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java.lang.Object org.hsqldb.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 HSQL Database Engine 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 HSQL Database Engine driver by calling
Class.forName("org.hsqldb.jdbcDriver")
For more
information about how to connect to a HSQL Database Engine database,
please see jdbcConnection. As of version 1.7.0 all JDBC 2 methods can be called with jdk 1.1.x. Some of these method calls require int values that are defined in JDBC 2 version of ResultSet. These values are defined in the jdbcResultSet class when it is compiled with jdk 1.1.x. When using the JDBC 2 methods that require those values as parameters or return one of those values, refer to them as follows: (The code will not be compatible with other JDBC 2 driver, which require ResultSet to be used instead of jdbcResultSet) (fredt@users)
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. |
static java.sql.Connection |
getConnection(java.lang.String url,
java.util.Properties info)
|
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 HSQL Database Engine, at least "user" and "password" properties must be included in the Properties. From version 1.7.1 two optional properties are supported:
get_column_name
if set to false, a
ResultSetMetaData.getColumnName() call will return the user defined
label instead of the column name.
strict_md
if set to true, some ResultSetMetaData methods
return more strict values for compatibility reasons.
connect
in interface java.sql.Driver
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 URL
java.sql.SQLException
- if a database access error occurspublic static java.sql.Connection getConnection(java.lang.String url, java.util.Properties info) throws java.sql.SQLException
java.sql.SQLException
public boolean acceptsURL(java.lang.String url)
acceptsURL
in interface java.sql.Driver
url
- the URL of the database
public 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.
HSQLDB 1.7.2 uses the values submitted in info to set the value for each DriverPropertyInfo object returned. It does not use the default value that it would use for the property if the value is null.
getPropertyInfo
in interface java.sql.Driver
url
- the URL of the database to which to connectinfo
- a proposed list of tag/value pairs that will be sent on
connect open
public int getMajorVersion()
getMajorVersion
in interface java.sql.Driver
public int getMinorVersion()
getMinorVersion
in interface java.sql.Driver
public boolean jdbcCompliant()
HSQL Database Engine currently does not yet support all required SQL 92 Entry Level functionality and thus returns false. It looks like other drivers return true but do not support all features.
jdbcCompliant
in interface java.sql.Driver
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