstractDatasource object used to provide the DB connection
namethe name of the table
optsa hash of options for the table creation string; see SqlUtil::AbstractTable::TableOptions for common options; each driver can support additional driver-specific options
Exceptions
TABLE-DRIVER-ERRORno database-specific module can be loaded
OPTION-ERRORinvalid or unsupported option passed

◆ constructor() [2/4]

SqlUtil::Table::constructor ( string  ds,
string  name,
*hash  opts 
)

creates the Table object

Example:
Table table("pgsql:user/pass@db%host", "table");
Parameters
dsa datasource description string in the format that can be parsed by parse_datasource()
namethe name of the table
optsa hash of options for the table creation string; see SqlUtil::AbstractTable::TableOptions for common options; each driver can support additional driver-specific options
Exceptions
TABLE-DRIVER-ERRORno database-specific module can be loaded
OPTION-ERRORinvalid or unsupported option passed

◆ constructor() [3/4]

SqlUtil::Table::constructor ( hash  ds,
string  name,
*hash  opts 
)

creates the Table object

Example:
Table table("pgsql:user/pass@db%host", "table");
Parameters
dsa hash giving parameters for the new datasource with the following possible keys (the "type" key is mandatory, also usable with the output of the parse_datasource() function):
  • type: (*string) The name of the database driver to use; this key is mandatory; if not present, an exception will be raised. See SQL Constants for builtin constants for DBI drivers shipped with Qore, or see the DBI driver documentation to use an add-on driver (this string should be the name of the driver to be loaded)
  • user: (*string) The user name for the new connection
  • pass: (*string) The password for the new connection
  • db: (*string) The database name for the new connection
  • charset: (*string) The database-specific name of the character encoding to use for the new connection. Also see Qore::SQL::Datasource::setDBCharset() for a method that allows this parameter to be set after the constructor. If no value is passed for this parameter, then the database character encoding corresponding to the default character encoding for the Qore process will be used instead.
  • host: (*string) The host name for the new connection
  • port: (softint) The port number for the new connection
  • options: (*hash) Any options for the new connection
namethe name of the table
optsa hash of options for the table creation string; see SqlUtil::AbstractTable::TableOptions for common options; each driver can support additional driver-specific options
Exceptions
TABLE-DRIVER-ERRORno database-specific module can be loaded
OPTION-ERRORinvalid or unsupported option passed

◆ constructor() [4/4]

SqlUtil::Table::constructor ( AbstractDatasource  ds,
hash  desc,
string  name,
*hash  opts 
)

creates the object from a table description hash

Parameters
dsthe AbstractDatasource for the connection to the database
desca table description hash describing the table
namethe name of the table
optsan optional hash of options for the table creation string; see SqlUtil::AbstractTable::TableOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed
DESCRIPTION-ERRORinvalid or unsupported description hash value passed

◆ methodGate()

any SqlUtil::Table::methodGate ( string  meth)

executes a method on the contained AbstractTable object

See SqlUtil::AbstractTable API for reference