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java.lang.Object | +--org.hsql.jdbcDriver
Each JDBC driver must supply a class that implements the Driver interface.
The Java SQL framework allows for multiple database drivers.
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.
The application developer will normally not need to call any function of
the Driver directly. All required calls are made by the DriverManager.
When the Hypersonic SQL Driver class is loaded, it creates an
instance of itself and register it with the DriverManager. This means
that a user can load and register the Hypersonic SQL driver by calling
For more information about how to connect to a Hypersonic SQL database,
please see jdbcConnection.
Class.forName("org.hsql.jdbcDriver")
jdbcConnection
Constructor Summary | |
jdbcDriver()
|
Method Summary | |
boolean |
acceptsURL(java.lang.String url)
Returns true if the driver thinks that it can open a connection to the given URL. |
java.sql.Connection |
connect(java.lang.String url,
java.util.Properties info)
Attempts to make a database connection to the given URL. |
int |
getMajorVersion()
Gets the driver's major version number. |
int |
getMinorVersion()
Gets the driver's minor version number. |
java.sql.DriverPropertyInfo[] |
getPropertyInfo(java.lang.String url,
java.util.Properties info)
Gets information about the possible properties for this driver. |
boolean |
jdbcCompliant()
Reports whether this driver is a genuine JDBC COMPLIANTTM driver. |
Methods inherited from class java.lang.Object |
equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Constructor Detail |
public jdbcDriver()
Method Detail |
public java.sql.Connection connect(java.lang.String url, java.util.Properties info) throws java.sql.SQLException
The driver raises a SQLException if it is the right driver to connect to the given URL, but has trouble connecting to the database.
The java.util.Properties argument can be used to passed arbitrary string tag/value pairs as connection arguments.
For Hypersonic SQL, at least "user" and "password" properties must be included in the Properties.
url
- the URL of the database to which to connectinfo
- a list of arbitrary string tag/value pairs as
connection arguments. Normally at least a "user" and
"password" property should be included.Connection
object that represents a
connection to the URLpublic boolean acceptsURL(java.lang.String url)
url
- the URL of the databasepublic java.sql.DriverPropertyInfo[] getPropertyInfo(java.lang.String url, java.util.Properties info)
The getPropertyInfo method is intended to allow a generic GUI tool to discover what properties it should prompt a human for in order to get enough information to connect to a database. Note that depending on the values the human has supplied so far, additional values may become necessary, so it may be necessary to iterate though several calls to getPropertyInfo.
url
- the URL of the database to which to connectinfo
- a proposed list of tag/value pairs that will be sent on
connect openpublic int getMajorVersion()
public int getMinorVersion()
public boolean jdbcCompliant()
Hypersonic SQL currently does not yet support all required SQL 92 Entry Level functionality and thus returns false. The features that are missing are currently 'HAVING', views and referential integrity. It looks like other drivers returns true but do not support all features.
This method is not intended to encourage the development of non-JDBC compliant drivers, but is a recognition of the fact that some vendors are interested in using the JDBC API and framework for lightweight databases that do not support full database functionality, or for special databases such as document information retrieval where a SQL implementation may not be feasible.
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