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
DesignChoiceConstants.PARAM_TYPE_DATETIME );
		}
	}
	/**
	 * Validates the input value at the given locale. The format is: general
	 * number.
	 * 
	 * @param dataType
	 *            the data type
	 * @param value
	 *            the value to validate
	 * @param locale
	 *            the locale information
	 * @return the double value if validation is successful
	 * @throws ValidationValueException
	 *             if the value is invalid
	 */
	static final Number doValidateNumber( String dataType, String value,
			ULocale locale ) throws ValidationValueException
	{
		assert DesignChoiceConstants.PARAM_TYPE_FLOAT
				.equalsIgnoreCase( dataType )
				|| DesignChoiceConstants.PARAM_TYPE_DECIMAL
						.equalsIgnoreCase( dataType )
				|| DesignChoiceConstants.PARAM_TYPE_INTEGER
						.equalsIgnoreCase( dataType );
		value = StringUtil.trimString( value );
		if ( value == null )
			return null;
		NumberFormat localeFormatter = DesignChoiceConstants.PARAM_TYPE_INTEGER