uk.co.weft.dbutil
Class BooleanColumnDescriptor

java.lang.Object
  uk.co.weft.dbutil.ColumnDescriptor
      uk.co.weft.dbutil.BooleanColumnDescriptor

public class BooleanColumnDescriptor

extends ColumnDescriptor

A descriptor for an boolean column

Version:

$Revision: 1.8.4.1 $ This revision: $Author: simon $

Author:

Simon Brooke

Constructor Summary

BooleanColumnDescriptor(java.lang.String n)
Creates a new BooleanColumnDescriptor object.

Method Summary

protected java.lang.String	format(Context c) Format a boolean for sending to the database.
protected java.lang.Object	interpret(Context context, java.sql.ResultSet results) put into this context an interpretation of the value of my name in these results.

Methods inherited from class uk.co.weft.dbutil.ColumnDescriptor

createColumnDescriptor, formatForInsert, formatForMatch, formatForMatch, formatForSelect, formatForUpdate, genKey, quoteValue

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanColumnDescriptor

public BooleanColumnDescriptor(java.lang.String n)

Creates a new BooleanColumnDescriptor object.

Parameters:

n - my name

Method Detail

format

protected java.lang.String format(Context c)
                           throws DataFormatException

Format a boolean for sending to the database. The ANSI SQL definition appears (to me) to be very unclear about how a boolean should be represented, but 'true' and 'false' seem to work so far.

Overrides:

format in class ColumnDescriptor

Throws:

DataFormatException

interpret

protected java.lang.Object interpret(Context context,
                                     java.sql.ResultSet results)
                              throws DataFormatException

put into this context an interpretation of the value of my name in these results. Return the interpretation. This method used to use Boolean.valueOf() until I discovered that Boolean.valueOf( "t") -> false!

Overrides:

interpret in class ColumnDescriptor

Throws:

DataFormatException