/*
    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    *
    * This software is open source.
    * See the bottom of this file for the licence.
    */
   
   package org.dom4j.swing;
   
  import java.io.Serializable;
  
  import org.dom4j.DocumentHelper;
  import org.dom4j.Node;
  import org.dom4j.XPath;
  
  /***
   * <p>
   * <code>XMLTableColumnDefinition</code> a column within a table definition.
   * </p>
   * 
   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
   * @version $Revision: 1.10 $
   */
  public class XMLTableColumnDefinition implements Serializable {
      public static final int OBJECT_TYPE = 0;
  
      public static final int STRING_TYPE = 1;
  
      public static final int NUMBER_TYPE = 2;
  
      public static final int NODE_TYPE = 3;
  
      /*** Holds value of property type. */
      private int type;
  
      /*** Holds value of property name. */
      private String name;
  
      /*** Holds value of property xpath. */
      private XPath xpath;
  
      /*** Holds the XPath used for the column name */
      private XPath columnNameXPath;
  
      public XMLTableColumnDefinition() {
      }
  
      public XMLTableColumnDefinition(String name, String expression, int type) {
          this.name = name;
          this.type = type;
          this.xpath = createXPath(expression);
      }
  
      public XMLTableColumnDefinition(String name, XPath xpath, int type) {
          this.name = name;
          this.xpath = xpath;
          this.type = type;
      }
  
      public XMLTableColumnDefinition(XPath columnXPath, XPath xpath, int type) {
          this.xpath = xpath;
          this.columnNameXPath = columnXPath;
          this.type = type;
      }
  
      public static int parseType(String typeName) {
          if ((typeName != null) && (typeName.length() > 0)) {
              if (typeName.equals("string")) {
                  return STRING_TYPE;
              } else if (typeName.equals("number")) {
                  return NUMBER_TYPE;
              } else if (typeName.equals("node")) {
                  return NODE_TYPE;
              }
          }
  
          return OBJECT_TYPE;
      }
  
      public Class getColumnClass() {
          switch (type) {
              case STRING_TYPE:
                  return String.class;
  
              case NUMBER_TYPE:
                  return Number.class;
  
              case NODE_TYPE:
                  return Node.class;
  
              default:
                  return Object.class;
          }
      }
  
      public Object getValue(Object row) {
          switch (type) {
              case STRING_TYPE:
                  return xpath.valueOf(row);
 
             case NUMBER_TYPE:
                 return xpath.numberValueOf(row);
 
             case NODE_TYPE:
                 return xpath.selectSingleNode(row);
 
             default:
                 return xpath.evaluate(row);
         }
     }
 
     // Properties
     // -------------------------------------------------------------------------
 
     /***
      * Getter for property type.
      * 
      * @return Value of property type.
      */
     public int getType() {
         return type;
     }
 
     /***
      * Setter for property type.
      * 
      * @param type
      *            New value of property type.
      */
     public void setType(int type) {
         this.type = type;
     }
 
     /***
      * Getter for property name.
      * 
      * @return Value of property name.
      */
     public String getName() {
         return name;
     }
 
     /***
      * Setter for property name.
      * 
      * @param name
      *            New value of property name.
      */
     public void setName(String name) {
         this.name = name;
     }
 
     /***
      * Getter for property xpath.
      * 
      * @return Value of property xpath.
      */
     public XPath getXPath() {
         return xpath;
     }
 
     /***
      * Setter for property xpath.
      * 
      * @param xPath
      *            New value of property xpath.
      */
     public void setXPath(XPath xPath) {
         this.xpath = xPath;
     }
 
     /***
      * DOCUMENT ME!
      * 
      * @return the XPath used to create the column name
      */
     public XPath getColumnNameXPath() {
         return columnNameXPath;
     }
 
     /***
      * Setter for property columnNameXPath.
      * 
      * @param columnNameXPath
      *            New value of property xpath.
      */
     public void setColumnNameXPath(XPath columnNameXPath) {
         this.columnNameXPath = columnNameXPath;
     }
 
     // Implementation methods
     // -------------------------------------------------------------------------
     protected XPath createXPath(String expression) {
         return DocumentHelper.createXPath(expression);
     }
 
     protected void handleException(Exception e) {
         // #### should use jakarta commons-logging
         System.out.println("Caught: " + e);
     }
 }
 
 /*
  * Redistribution and use of this software and associated documentation
  * ("Software"), with or without modification, are permitted provided that the
  * following conditions are met:
  * 
  * 1. Redistributions of source code must retain copyright statements and
  * notices. Redistributions must also contain a copy of this document.
  * 
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  * this list of conditions and the following disclaimer in the documentation
  * and/or other materials provided with the distribution.
  * 
  * 3. The name "DOM4J" must not be used to endorse or promote products derived
  * from this Software without prior written permission of MetaStuff, Ltd. For
  * written permission, please contact dom4j-info@metastuff.com.
  * 
  * 4. Products derived from this Software may not be called "DOM4J" nor may
  * "DOM4J" appear in their names without prior written permission of MetaStuff,
  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
  * 
  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
  * 
  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  * 
  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
  */