WinstoneConnection.java

/*
 * Copyright 2003-2006 Rick Knowles <winstone-devel at lists sourceforge net>
 * Distributed under the terms of either:
 * - the common development and distribution license (CDDL), v1.0; or
 * - the GNU Lesser General Public License, v2.1 or later
 */
package winstone.jndi.resourceFactories;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Savepoint;
import java.sql.Statement;
import java.util.Map;

import winstone.Logger;

/**
 * JDBC Connection wrapper for use in the pooling datasource. This just suppresses 
 * the close() call, and releases the connection.
 * 
 * @author <a href="mailto:rick_knowles@hotmail.com">Rick Knowles</a>
 * @version $Id: WinstoneConnection.java,v 1.3 2006/02/28 07:32:48 rickknowles Exp $
 */
public class WinstoneConnection implements Connection {
    private Connection realConnection;
    private WinstoneDataSource datasource;
    
@Override
            public <T> T unwrap(Class<T> iface) throws SQLException {
                // TODO Auto-generated method stub
                return null;
            }

@Override
            public boolean isWrapperFor(Class<?> iface) throws SQLException {
                // TODO Auto-generated method stub
                return false;
            }

@Override
            public java.sql.Clob createClob() throws SQLException {
                // TODO Auto-generated method stub
                return null;
            }

@Override
            public java.sql.Blob createBlob() throws SQLException {
                // TODO Auto-generated method stub
                return null;
            }

public java.sql.SQLXML createSQLXML()
                    throws SQLException{
return null;
}

public java.sql.NClob createNClob()
                  throws SQLException{
return null;
}

public void setClientInfo(java.util.Properties properties)
                   throws java.sql.SQLClientInfoException{
}

public void setClientInfo(String name,
                 String value)
                   throws java.sql.SQLClientInfoException{
}

public boolean isValid(int timeout)
                throws SQLException
{
return true;
}

   public java.sql.Struct createStruct(String typeName, Object[] attributes){
      return null;
   }

  public java.util.Properties getClientInfo()
                         throws SQLException{
 
    return null;

  }
 
  public String getClientInfo(String s)
                         throws SQLException{
 
    return null;

  }

  public java.sql.Array createArrayOf(String typeName,
                  Object[] elements)
                    throws SQLException{
	return null;
}

    /**
     * Constructor - this sets the real connection and the link back to the pool
     */
    public WinstoneConnection(Connection connection,
            WinstoneDataSource datasource) {
        this.realConnection = connection;
        this.datasource = datasource;
    }

    public void close() throws SQLException {
        if ((this.datasource != null) && (this.datasource.getLogWriter() != null)) {
            this.datasource.getLogWriter().println(
                    WinstoneDataSource.DS_RESOURCES.getString(
                            "WinstoneConnection.ReleaseRollback"));
        } else {
            Logger.log(Logger.FULL_DEBUG, WinstoneDataSource.DS_RESOURCES,
                    "WinstoneConnection.ReleaseRollback");
        }
        
        Connection realConnectionHolder = null;
        try {
            if (this.realConnection != null) {
                realConnectionHolder = this.realConnection;
                this.realConnection = null;
                
                if (!realConnectionHolder.getAutoCommit())
                    realConnectionHolder.rollback();
            }
        } finally {
            if ((this.datasource != null) && (realConnectionHolder != null)) {
                this.datasource.releaseConnection(this, realConnectionHolder);
                this.datasource = null;
            }
        }
    }

    public boolean isClosed() throws SQLException {
        return (this.realConnection == null);
    }

    public void commit() throws SQLException {
        this.realConnection.commit();
    }

    public void rollback() throws SQLException {
        this.realConnection.rollback();
    }

    public void rollback(Savepoint sp) throws SQLException {
        this.realConnection.rollback(sp);
    }

    public boolean getAutoCommit() throws SQLException {
        return this.realConnection.getAutoCommit();
    }

    public void setAutoCommit(boolean autoCommit) throws SQLException {
        this.realConnection.setAutoCommit(autoCommit);
    }

