displaytype.java

Java写的ERP系统

/******************************************************************************
 * The contents of this file are subject to the   Compiere License  Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * You may obtain a copy of the License at http://www.compiere.org/license.html
 * Software distributed under the License is distributed on an  "AS IS"  basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 * The Original Code is                  Compiere  ERP & CRM  Business Solution
 * The Initial Developer of the Original Code is Jorg Janke  and ComPiere, Inc.
 * Portions created by Jorg Janke are Copyright (C) 1999-2001 Jorg Janke, parts
 * created by ComPiere are Copyright (C) ComPiere, Inc.;   All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package org.compiere.util;

import java.text.*;
import java.util.*;

/**
 *	System Display Types
 *  <pre>
 *	SELECT AD_Reference_ID, Name FROM AD_Reference WHERE ValidationType = 'D'
 *  </pre>
 *  @author     Jorg Janke
 *  @version    $Id: DisplayType.java,v 1.2 2003/04/29 09:28:15 jpedersen Exp $
 */
public final class DisplayType
{
	/** Display Type    */
	public static final int String     = 10;
	/** Display Type    */
	public static final int Integer    = 11;
	/** Display Type    */
	public static final int Amount     = 12;
	/** Display Type    */
	public static final int ID         = 13;
	/** Display Type    */
	public static final int Text       = 14;
	/** Display Type    */
	public static final int Date       = 15;
	/** Display Type    */
	public static final int DateTime   = 16;
	/** Display Type    */
	public static final int List       = 17;
	/** Display Type    */
	public static final int Table      = 18;
	/** Display Type    */
	public static final int TableDir   = 19;
	/** Display Type    */
	public static final int YesNo      = 20;
	/** Display Type    */
	public static final int Location   = 21;
	/** Display Type    */
	public static final int Number     = 22;
	/** Display Type    */
	public static final int Binary     = 23;
	/** Display Type    */
	public static final int Time       = 24;
	/** Display Type    */
	public static final int Account    = 25;
	/** Display Type    */
	public static final int RowID      = 26;
	/** Display Type    */
	public static final int Color      = 27;
	/** Display Type    */
	public static final int Button	   = 28;
	/** Display Type    */
	public static final int Quantity   = 29;
	/** Display Type    */
	public static final int Search     = 30;
	/** Display Type    */
	public static final int Locator    = 31;
	/** Display Type    */
	public static final int Image      = 32;
	/** DisplayType		*/
	public static final int Assignment = 33;
	/** DisplayType		*/
	public static final int Memo       = 34;

	//  See DBA_DisplayType.sql ----------------------------------------------

	/** Maximum number of digits    */
	private static final int    MAX_DIGITS = 28;        //  Oracle Standard Limitation 38 digits
	/** Digits of an Integer        */
	private static final int    INTEGER_DIGITS = 10;
	/** Maximum number of fractions */
	private static final int    MAX_FRACTION = 12;
	/** Default Amount Precision    */
	private static final int    AMOUNT_FRACTION = 2;

	/**
	 *	Returns true if (numeric) ID.
	 *  (stored as Integer)
	 *  @param displayType Display Type
	 *  @return true if ID
	 */
	public static boolean isID (int displayType)
	{
		if (displayType == ID || displayType == Table || displayType == TableDir
			|| displayType == Search || displayType == Location || displayType == Locator
			|| displayType == Account || displayType == Assignment)
			return true;
		return false;
	}	//	isID

	/**
	 *	Returns true, if DisplayType is numeric (Amount, Number, Quantity, Integer).
	 *  (stored as BigDecimal)
	 *  @param displayType Display Type
	 *  @return true if numeric
	 */
	public static boolean isNumeric(int displayType)
	{
		if (displayType == Amount || displayType == Number
			|| displayType == Integer || displayType == Quantity)
			return true;
		return false;
	}	//	isNumeric

	/**
	 *	Returns truem if DisplayType is a Date.
	 *  (stored as Timestamp)
	 *  @param displayType Display Type
	 *  @return true if date
	 */
	public static boolean isDate (int displayType)
	{
		if (displayType == Date || displayType == DateTime || displayType == Time)
			return true;
		return false;
	}	//	isDate

	/**
	 *	Returns true if DisplayType is a VLookup.
	 *  (stored as Integer)
	 *  @param displayType Display Type
	 *  @return true if Lookup
	 */
	public static boolean isLookup(int displayType)
	{
		if (displayType == List || displayType == Table
			|| displayType == TableDir || displayType == Search)
			return true;
		return false;
	}	//	isLookup

