C# Class Azavea.Open.DAO.OleDb.OleDbDescriptor

This class represents the info necessary to connect to an OleDb data source.

Inheritance: Azavea.Open.DAO.SQL.AbstractSqlConnectionDescriptor, ITransactionalConnectionDescriptor

ファイルを表示 Open project: azavea/net-dao-oledb Class Usage Examples

Public Properties

Property	Type	Description
ConnectTimeout	int?
Database	string
Password	string
Provider	string
Server	string
Type	DatabaseType
User	string

Protected Properties

Property	Type	Description
_cleanConnStr	string
_connectionStr	string

Public Methods

Method	Description
BeginTransaction ( ) : ITransaction	Begins the transaction. Returns a NEW ConnectionDescriptor that you should use for operations you wish to be part of the transaction. NOTE: You MUST call Commit or Rollback on the returned ITransaction when you are done.
CanUseAliasInOrderClause ( ) : bool
CaseInsensitiveLikeOperator ( ) : string
ColumnAliasPrefix ( ) : string
ColumnAliasSuffix ( ) : string
CreateDataAccessLayer ( ) : IDaLayer	Returns the appropriate data access layer for this connection. The default implementation returns a normal SQL data access layer, but this may be overridden in particular DB connection descriptors.
CreateNewAdapter ( IDbCommand cmd ) : DbDataAdapter
CreateNewConnection ( ) : DbConnection
FullOuterJoinKeyword ( ) : string
GuessTypeFromProvider ( string provider ) : DatabaseType	Attempts to parse the provider string and determine what database type we're connecting to.
HasCaseInsensitiveLikeOperator ( ) : bool
LowerCaseFunction ( ) : string
MakeBitwiseAndClause ( string columnName ) : SqlClauseWithValue
MakeConnectionString ( DatabaseType providerType, string server, string database, string user, string password, int connectionTimeout ) : string	Assembles a OLEDB connection string that can be used to get a database connection. All the parameters are optional for the purposes of this method, although obviously it would be possible to create a useless connection string if you leave out important parameters.
MakeConnectionString ( string provider, string server, string database, string user, string password, int connectionTimeout ) : string	Assembles a OLEDB connection string that can be used to get a database connection. All the parameters are optional for the purposes of this method, although obviously it would be possible to create a useless connection string if you leave out important parameters.
MakeCreateIndexCommand ( string indexName, bool isUnique, string tableName, IEnumerable columnNames ) : string
MakeModulusClause ( string fieldName ) : SqlClauseWithValue
MakeSequenceValueQuery ( string sequenceName ) : string
NeedAsForColumnAliases ( ) : bool
NeedToAliasColumns ( ) : bool
OleDbDescriptor ( Config config, string component, ConnectionInfoDecryptionDelegate decryptionDelegate ) : System	This constructor reads all the appropriate values from a config file.
OleDbDescriptor ( DatabaseType type, string server, string database, string user, string password, int timeout ) : System	Constructor that lets you pass everything as parameters rather than requiring a config.
OleDbDescriptor ( DatabaseType type, string provider, string server, string database, string user, string password, int timeout ) : System	Constructor that lets you pass everything as parameters rather than requiring a config.
OleDbDescriptor ( string provider, string server, string database, string user, string password, int timeout ) : System	Constructor that lets you pass everything as parameters rather than requiring a config.
SetParametersOnCommand ( IDbCommand cmd, IEnumerable parameters ) : void
SupportsTruncate ( ) : bool
TableAliasPrefix ( ) : string
TableAliasSuffix ( ) : string
ToCleanString ( ) : string
ToCompleteString ( ) : string
UsePooling ( ) : bool

Private Methods

Method	Description
GetTypeFromConfig ( Config config, string component ) : DatabaseType	Gets the type based on a couple optional parameters in the DB config file.