    public int getHoldability() throws SQLException {
        return this.realConnection.getHoldability();
    }

    public void setHoldability(int hold) throws SQLException {
        this.realConnection.setHoldability(hold);
    }

    public int getTransactionIsolation() throws SQLException {
        return this.realConnection.getTransactionIsolation();
    }

    public void setTransactionIsolation(int level) throws SQLException {
        this.realConnection.setTransactionIsolation(level);
    }

    public void clearWarnings() throws SQLException {
        this.realConnection.clearWarnings();
    }

    public SQLWarning getWarnings() throws SQLException {
        return this.realConnection.getWarnings();
    }

    public boolean isReadOnly() throws SQLException {
        return this.realConnection.isReadOnly();
    }

    public void setReadOnly(boolean ro) throws SQLException {
        this.realConnection.setReadOnly(ro);
    }

    public String getCatalog() throws SQLException {
        return this.realConnection.getCatalog();
    }

    public void setCatalog(String catalog) throws SQLException {
        this.realConnection.setCatalog(catalog);
    }

    public DatabaseMetaData getMetaData() throws SQLException {
        return this.realConnection.getMetaData();
    }

    public Savepoint setSavepoint() throws SQLException {
        return this.realConnection.setSavepoint();
    }

    public Savepoint setSavepoint(String name) throws SQLException {
        return this.realConnection.setSavepoint(name);
    }

    public void releaseSavepoint(Savepoint sp) throws SQLException {
        this.realConnection.releaseSavepoint(sp);
    }

    public Map getTypeMap() throws SQLException {
        return this.realConnection.getTypeMap();
    }

    public void setTypeMap(Map map) throws SQLException {
        this.realConnection.setTypeMap(map);
    }

    public String nativeSQL(String sql) throws SQLException {
        return this.realConnection.nativeSQL(sql);
    }

    public CallableStatement prepareCall(String sql) throws SQLException {
        return this.realConnection.prepareCall(sql);
    }

    public CallableStatement prepareCall(String sql, int resultSetType,
            int resultSetConcurrency) throws SQLException {
        return this.realConnection.prepareCall(sql, resultSetType,
                resultSetConcurrency);
    }

    public CallableStatement prepareCall(String sql, int resultSetType,
            int resultSetConcurrency, int resultSetHoldability)
            throws SQLException {
        return this.realConnection.prepareCall(sql, resultSetType,
                resultSetConcurrency, resultSetHoldability);
    }

    public Statement createStatement() throws SQLException {
        return this.realConnection.createStatement();
    }

    public Statement createStatement(int resultSetType, int resultSetConcurrency)
            throws SQLException {
        return this.realConnection.createStatement(resultSetType,
                resultSetConcurrency);
    }

    public Statement createStatement(int resultSetType,
            int resultSetConcurrency, int resultSetHoldability)
            throws SQLException {
        return this.realConnection.createStatement(resultSetType,
                resultSetConcurrency, resultSetHoldability);
    }

    public PreparedStatement prepareStatement(String sql) throws SQLException {
        return this.realConnection.prepareStatement(sql);
    }

    public PreparedStatement prepareStatement(String sql, int autogeneratedKeys)
            throws SQLException {
        return this.realConnection.prepareStatement(sql, autogeneratedKeys);
    }

    public PreparedStatement prepareStatement(String sql, int resultSetType,
            int resultSetConcurrency) throws SQLException {
        return this.realConnection.prepareStatement(sql, resultSetType,
                resultSetConcurrency);
    }

    public PreparedStatement prepareStatement(String sql, int resultSetType,
            int resultSetConcurrency, int resultSetHoldability)
            throws SQLException {
        return this.realConnection.prepareStatement(sql, resultSetType,
                resultSetConcurrency, resultSetHoldability);
    }

    public PreparedStatement prepareStatement(String sql, int[] columnIndexes)
            throws SQLException {
        return this.realConnection.prepareStatement(sql, columnIndexes);
    }

    public PreparedStatement prepareStatement(String sql, String[] columnNames)
            throws SQLException {
        return this.realConnection.prepareStatement(sql, columnNames);
    }
}