/*
* 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.manager.AmberPersistenceUnit;
import com.caucho.java.JavaWriter;
import com.caucho.util.L10N;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
/**
* The type of a property.
*/
public class BigIntegerType extends AmberType {
private static final L10N L = new L10N(BigIntegerType.class);
private BigIntegerType()
{
}
/**
* Returns the singleton BigInteger type.
*/
public static BigIntegerType create()
{
return new BigIntegerType();
}
/**
* Returns the type name.
*/
public String getName()
{
return "java.math.BigInteger";
}
/**
* Returns true for a numeric type.
*/
public boolean isNumeric()
{
return true;
}
/**
* Generates a string to load the property.
*/
public int generateLoad(JavaWriter out, String rs,
String indexVar, int index)
throws IOException
{
out.print(rs + ".getBigDecimal(" + indexVar + " + " + index + ")");
out.print(" == null || " + rs + ".wasNull() ? null : ");
out.print(rs + ".getBigDecimal(" + indexVar + " + " + index + ").toBigInteger()");
return index + 1;
}
/**
* Generates a string to load the property.
*/
@Override
public int generateLoadNative(JavaWriter out, int index)
throws IOException
{
out.print("com.caucho.amber.type.BigIntegerType.toBigInteger(rs.getBigDecimal(columnNames[" + index + "]), rs.wasNull())");
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.DECIMAL);");
out.println("else");
out.println(" " + pstmt + ".setBigDecimal(" + index + "++, new java.math.BigDecimal(" + value + "));");
}
/**
* Sets the value.
*/
public void setParameter(PreparedStatement pstmt, int index, Object value)
throws SQLException
{
if (value == null)
pstmt.setNull(index, java.sql.Types.DECIMAL);
else
pstmt.setBigDecimal(index, new BigDecimal((BigInteger) value));
}
/**
* Gets the value.
*/
public Object getObject(ResultSet rs, int index)
throws SQLException
{
BigDecimal v = rs.getBigDecimal(index);
if (rs.wasNull())
return null;
return v.toBigInteger();
}
public String generateCreateColumnSQL(AmberPersistenceUnit manager,
int length,
int precision,
int scale)
{
return manager.getCreateColumnSQL(Types.NUMERIC, length, precision, scale);
}
/**
* Converts a value to a int.
*/
public static BigInteger toBigInteger(BigDecimal value, boolean wasNull)
{
if (wasNull || value == null)
return null;
else
return value.toBigInteger();
}
}