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InformixContext

Inherits from: EOAdaptorContext : NSObject

Declared in: InformixEOAdaptor/InformixContext.h

Class Description

An InformixContext represents a single transaction scope on the database server to which its adaptor object is connected. If the server supports multiple concurrent transaction sessions, the adaptor may have several adaptor contexts. An InformixContext may in turn have several InformixChannels, which handle actual access to the data on the server.

The features the InformixContext class adds to EOAdaptorContext are methods for setting Informix-specific characteristics for the context.

Method Types

Managing a connection to the server

- connect

- connection

- disconnect

- isConnected

Returning information about an InformixContext

- fetchesInProgress

- hasTransactions

Returns information about the server

- isOnLine

Instance Methods

connect

- (void)connect

Opens a connection to the database server. An InformixChannel sends this message to its InformixContext when the channel is about to open a connection to the server.

See Also: - disconnect

connection

- (long)connection

Returns an identifier for the receiver's connection to the server.

disconnect

- (void)disconnect

Closes a connection to the database server. An InformixChannel sends this message to its InformixContext when the channel is about to close a connection to the server.

See Also: - connect

See Also: - connect, - disconnect

isOnLine

- (BOOL)isOnLine

Returns YES if the server is an Informix online server, NO otherwise.