PGDouble.java :  » Database-JDBC-Connection-Pool » postgresql » org » postgresql » core » types » Java Open Source

/*
 * Created on May 15, 2005
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package org.postgresql.core.types;

import java.math.BigDecimal;
import java.sql.Types;

import org.postgresql.util.GT;
import org.postgresql.util.PSQLException;
import org.postgresql.util.PSQLState;

/**
 * @author davec
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class PGDouble implements PGType
{
    private Double val;
    
    protected PGDouble( Double x )
    {
        val = x;
    }
        
    public static PGType castToServerType( Double val, int targetType ) throws PSQLException
    {
        try
        {  
            switch ( targetType )
            {
              case Types.BIT:
                  return new PGBoolean( val.doubleValue() == 0?Boolean.FALSE:Boolean.TRUE );
              
              case Types.BIGINT:
                  return new PGLong( new Long( val.longValue() ) );
              case Types.INTEGER:
                  return new PGInteger( new Integer( val.intValue() ) ) ;
              case Types.SMALLINT:
              case Types.TINYINT:
                  return new PGShort( new Short( val.shortValue() ) );
              case Types.VARCHAR:
              case Types.LONGVARCHAR:                
                  return new PGString( val.toString() );
              case Types.DOUBLE:
              case Types.FLOAT:
                  return new PGDouble( val );
              case Types.REAL:
                  return new PGFloat( new Float( val.floatValue()));
              case Types.DECIMAL:
              case Types.NUMERIC:
                  return new PGBigDecimal( new BigDecimal( val.toString()));
              default:
                  return new PGUnknown(val);
            }
        }
        catch( Exception ex )
        {
            throw new PSQLException(GT.tr("Cannot convert an instance of {0} to type {1}", new Object[]{val.getClass().getName(),"Types.OTHER"}), PSQLState.INVALID_PARAMETER_TYPE, ex);
        }
    }
    public String toString()
    {
        return val.toString();
    }
}