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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Michael Powers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.jdbcadaptor;
import net.wotonomy.access.EOAdaptor;
import net.wotonomy.access.EOAdaptorContext;
import net.wotonomy.access.EOModel;
import net.wotonomy.access.EOSQLExpressionFactory;
import net.wotonomy.foundation.NSDictionary;
/**
* An adaptor that connects to a databaser server via JDBC.
*
* @author ezamudio@nasoft.com
* @author $Author: cgruber $
* @version $Revision: 903 $
*/
public class JDBCAdaptor extends EOAdaptor {
protected EOSQLExpressionFactory _expressionFactory;
protected String _driverName;
protected NSDictionary<String, String> _jdbcInfo;
/**
* Creates a new instance.
*
* @param name The name of the adaptor (should always be JDBC)
*/
public JDBCAdaptor(String name) {
super(name);
}
@SuppressWarnings("unchecked")
public void setConnectionDictionary(NSDictionary<String, Object> dict) {
super.setConnectionDictionary(dict);
if (dict.objectForKey("driver") != null)
_driverName = (String) dict.objectForKey("driver");
else
throw new JDBCAdaptorException("Connection dictionary must have a 'driver' key.", null);
if (dict.objectForKey("jdbc2Info") != null)
_jdbcInfo = (NSDictionary<String, String>) dict.objectForKey("jdbc2Info");
else
throw new JDBCAdaptorException("Connection dictionary must have a 'jdbc2Info' key.", null);
}
/*
* Checks to see if the connection dictionary is valid. Throws an exception if
* it's not.
*
* @see net.wotonomy.access.EOAdaptor#assertConnectionDictionaryIsValid()
*/
public void assertConnectionDictionaryIsValid() {
JDBCContext context = new JDBCContext(this);
context.connect();
context.disconnect();
}
/*
* Creates a JDBCContext.
*
* @see net.wotonomy.access.EOAdaptor#createAdaptorContext()
*/
public EOAdaptorContext createAdaptorContext() {
JDBCContext context = new JDBCContext(this);
_contexts.addObject(context);
return context;
}
/*
* Returns the JDBCExpression class.
*
* @see net.wotonomy.access.EOAdaptor#defaultExpressionClass()
*/
public Class<JDBCExpression> defaultExpressionClass() {
return JDBCExpression.class;
}
/*
* Returns a JDBCExpressionFactory.
*
* @see net.wotonomy.access.EOAdaptor#expressionFactory()
*/
public EOSQLExpressionFactory expressionFactory() {
if (_expressionFactory == null)
_expressionFactory = new JDBCExpressionFactory(this);
return _expressionFactory;
}
/*
* Determines if a qualifier type is valid.
*
* @see net.wotonomy.access.EOAdaptor#isValidQualifierType(java.lang.String,
* net.wotonomy.access.EOModel)
*/
public boolean isValidQualifierType(String typeName, EOModel model) {
// TODO Auto-generated method stub
return false;
}
public String driverName() {
return _driverName;
}
public NSDictionary<String, String> jdbcInfo() {
return _jdbcInfo;
}
}
/*
* $Log$ Revision 1.2 2006/02/18 22:59:22 cgruber make it compile with maven
* dependencies and add a cvsignore.
*
* Revision 1.1 2006/02/16 13:22:23 cgruber Check in all sources in
* eclipse-friendly maven-enabled packages.
*
* Revision 1.1 2003/08/13 20:09:37 chochos a concrete implementation of
* EOAdaptor for use with JDBC
*
*/
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