hirondelle.web4j.database
Class ConvertColumnImpl

Object
  hirondelle.web4j.database.ConvertColumnImpl

All Implemented Interfaces:

ConvertColumn

public class ConvertColumnImpl
extends Object
implements ConvertColumn

Default implementation of ConvertColumn, suitable for most applications.

This class converts non-null items using :

Target Class	Use
SafeText	ResultSet.getString(), or ResultSet.getClob()
String (if allowed)	ResultSet.getString(), or ResultSet.getClob()
Integer	ResultSet.getInt()
Long	ResultSet.getLong()
Boolean	ResultSet.getBoolean()
BigDecimal	ResultSet.getBigDecimal()
Decimal	ResultSet.getBigDecimal()
Id	ResultSet.getString(), new Id(String)
DateTime	ResultSet.getString(), pass to DateTime.DateTime(String)
Date	ResultSet.getTimestamp(), possibly with hint provided in web.xml
Locale	ResultSet.getString(), Util.buildLocale(String)
TimeZone	ResultSet.getString(), Util.buildTimeZone(String)
InputStream	ResultSet.getBinaryStream()

This implementation supports the same building block classes defined by another default implementation : ConvertParamImpl.isSupported(Class). See that class for important information on the conditional support of String.

Constructor Summary

ConvertColumnImpl()

Method Summary

<T> T

convert(ResultSet aRow, int aColumnIdx, Class<T> aSupportedTargetType) Defines policies for converting a column of a ResultSet into a possibly-null Object.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConvertColumnImpl

public ConvertColumnImpl()

Method Detail

convert

public <T> T convert(ResultSet aRow,
                     int aColumnIdx,
                     Class<T> aSupportedTargetType)
          throws SQLException

Defines policies for converting a column of a ResultSet into a possibly-null Object.

Specified by:

convert in interface ConvertColumn

Parameters:

aRow - of a ResultSet

aColumnIdx - particular column of aRow

aSupportedTargetType - is a class supported by the configured implementation of ConvertParam.isSupported(Class).

Throws:

SQLException