Bug 177691 Support Date/Time type in BIRT.
We plan to support Date/Time type in BIRT. Please refer to attached document/patch file for necessary info.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/util/ParameterValidationUtil.java
* @throws ValidationValueException
	 *             if the input value is not valid with the given data type and
	 *             format string
	 */
	static public Object validate( String dataType, String format, String value )
			throws ValidationValueException
	{
		return validate( dataType, format, value, DEFAULT_LOCALE );
	}
	/**
	 * Validates the input boolean value with the given locale.
	 * 
	 * @param value
	 *            the input value to validate
	 * @param locale
	 *            the locale information
	 * @return the <code>Boolean</code> object if the input is valid,
	 *         otherwise <code>null</code>
	 * @throws ValidationValueException
	 */
	static private Boolean doValidateBoolean( String value, ULocale locale )
			throws ValidationValueException
	{
		if ( StringUtil.isBlank( value ) )
			return null;
		
		if ( value.equalsIgnoreCase( BooleanPropertyType.TRUE ) )
			return Boolean.TRUE;
		else if ( value.equalsIgnoreCase( BooleanPropertyType.FALSE ) )
			return Boolean.FALSE;