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
}
	/**
	 * Gets the display string for the value with default locale and default
	 * format, The value must be the valid data type. That is:
	 * 
	 * <ul>
	 * <li>if data type is <code>PARAM_TYPE_DATETIME</code>, then the value
	 * must be <code>java.util.Date<code>.</li>
	 * <li>if the data type is <code>PARAM_TYPE_FLOAT</code>, then the value must
	 * be <code>java.lang.Double</code>.</li>
	 * <li>if the data type is <code>PARAM_TYPE_DECIMAL</code>, then the value must
	 * be <code>java.math.BigDecimal</code>.</li>
	 * <li>if the data type is <code>PARAM_TYPE_BOOLEAN</code>, then the value must
	 * be <code>java.lang.Boolean</code>.</li>
	 * <li>if the data type is <code>PARAM_TYPE_STRING</code>, then the value must
	 * be <code>java.lang.String</code>.</li>
	 * </ul>
	 * 
	 * @param value
	 *  		the input value to validate
	 * @return the formatted string
	 */
	static public String getDisplayValue( Object value )
	{
		if ( value == null )
			return null;
		if ( value instanceof Date )
		{
			DateFormatter formatter = new DateFormatter( DEFAULT_LOCALE );
			formatter.applyPattern( DEFAULT_DATETIME_FORMAT );