archive/net.sourceforge.phpeclipse.sql/src/net/sourceforge/phpdt/sql/view/bookmark/GroupNode.java

   1 /*
   2  * Created on 27/06/2003
   3  *
   4  */
   5 package net.sourceforge.phpdt.sql.view.bookmark;
   6
   7 import java.net.MalformedURLException;
   8 import java.net.URL;
   9 import java.util.Collections;
  10 import java.util.Vector;
  11
  12 import org.eclipse.jface.resource.ImageDescriptor;
  13 import org.eclipse.swt.graphics.Image;
  14
  15 import net.sourceforge.phpdt.sql.PHPEclipseSQLPlugin;
  16 import net.sourceforge.phpdt.sql.sql.metadata.ObjectMetaData;
  17
  18 /**
  19  * GroupNode represents a level of grouping in the BookmarkView hierarchy
  20  * It will have categories like "TABLE", "VIEW" and so on, usually gotten from
  21  * the JDBC driver.
  22  * @author panic
  23  *
  24  */
  25 public class GroupNode implements TreeNode, Comparable {
  26         private BookmarkNode parent = null;
  27         private Vector children = new Vector();
  28         private String name = null;
  29         private int size = -1;
  30
  31         public GroupNode(BookmarkNode parent, String name) {
  32                 this.parent = parent;
  33                 this.name = name;
  34         }
  35         public ObjectMetaData getMetaData() {
  36                 return null;    //no metadata
  37         }
  38
  39         public boolean hasChildren() {
  40                 if (children != null && children.size() > 0) {
  41                         return true;
  42                 }
  43                 return false;
  44         }
  45         public Object[] getChildren() {
  46                 return children.toArray();
  47         }
  48
  49         public Object getParent() {
  50                 return parent;
  51         }
  52         public String getName() {
  53                 return name;
  54         }
  55
  56         public String toString() {
  57                 return name;
  58         }
  59
  60         public void addChild(Object child)
  61         {
  62                 if (!(child instanceof TreeNode)) return;
  63                 if (name == "TABLE" && !(child instanceof TableNode)) return;
  64                 if (name == "VIEW" && !(child instanceof ViewNode)) return;
  65                 if (name == "SEQUENCE" && !(child instanceof SequenceNode)) return;
  66                 children.add(child);
  67                 Collections.sort(children);
  68         }
  69
  70         public int compareTo(Object o) {
  71                 if (o instanceof GroupNode) {
  72                         GroupNode node = (GroupNode) o;
  73                         return name.compareTo(node.getName());
  74                 }
  75                 return 0;
  76         }
  77         /**
  78          * @return an Image object to appear in the view
  79          * @throws MalformedURLException
  80          */
  81         public Image getImage() throws MalformedURLException {
  82                 // We'll return an icon if it's part of the primary key
  83                 URL installURL = PHPEclipseSQLPlugin.getDefault().getDescriptor().getInstallURL();
  84                 URL url = null;
  85                 if (name == "TABLE") {
  86                         url = new URL(installURL, "icons/greentable.gif"); //$NON-NLS-1$
  87                 } else if (name == "VIEW") {
  88                         url = new URL(installURL, "icons/view.gif"); //$NON-NLS-1$
  89                 } else if (name == "SEQUENCE") {
  90                         url = new URL(installURL, "icons/sequence.gif"); //$NON-NLS-1$
  91                 }
  92
  93                 if (url != null) {
  94                         ImageDescriptor descriptor = ImageDescriptor.createFromURL(url);
  95                         return descriptor.createImage();
  96                 } else
  97                         return null;
  98         }
  99
 100
 101 }