Method Details

BeginTransaction() public method

Begins the transaction. Returns a NEW ConnectionDescriptor that you should use for operations you wish to be part of the transaction. NOTE: You MUST call Commit or Rollback on the returned ITransaction when you are done.

public BeginTransaction ( ) : ITransaction
return	ITransaction

CanUseAliasInOrderClause() public method

public CanUseAliasInOrderClause ( ) : bool
return	bool

CaseInsensitiveLikeOperator() public method

public CaseInsensitiveLikeOperator ( ) : string
return	string

ColumnAliasPrefix() public method

public ColumnAliasPrefix ( ) : string
return	string

ColumnAliasSuffix() public method

public ColumnAliasSuffix ( ) : string
return	string

CreateDataAccessLayer() public method

Returns the appropriate data access layer for this connection. The default implementation returns a normal SQL data access layer, but this may be overridden in particular DB connection descriptors.

public CreateDataAccessLayer ( ) : IDaLayer
return	IDaLayer

CreateNewAdapter() public method

public CreateNewAdapter ( IDbCommand cmd ) : DbDataAdapter
cmd	IDbCommand
return	System.Data.Common.DbDataAdapter

CreateNewConnection() public method

public CreateNewConnection ( ) : DbConnection
return	System.Data.Common.DbConnection

FullOuterJoinKeyword() public method

public FullOuterJoinKeyword ( ) : string
return	string

GuessTypeFromProvider() public static method

Attempts to parse the provider string and determine what database type we're connecting to.

public static GuessTypeFromProvider ( string provider ) : DatabaseType
provider	string	OleDB "provider" piece of the connection string.
return	DatabaseType

HasCaseInsensitiveLikeOperator() public method

public HasCaseInsensitiveLikeOperator ( ) : bool
return	bool

LowerCaseFunction() public method

public LowerCaseFunction ( ) : string
return	string

MakeBitwiseAndClause() public method

public MakeBitwiseAndClause ( string columnName ) : SqlClauseWithValue
columnName	string
return	Azavea.Open.DAO.SQL.SqlClauseWithValue

MakeConnectionString() public static method

Assembles a OLEDB connection string that can be used to get a database connection. All the parameters are optional for the purposes of this method, although obviously it would be possible to create a useless connection string if you leave out important parameters.

public static MakeConnectionString ( DatabaseType providerType, string server, string database, string user, string password, int connectionTimeout ) : string
providerType	DatabaseType	Database type, will be used to determine provider string.
server	string	Server name that is hosting the database
database	string	Database name, if necessary to specify
user	string	User name to use when accessing the db
password	string	Password for above user.
connectionTimeout	int	How long to wait before giving up on a command, in seconds.
return	string

MakeConnectionString() public static method

public static MakeConnectionString ( string provider, string server, string database, string user, string password, int connectionTimeout ) : string
provider	string	Database driver/type/something, for example "SQLOLEDB"
server	string	Server name that is hosting the database
database	string	Database name, if necessary to specify
user	string	User name to use when accessing the db
password	string	Password for above user.
connectionTimeout	int	How long to wait before giving up on a command, in seconds.
return	string

MakeCreateIndexCommand() public method

public MakeCreateIndexCommand ( string indexName, bool isUnique, string tableName, IEnumerable columnNames ) : string
indexName	string
isUnique	bool
tableName	string
columnNames	IEnumerable
return	string

MakeModulusClause() public method

public MakeModulusClause ( string fieldName ) : SqlClauseWithValue
fieldName	string
return	Azavea.Open.DAO.SQL.SqlClauseWithValue

MakeSequenceValueQuery() public method

public MakeSequenceValueQuery ( string sequenceName ) : string
sequenceName	string
return	string

NeedAsForColumnAliases() public method

public NeedAsForColumnAliases ( ) : bool
return	bool

NeedToAliasColumns() public method

public NeedToAliasColumns ( ) : bool
return	bool

OleDbDescriptor() public method

This constructor reads all the appropriate values from a config file.

