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h2/src/main/org/h2/Driver.java

+/* * Copyright 2004-2006 H2 Group. Licensed under the H2 License, Version 1.0 (http://h2database.com/html/license.html).
+ * Initial Developer: H2 Group
+ */
+package org.h2;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.DriverPropertyInfo;
+import java.sql.SQLException;
+import java.util.Properties;
+
+import org.h2.engine.Constants;
+import org.h2.jdbc.JdbcConnection;
+import org.h2.message.Message;
+import org.h2.message.TraceSystem;
+
+/**
+ * The database driver. An application should not use this class directly. 
+ * The only thing the application needs to do is load the driver. This can be done 
+ * using Class.forName:
+ * <pre>
+ * Class.forName("org.h2.Driver");
+ * </pre>
+ */
+public class Driver implements java.sql.Driver {
+
+    // TODO server: maybe start/stop a server using DriverManager.getConnection ?
+    private static Driver instance = new Driver();
+
+    static {
+        try {
+            DriverManager.registerDriver(instance);
+        } catch (SQLException e) {
+            TraceSystem.traceThrowable(e);
+        }
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return the new connection
+     */
+    public Connection connect(String url, Properties info) throws SQLException {
+        try {
+            if (info == null) {
+                info = new Properties();
+            }
+            if (!acceptsURL(url)) {
+                return null;
+            }
+            synchronized (this) {
+                return new JdbcConnection(url, info);
+            }
+        } catch (Throwable e) {
+            throw Message.convert(e);
+        }
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return if the driver understands the URL
+     */
+    public boolean acceptsURL(String url) {
+        return url != null && url.startsWith(Constants.START_URL);
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return the major version number
+     */
+    public int getMajorVersion() {
+        return Constants.VERSION_MAJOR;
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return the minor version number
+     */
+    public int getMinorVersion() {
+        return Constants.VERSION_MINOR;
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return a zero length array
+     */
+    public DriverPropertyInfo[] getPropertyInfo(String url, Properties info) {
+        return new DriverPropertyInfo[0];
+    }
+
+    /**
+     * This method should not be called by an application.
+     * 
+     * @return true
+     */
+    public boolean jdbcCompliant() {
+        return true;
+    }
+    
+    /**
+     * INTERNAL
+     */
+    public static void load() {
+    }
+
+}