diff -r 7e08730da258 -r 4a1864c3e867 java/sql-dk/src/main/java/info/globalcode/sql/dk/configuration/Configuration.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/configuration/Configuration.java	Mon Mar 04 20:15:24 2019 +0100
@@ -0,0 +1,173 @@
+/**
+ * SQL-DK
+ * Copyright © 2013 František Kučera (frantovo.cz)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package info.globalcode.sql.dk.configuration;
+
+import static info.globalcode.sql.dk.Xmlns.CONFIGURATION;
+import static info.globalcode.sql.dk.Functions.findByName;
+import info.globalcode.sql.dk.formatting.BarChartFormatter;
+import info.globalcode.sql.dk.formatting.SilentFormatter;
+import info.globalcode.sql.dk.formatting.SingleRecordFormatter;
+import info.globalcode.sql.dk.formatting.SingleValueFormatter;
+import info.globalcode.sql.dk.formatting.TabularFormatter;
+import info.globalcode.sql.dk.formatting.TabularPrefetchingFormatter;
+import info.globalcode.sql.dk.formatting.TabularWrappingFormatter;
+import info.globalcode.sql.dk.formatting.TeXFormatter;
+import info.globalcode.sql.dk.formatting.XhtmlFormatter;
+import info.globalcode.sql.dk.formatting.XmlFormatter;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
+
+/**
+ * Object representation of user configuration loaded from XML.
+ *
+ * @author Ing. František Kučera (frantovo.cz)
+ */
+@XmlRootElement(name = "configuration", namespace = CONFIGURATION)
+public class Configuration {
+
+	private List<DatabaseDefinition> databases = new ArrayList<>();
+	private List<FormatterDefinition> formatters = new ArrayList<>();
+	/**
+	 * is used if no formatter is specified on CLI nor in user configuration
+	 */
+	public static final String DEFAULT_FORMATTER = TabularFormatter.NAME;
+	/**
+	 * Can be used as default if prefetching is ok – for configuration listings (config is alread in
+	 * memory, so this does not matter)
+	 */
+	public static final String DEFAULT_FORMATTER_PREFETCHING = TabularPrefetchingFormatter.NAME;
+	private String defaultFormatter;
+	/**
+	 * Default list of formatters. Is used if particular name is not found in user configuration.
+	 */
+	private static final Collection<FormatterDefinition> buildInFormatters;
+
+	static {
+		Collection<FormatterDefinition> l = new ArrayList<>();
+		l.add(new FormatterDefinition(SilentFormatter.NAME, SilentFormatter.class.getName()));
+		l.add(new FormatterDefinition(SingleValueFormatter.NAME, SingleValueFormatter.class.getName()));
+		l.add(new FormatterDefinition(SingleRecordFormatter.NAME, SingleRecordFormatter.class.getName()));
+		l.add(new FormatterDefinition(XmlFormatter.NAME, XmlFormatter.class.getName()));
+		l.add(new FormatterDefinition(XhtmlFormatter.NAME, XhtmlFormatter.class.getName()));
+		l.add(new FormatterDefinition(TabularFormatter.NAME, TabularFormatter.class.getName()));
+		l.add(new FormatterDefinition(TabularPrefetchingFormatter.NAME, TabularPrefetchingFormatter.class.getName()));
+		l.add(new FormatterDefinition(TabularWrappingFormatter.NAME, TabularWrappingFormatter.class.getName()));
+		l.add(new FormatterDefinition(TeXFormatter.NAME, TeXFormatter.class.getName()));
+		//l.add(new FormatterDefinition(DsvFormatter.NAME, DsvFormatter.class.getName()));
+		//l.add(new FormatterDefinition(SystemCommandExecutor.NAME, SystemCommandExecutor.class.getName()));
+		l.add(new FormatterDefinition(BarChartFormatter.NAME, BarChartFormatter.class.getName()));
+		buildInFormatters = Collections.unmodifiableCollection(l);
+	}
+
+	@XmlElement(name = "database", namespace = CONFIGURATION)
+	public List<DatabaseDefinition> getDatabases() {
+		return databases;
+	}
+
+	public void setDatabases(List<DatabaseDefinition> databases) {
+		this.databases = databases;
+	}
+
+	/**
+	 * @param name
+	 * @return
+	 * @throws ConfigurationException if no database with this name is configured
+	 */
+	public DatabaseDefinition getDatabase(String name) throws ConfigurationException {
+		DatabaseDefinition dd = findByName(databases, name);
+		if (dd == null) {
+			throw new ConfigurationException("Database is not configured: " + name);
+		} else {
+			return dd;
+		}
+	}
+
+	/**
+	 * @return only configured formatters
+	 * @see #getBuildInFormatters()
+	 * @see #getAllFormatters()
+	 */
+	@XmlElement(name = "formatter", namespace = CONFIGURATION)
+	public List<FormatterDefinition> getFormatters() {
+		return formatters;
+	}
+
+	public void setFormatters(List<FormatterDefinition> formatters) {
+		this.formatters = formatters;
+	}
+
+	/**
+	 * @param name name of desired formatter. Looking for this name in user configuration, then in
+	 * buil-in formatters. If null, default from configuration or (if not configured) built-in
+	 * default is used.
+	 * @return formatter definition
+	 * @throws ConfigurationException if no formatter with this name was found
+	 */
+	public FormatterDefinition getFormatter(String name) throws ConfigurationException {
+		if (name == null) {
+			return defaultFormatter == null ? getFormatter(DEFAULT_FORMATTER) : getFormatter(defaultFormatter);
+		} else {
+			FormatterDefinition fd = findByName(formatters, name);
+			fd = fd == null ? findByName(buildInFormatters, name) : fd;
+			if (fd == null) {
+				throw new ConfigurationException("Formatter is not configured: " + name);
+			} else {
+				return fd;
+			}
+		}
+	}
+
+	/**
+	 * @return only built-in formatters
+	 * @see #getAllFormatters()
+	 * @see #getFormatters()
+	 */
+	@XmlTransient
+	public Collection<FormatterDefinition> getBuildInFormatters() {
+		return buildInFormatters;
+	}
+
+	/**
+	 * @return built-in + configured formatters
+	 * @see #getFormatters()
+	 */
+	@XmlTransient
+	public Collection<FormatterDefinition> getAllFormatters() {
+		Collection<FormatterDefinition> allFormatters = new ArrayList<>();
+		allFormatters.addAll(buildInFormatters);
+		allFormatters.addAll(formatters);
+		return allFormatters;
+	}
+
+	/**
+	 * @return name of default formatter, is used if name is not specified on CLI
+	 */
+	@XmlElement(name = "defaultFormatter", namespace = CONFIGURATION)
+	public String getDefaultFormatter() {
+		return defaultFormatter;
+	}
+
+	public void setDefaultFormatter(String defaultFormatter) {
+		this.defaultFormatter = defaultFormatter;
+	}
+}