public OleDbDescriptor ( Config config, string component, ConnectionInfoDecryptionDelegate decryptionDelegate ) : System
config	Azavea.Open.Common.Config	Config to get params from.
component	string	Section of the config XML to look in for db params.
decryptionDelegate	ConnectionInfoDecryptionDelegate	Delegate to call to decrypt password fields. /// May be null if passwords are in plain text.
return	System

OleDbDescriptor() public method

Constructor that lets you pass everything as parameters rather than requiring a config.

public OleDbDescriptor ( DatabaseType type, string server, string database, string user, string password, int timeout ) : System
type	DatabaseType	Type of database to connect to. May not be null. This parameter /// will be used to determine what OleDb provider to use.
server	string	Server (or in the case of access, .mdb file) May be null, but you /// probably won't be able to connect to anything.
database	string	database name on that server, if applicable. May be null.
user	string	Database user name, may be null.
password	string	Password for the user. May be null.
timeout	int	Connection timeout, in seconds. May be null.
return	System

OleDbDescriptor() public method

Constructor that lets you pass everything as parameters rather than requiring a config.

public OleDbDescriptor ( DatabaseType type, string provider, string server, string database, string user, string password, int timeout ) : System
type	DatabaseType	Type of database to connect to. May not be null. This parameter /// will be used to determine what OleDb provider to use.
provider	string	Database provider string. May be null. If null, we will use a /// provider value based on the type, if not null, we will use this /// provider.
server	string	Server (or in the case of access, .mdb file) May be null, but you /// probably won't be able to connect to anything.
database	string	database name on that server, if applicable. May be null.
user	string	Database user name, may be null.
password	string	Password for the user. May be null.
timeout	int	Connection timeout, in seconds. May be null.
return	System

OleDbDescriptor() public method

Constructor that lets you pass everything as parameters rather than requiring a config.

public OleDbDescriptor ( string provider, string server, string database, string user, string password, int timeout ) : System
provider	string	Database provider string. May not be null.
server	string	Server (or in the case of access, .mdb file) May be null, but you /// probably won't be able to connect to anything.
database	string	database name on that server, if applicable. May be null.
user	string	Database user name, may be null.
password	string	Password for the user. May be null.
timeout	int	Connection timeout, in seconds. May be null.
return	System

SetParametersOnCommand() public method

public SetParametersOnCommand ( IDbCommand cmd, IEnumerable parameters ) : void
cmd	IDbCommand
parameters	IEnumerable
return	void

SupportsTruncate() public method

public SupportsTruncate ( ) : bool
return	bool

TableAliasPrefix() public method

public TableAliasPrefix ( ) : string
return	string

TableAliasSuffix() public method

public TableAliasSuffix ( ) : string
return	string

ToCleanString() public method

public ToCleanString ( ) : string
return	string

ToCompleteString() public method

public ToCompleteString ( ) : string
return	string

UsePooling() public method

public UsePooling ( ) : bool
return	bool

Property Details

ConnectTimeout public_oe property

The connection timeout, in seconds. May be null, meaning use the default.

public int? ConnectTimeout
return	int?

Database public_oe property

The database name, meaningful for some databases (Access (filename), SQL Server) but not others (Oracle). May be null depending on the database.

public string Database
return	string

Password public_oe property

The password for the User. May be null.

public string Password
return	string

Provider public_oe property

The "Provider", meaning the value for the provider field in the OleDB connection string.

public string Provider
return	string

Server public_oe property

The server name, meaningful for some databases (Oracle, SQL Server) but not others (Access). May be null depending on the database.

public string Server
return	string

Type public_oe property

The type of database (Oracle, SQL Server, etc).

public DatabaseType Type
return	DatabaseType

User public_oe property

The user name, if necessary to log into the database. May be null.

public string User
return	string

_cleanConnStr protected_oe property

protected string _cleanConnStr
return	string

_connectionStr protected_oe property

protected string _connectionStr
return	string