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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.database.types;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import org.hibernate.dialect.Dialect;
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import org.hibernate.dialect.SQLServer2005Dialect;
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import eu.etaxonomy.cdm.database.CdmDataSource;
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import eu.etaxonomy.cdm.database.ICdmDataSource;
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/**
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* @author a.mueller
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*
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*/
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public class SqlServer2005DatabaseType extends DatabaseTypeBase {
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//name
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protected String typeName = "SQL Server";
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//driver class
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protected String classString = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
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//url
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protected String urlString = "jdbc:sqlserver://";
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//[serverName[\instanceName][:portNumber]][;property=value[;property=value]]
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//default port
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protected int defaultPort = 1433;
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//hibernate dialect
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protected Dialect hibernateDialect = new SQLServer2005Dialect();
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public String getConnectionString(ICdmDataSource ds, int port){
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return getConnectionString(ds, port, null);
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}
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public String getConnectionString(ICdmDataSource ds, int port, String instanceName){
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String instance = "";
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if (instanceName != null && ! instanceName.equals("")){
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instance = "\\" + instanceName;
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}
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return urlString + ds.getServer() + instance + ":" + port + ";databaseName=" + ds.getDatabase() +";SelectMethod=cursor";
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.database.types.DatabaseTypeBase#getServerNameByConnectionString(java.lang.String)
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*/
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@Override
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public String getServerNameByConnectionString(String connectionString) {
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String dbSeparator = ";";
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return super.getServerNameByConnectionString(connectionString, urlString, dbSeparator);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.database.types.DatabaseTypeBase#getPortByConnectionString(java.lang.String)
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*/
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@Override
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public int getPortByConnectionString(String connectionString) {
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String dbSeparator = ";";
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return getPortByConnectionString(connectionString, urlString, dbSeparator);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.database.types.DatabaseTypeBase#getServerNameByConnectionString(java.lang.String)
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*/
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@Override
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public String getDatabaseNameByConnectionString(String connectionString){
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String result;
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String dbStart = ";databaseName=";
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int posDbStart = connectionString.indexOf(dbStart);
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result = connectionString.substring(posDbStart + dbStart.length());
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int posNextAttr = result.indexOf(";");
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if (posNextAttr != 0){
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result = result.substring(0, posNextAttr);
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}
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return result;
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}
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//Constructor
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public SqlServer2005DatabaseType() {
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init (typeName, classString, urlString, defaultPort, hibernateDialect );
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}
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/**
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* Deletes all foreign keys between tables in a sql server database.
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* This makes deleting tables easier.
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* @param sqlServerDataSource
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* @return
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* @throws SQLException
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*/
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public boolean deleteForeignKeys(CdmDataSource sqlServerDataSource) throws SQLException{
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String sql = "SELECT name, id FROM sys.sysobjects WHERE (xtype = 'U')"; //all tables
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ResultSet rs = sqlServerDataSource.executeQuery(sql);
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while (rs.next()){
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String tableName = rs.getString("name");
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long tableId = rs.getLong("id");
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sql = "SELECT name FROM sys.sysobjects WHERE xtype='F' and parent_obj = " + tableId;//get foreignkeys
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ResultSet rsFk = sqlServerDataSource.executeQuery(sql);
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while (rsFk.next()){
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String fk = rsFk.getString("name");
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sql = " ALTER TABLE "+tableName+" DROP CONSTRAINT "+fk + "";
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sqlServerDataSource.executeUpdate(sql);
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}
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}
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return true;
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}
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}
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