	/*************************************************************************/

	/**
	 *	Return Format for numeric DisplayType
	 *  @param displayType Display Type (default Number)
	 *  @param language Language
	 *  @return number format
	 */
	public static DecimalFormat getNumberFormat(int displayType, Language language)
	{
		Language myLanguage = language;
		if (myLanguage == null)
			myLanguage = Language.getLanguage();
		Locale locale = myLanguage.getLocale();
		DecimalFormat format = null;
		if (locale != null)
			format = (DecimalFormat)NumberFormat.getNumberInstance(locale);
		else
			format = (DecimalFormat)NumberFormat.getNumberInstance(Locale.US);
		//
		if (displayType == Integer)
		{
			format.setParseIntegerOnly(true);
			format.setMaximumIntegerDigits(INTEGER_DIGITS);
			format.setMaximumFractionDigits(0);
		}
		else if (displayType == Quantity)
		{
			format.setMaximumIntegerDigits(MAX_DIGITS);
			format.setMaximumFractionDigits(MAX_FRACTION);
		}
		else if (displayType == Amount)
		{
			format.setMaximumIntegerDigits(MAX_DIGITS);
			format.setMaximumFractionDigits(AMOUNT_FRACTION);
			format.setMinimumFractionDigits(AMOUNT_FRACTION);
		}
		else //	if (displayType == Number)
		{
			format.setMaximumIntegerDigits(MAX_DIGITS);
			format.setMaximumFractionDigits(MAX_FRACTION);
			format.setMinimumFractionDigits(1);
		}
		return format;
	}	//	getDecimalFormat

	/**
	 *	Return Format for numeric DisplayType
	 *  @param displayType Display Type
	 *  @return number format
	 */
	public static DecimalFormat getNumberFormat(int displayType)
	{
		return getNumberFormat (displayType, null);
	}   //  getNumberFormat


	/*************************************************************************/

	/**
	 *	Return Date Format
	 *  @return date format
	 */
	public static SimpleDateFormat getDateFormat()
	{
		return getDateFormat (DisplayType.Date, null);
	}   //  getDateFormat

	/**
	 *	Return Date Format
	 *  @param language Language
	 *  @return date format
	 */
	public static SimpleDateFormat getDateFormat (Language language)
	{
		return getDateFormat (DisplayType.Date, language);
	}	//	getDateFormat

	/**
	 *	Return format for date displayType
	 *  @param displayType Display Type
	 *  @return date format
	 */
	public static SimpleDateFormat getDateFormat (int displayType)
	{
		return getDateFormat (displayType, null);
	}   //  getDateFormat

	/**
	 *	Return format for date displayType
	 *  @param displayType Display Type (default Date)
	 *  @param language Language
	 *  @return date format
	 */
	public static SimpleDateFormat getDateFormat (int displayType, Language language)
	{
		Language myLanguage = language;
		if (myLanguage == null)
			myLanguage = Language.getLanguage();
		//
		if (displayType == DateTime)
			return myLanguage.getDateTimeFormat();
		else if (displayType == Time)
			return myLanguage.getTimeFormat();
	//	else if (displayType == Date)
		return myLanguage.getDateFormat();		//	default
	}	//	getDateFormat

	/**
	 *	JDBC Date Format YYYY-MM-DD
	 *  @return date format
	 */
	static public SimpleDateFormat getDateFormat_JDBC()
	{
		return new SimpleDateFormat ("yyyy-MM-dd");
	}   //  getDateFormat_JDBC

	/**
	 *  Return Storage Class.
	 *  (used for MiniTable)
	 *  @param displayType Display Type
	 *  @param yesNoAsBoolean - yes or no as boolean
	 *  @return class Integer - BigDecimal - Timestamp - String - Boolean
	 */
	public static Class getClass (int displayType, boolean yesNoAsBoolean)
	{
		if (displayType == String || displayType == Text || displayType == List || displayType == Memo)
			return String.class;
		else if (isID(displayType) || displayType == Integer)    //  note that Integer is stored as BD
			return Integer.class;
		else if (isNumeric(displayType))
			return java.math.BigDecimal.class;
		else if (isDate(displayType))
			return java.sql.Timestamp.class;
		else if (displayType == YesNo && yesNoAsBoolean)
			return Boolean.class;
		else if (displayType == Button)
			return String.class;
		//
		return Object.class;
	}   //  getClass

}	//	DisplayType