--- /dev/null
+/*
+ * Copyright 2005 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.wamblee.persistence;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+
+/**
+ * Represents a database.
+ */
+public interface Database {
+ /**
+ * Starts a database. This call should not block and return
+ * as soon as the database has been started.
+ * @throws Exception
+ */
+ void start( ) throws Exception;
+
+ /**
+ * Gets the Jdbc Url to connect to this database.
+ * @return Jdbc Url.
+ */
+ String getJdbcUrl( );
+
+ /**
+ * Gets the external Jdbc URL to connect to this database from other JVMs.
+ */
+ String getExternalJdbcUrl();
+
+ /**
+ * Gets the driver class name used to connect to the database from another JVM.
+ * @return Driver class name.
+ */
+ String getDriverClassName();
+
+ /**
+ * Gets the username to connect to the database.
+ * @return username.
+ */
+ String getUsername();
+
+ /**
+ * Gets the password to connect to the database.
+ * @return password.
+ */
+ String getPassword();
+
+ /**
+ * Creates a new database connection. It is the caller's
+ * responsibility to close this connection.
+ *
+ * @return Newly created database connection.
+ */
+ Connection createConnection( ) throws SQLException;
+
+ /**
+ * Stops a database.
+ * @throws Exception
+ */
+ void stop( ) throws Exception;
+}