/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.amber.type;
import com.caucho.amber.AmberException;
import com.caucho.java.JavaWriter;
import com.caucho.util.L10N;
import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* A property containing a class
*/
public class ClassType extends AmberType {
private static final L10N L = new L10N(ClassType.class);
private static final ClassType CLASS_TYPE = new ClassType();
private ClassType()
{
}
/**
* Returns the singleton Class type.
*/
public static ClassType create()
{
return CLASS_TYPE;
}
/**
* Returns the type name.
*/
public String getName()
{
return "java.lang.Class";
}
/**
* Generates a string to load the property.
*/
public int generateLoad(JavaWriter out, String rs,
String indexVar, int index)
throws IOException
{
out.print("com.caucho.amber.type.ClassType.toClass(" + rs + ".getString(" + indexVar + " + " + index + "))");
return index + 1;
}
/**
* Generates a string to set the property.
*/
public void generateSet(JavaWriter out, String pstmt,
String index, String value)
throws IOException
{
out.println("if (" + value + " == null)");
out.println(" " + pstmt + ".setNull(" + index + "++, java.sql.Types.VARCHAR);");
out.println("else");
out.println(" " + pstmt + ".setString(" + index + "++, " + value + ".getName());");
}
/**
* Generates a string to set the property.
*/
public void generateSetNull(JavaWriter out, String pstmt, String index)
throws IOException
{
out.println(pstmt + ".setNull(" + index + "++, java.sql.Types.VARCHAR);");
}
/**
* Gets the value.
*/
public static Class toClass(String name)
throws SQLException
{
if (name == null)
return null;
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
return Class.forName(name, false, loader);
} catch (ClassNotFoundException e) {
throw new AmberException(e);
}
}
/**
* Gets the value.
*/
public Object getObject(ResultSet rs, int index)
throws SQLException
{
return toClass(rs.getString(index));
}
}