The DriverManager will try to load as many drivers as it can
find and then for any given connection request, it will ask each
driver in turn to try to connect to the target URL.
When a Driver class is loaded, it should create an instance of
itself and register it with the DriverManager. This means that a
user can load and register a driver by doing
Class.forName("foo.bah.Driver").
Attempts to make a database connection to the server specified by the URL. The driver returns a NULL if it determines that it is the wrong kind
of driver to connect to the server. The driver raises an SQLException if it is the right driver to connect to the server, but cannot connect to
the database.
The connect method accepts a string representation of a URL and a java.util.Properties object as input.
url - The URL of the database to connect to. If the URL does not specify sasiom, a NULL is returned.
The URL must be of the form:
jdbc:sasiom://hostname:portnumber
where hostname is the name of the machine where the MVA server is running,
and portnumber is the port the MVA server is configured to use.
info - A list of connection arguments as a Properties object.
Properties for obtaining an MVAConnection are treated case-insensitively.
The properties are as follows:
user
A valid user name for the Workspace server you specify in the URL.
userName
Deprecated.Replaced by user
password
The password that corresponds to the user you specify with the user property.
librefs
A list of libnames and corresponding paths that specify the location of each Base SAS data set that your program will
access. Only Base SAS data sets can be accessed with the librefs property.
The librefs property value must be specifies as follows:
(libname 'filepath'; libname 'filepath';...)
dbms
The name of the DBMS your program will access; the value must be eight characters padded with blanks. The default is "SQLVIEW ", which specifies that
SAS data sets will be accessed. If you are not accessing SAS data, specify the name of the foreign DBMS as it is defined using
SAS/ACCESS software.
dbmsOptions
Options for the foreign DBMS your program will access. Specify the options as you specify the database-definition arguments when using the
PROC SQL statement CONNECT TO.
remarks
A Boolean value that determines whether the SAS/Integrated Object Model driver for JDBC returns the data
set label for each data set in the library that your program accesses. If the value is
True, the labels are returned; the default value is False.
Note: When this property is set to True, any operation that involves reading and returning data set labels can
result in poor performance because each data set must be opened in order to read the label. For example,
if this property is set to True, performance may be degraded when using the MVADatabaseMetaData.getTables()
method to retrieve a description of the tables in a catalog.
undoPolicyNone
A Boolean value that determines whether changes to the data are undone when an UPDATE or INSERT statement
generates errors. When the value is set to True (the recommended setting), the changes are not undone; when
the value is set to False, the server attempts to undo the changes.
encryptionPolicy
Defines whether or not JavaBridge should attempt to negotiate with the server over which encryption algorithm to use and what to do if the negotiations fail.
Valid values are:
none
- do not use encryption. This is the default.
optional
- attempt to use encryption but, if algorithm negotiation fails, continue with an unencrypted session
required
- attempt to use encryption but, if algorithm negotiation fails, fail the connection
encryptionContent
Specifies which messages should be encrypted if encryption is used.
Valid values are:
all
- encrypt all messages. This is the default.
authentication
- encrypt only messages that contain user name and password information.
encryptionAlgorithms
The list of algorithms you are willing to use in order of preference. Values in the list should be
separated by commas and chosen from
sasproprietary
rc2
rc4
aes
des
tripledes
If no value is specified, the server's default encryption algorithm will be used.
Note that the server's encryption policy is, by default, optional so no special action is needed
to prepare an IOM BRIDGE server to use encryption. However, it is possible to set up the server
so that encryption is required. Consult IOM BRIDGE server documentation for details.
applyFormats
specifies whether or not column formats are applied
when retrieving data. If the value is true, all data is returned as Strings. For any column, the
format used is the one defined on the column in the dataset. If "applyFormats" is set to false
(the default case) no formatting is applied.
Note: Users have the ability to pass in properties embedded in the url. The syntax
for this is "url?[attr=value]&[...]", where attr is a valid property name, and value is a valid name. If users
make use of this functionality, then if properties are also passed in via the Properties object, the properties in
the url will, in the case of conflicts, override those in the Properties object. This means that if a user
specifies a libref (for example) in both the URL and in the Properties object, the libref in the url will be
the one to take precedence, and the one in the Properties object will be ignored.
Returns:
A connection to the URL if the correct form of URL is used; otherwise, a NULL is returned.
Reports whether the Driver is a genuine JDBC COMPLIANT (tm) driver.
A driver may only report "true" here if it passes the JDBC compliance
tests, otherwise it is required to return false.
