/**********************************************************************
Copyright (c) 2004 Erik Bengtson and others. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Contributors:
2004 Andy Jefferson - localised messages
...
**********************************************************************/
package org.datanucleus.store.rdbms.mapping;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.datanucleus.ClassNameConstants;
import org.datanucleus.exceptions.NucleusDataStoreException;
import org.datanucleus.store.exceptions.NullValueException;
import org.datanucleus.store.mapped.DatastoreField;
import org.datanucleus.store.mapped.MappedStoreManager;
import org.datanucleus.store.mapped.mapping.JavaTypeMapping;
import org.datanucleus.store.rdbms.schema.SQLTypeInfo;
import org.datanucleus.store.rdbms.table.Column;
/**
* Mapping of a DOUBLE RDBMS type.
*/
public class DoubleRDBMSMapping extends RDBMSMapping
{
/**
* @param storeMgr Store Manager
* @param mapping The java type mapping
*/
protected DoubleRDBMSMapping(MappedStoreManager storeMgr, JavaTypeMapping mapping)
{
super(storeMgr, mapping);
}
/**
* Constructor.
* @param mapping The java type mapping
* @param storeMgr Store Manager
* @param field Field being mapped
*/
public DoubleRDBMSMapping(JavaTypeMapping mapping, MappedStoreManager storeMgr, DatastoreField field)
{
super(storeMgr, mapping);
column = (Column) field;
initialize();
}
private void initialize()
{
if (column != null)
{
column.checkPrimitive();
}
initTypeInfo();
}
/**
* Accessor for whether the mapping is decimal-based.
* @return Whether the mapping is decimal based
*/
public boolean isDecimalBased()
{
return true;
}
public SQLTypeInfo getTypeInfo()
{
return storeMgr.getSQLTypeInfoForJDBCType(Types.DOUBLE);
}
public void setInt(Object ps, int param, int value)
{
try
{
((PreparedStatement) ps).setDouble(param, value);
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055001","int","" + value, column, e.getMessage()), e);
}
}
public int getInt(Object rs, int param)
{
int value;
try
{
value = (int)((ResultSet) rs).getDouble(param);
if (column == null || column.getColumnMetaData() == null || !column.getColumnMetaData().isAllowsNull() )
{
if (((ResultSet) rs).wasNull())
{
throw new NullValueException(LOCALISER_RDBMS.msg("055003",column));
}
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055002","int","" + param, column, e.getMessage()), e);
}
return value;
}
public void setLong(Object ps, int param, long value)
{
try
{
((PreparedStatement) ps).setLong(param, value);
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055001","long","" + value, column, e.getMessage()), e);
}
}
public long getLong(Object rs, int param)
{
long value;
try
{
value = ((ResultSet) rs).getLong(param);
if (column == null || column.getColumnMetaData() == null || !column.getColumnMetaData().isAllowsNull() )
{
if (((ResultSet) rs).wasNull())
{
throw new NullValueException(LOCALISER_RDBMS.msg("055003",column));
}
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055002","long","" + param, column, e.getMessage()), e);
}
return value;
}
public void setDouble(Object ps, int param, double value)
{
try
{
((PreparedStatement) ps).setDouble(param, value);
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055001","double","" + value, column, e.getMessage()), e);
}
}
public double getDouble(Object rs, int param)
{
double value;
try
{
value = ((ResultSet) rs).getDouble(param);
if( column == null || column.getColumnMetaData() == null || !column.getColumnMetaData().isAllowsNull() )
{
if (((ResultSet) rs).wasNull())
{
throw new NullValueException(LOCALISER_RDBMS.msg("055003",column));
}
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055002","double","" + param, column, e.getMessage()), e);
}
return value;
}
public float getFloat(Object rs, int param)
{
float value;
try
{
value = (float) ((ResultSet) rs).getDouble(param);
if (column == null || column.getColumnMetaData() == null || !column.getColumnMetaData().isAllowsNull() )
{
if (((ResultSet) rs).wasNull())
{
throw new NullValueException(LOCALISER_RDBMS.msg("055003",column));
}
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055001","float","" + param, column, e.getMessage()), e);
}
return value;
}
public void setFloat(Object ps, int param, float value)
{
try
{
((PreparedStatement) ps).setDouble(param, value);
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055002","float","" + value, column, e.getMessage()), e);
}
}
public void setObject(Object ps, int param, Object value)
{
try
{
if (value == null)
{
((PreparedStatement) ps).setNull(param, getTypeInfo().getDataType());
}
else if (value instanceof Integer)
{
((PreparedStatement) ps).setDouble(param, ((Integer)value).doubleValue());
}
else if (value instanceof Long)
{
((PreparedStatement) ps).setDouble(param, ((Long)value).doubleValue());
}
else if (value instanceof Short)
{
((PreparedStatement) ps).setDouble(param, ((Short)value).doubleValue());
}
else if (value instanceof Float)
{
((PreparedStatement) ps).setDouble(param, ((Float)value).doubleValue());
}
else if (value instanceof Character)
{
String s = value.toString();
((PreparedStatement) ps).setDouble(param, s.charAt(0));
}
else if (value instanceof BigInteger)
{
((PreparedStatement) ps).setDouble(param, ((BigInteger)value).doubleValue());
}
else if (value instanceof BigDecimal)
{
((PreparedStatement) ps).setDouble(param, ((BigDecimal)value).doubleValue());
}
else
{
((PreparedStatement) ps).setDouble(param, ((Double)value).doubleValue());
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055001","Object","" + value,column, e.getMessage()), e);
}
}
public Object getObject(Object rs, int param)
{
Object value;
try
{
double d = ((ResultSet) rs).getDouble(param);
if (getJavaTypeMapping().getJavaType().getName().equals(ClassNameConstants.JAVA_LANG_INTEGER))
{
value = ((ResultSet) rs).wasNull() ? null : Integer.valueOf((int)d);
}
else if (getJavaTypeMapping().getJavaType().getName().equals(ClassNameConstants.JAVA_LANG_LONG))
{
value = ((ResultSet) rs).wasNull() ? null : Long.valueOf((long)d);
}
else if (getJavaTypeMapping().getJavaType().getName().equals(ClassNameConstants.JAVA_LANG_FLOAT))
{
value = ((ResultSet) rs).wasNull() ? null : new Float(d);
}
else
{
value = ((ResultSet) rs).wasNull() ? null : Double.valueOf(d);
}
}
catch (SQLException e)
{
throw new NucleusDataStoreException(LOCALISER_RDBMS.msg("055002","Object","" + param, column, e.getMessage()), e);
}
return value;
}
}