term updater 313_314 and implementation for transactions (#2027)

[cdmlib.git] / cdmlib-persistence / src / main / java / eu / etaxonomy / cdm / database / ICdmDataSource.java

diff --git a/cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/ICdmDataSource.java b/cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/ICdmDataSource.java
index 0d5f212a01ad9ccaad08cd24b70c6915b36aad39..1c2b4363a51c30efcf82a3d90988f534188b3711 100644 (file)
--- a/cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/ICdmDataSource.java
+++ b/cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/ICdmDataSource.java
@@ -9,15 +9,19 @@
 \r
 package eu.etaxonomy.cdm.database;\r
 \r
+import java.sql.DatabaseMetaData;\r
+import java.sql.ResultSet;\r
+import java.sql.SQLException;\r
+\r
 import org.hibernate.cache.CacheProvider;\r
 import org.springframework.beans.factory.config.BeanDefinition;\r
 \r
-import eu.etaxonomy.cdm.database.DbSchemaValidation;\r
+import eu.etaxonomy.cdm.model.name.NomenclaturalCode;\r
 \r
 public interface ICdmDataSource {\r
 \r
        /**\r
-        * Returns a BeanDefinition object of type  DriverManagerDataSource that contains\r
+        * Returns a BeanDefinition object of type  DataSource that contains\r
         * datsource properties (url, username, password, ...)\r
         * @return BeanDefinition\r
         */\r
@@ -73,18 +77,82 @@ public interface ICdmDataSource {
         */\r
        public H2Mode getMode();\r
        \r
-       \r
        /**\r
         * Tests, if a database connection can be established.\r
         * @return true if test was successful, false otherwise\r
+        * @throws ClassNotFoundException \r
+        * @throws SQLException \r
         * @throws Exception \r
         */\r
-       public boolean testConnection() throws Exception;\r
+       public boolean testConnection() throws ClassNotFoundException, SQLException;\r
        \r
        public String getUsername();\r
        \r
        public String getPassword();\r
        \r
+        /**\r
+     * Executes a query and returns the ResultSet.\r
+     * @return ResultSet for the query.\r
+        * @throws SQLException \r
+     */\r
+       public ResultSet executeQuery (String query) throws SQLException;\r
+       \r
+    /**\r
+     * Executes an update\r
+     * @return return code\r
+     */\r
+       public int executeUpdate (String sqlUpdate) throws SQLException;\r
+       \r
+       /**\r
+        * Starts a transaction for the given datasource.\r
+        */\r
+       public void startTransaction();\r
+       \r
+       /**\r
+        * Commits the transaction for the given datasource.\r
+        * @return\r
+        * @throws SQLException \r
+        */\r
+       public void commitTransaction() throws SQLException;\r
+       \r
+       /**\r
+        * Rolls the connection back.\r
+        * @throws SQLException \r
+        */\r
+       public void rollback() throws SQLException;\r
+\r
+\r
+       public NomenclaturalCode getNomenclaturalCode();\r
+\r
+       /**\r
+        * Returns a single the first value of a row of a resultset.\r
+        * \r
+        * <strong>Caution</strong> This method opens a connection on first use. Subsequent calls will use the same connection.\r
+        * Please close the connection when not needed anymore with {@link ICdmDataSource#closeOpenConnections()}\r
+        * \r
+        * @param query\r
+        * @return\r
+        * @throws SQLException\r
+        */\r
+       public Object getSingleValue(String query) throws SQLException; \r
+       \r
+       /**\r
+        * Returns {@link DatabaseMetaData} for <code>this</code> datasource.\r
+        * \r
+        * <br>\r
+        * <br>\r
+        * <strong>Caution</strong> This method opens a connection that should be closed\r
+        * with {@link #closeOpenConnections()}\r
+        * \r
+        * @return\r
+        */\r
+       public DatabaseMetaData getMetaData();\r
+       \r
+       /**\r
+        * \r
+        */\r
+       public void closeOpenConnections();\r
+\r
        \r
 //\r
 //     public void setFilePath(String filePath);\r