archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/view/bookmark/SchemaNode.java

   1 package com.quantum.view.bookmark;
   2
   3 import java.sql.SQLException;
   4 import java.util.HashMap;
   5 import java.util.Iterator;
   6 import java.util.Map;
   7
   8 import com.quantum.model.Bookmark;
   9 import com.quantum.model.NotConnectedException;
  10 import com.quantum.model.Schema;
  11 import com.quantum.model.SchemaHolder;
  12
  13 /**
  14  * @author BC
  15  */
  16 public class SchemaNode extends TreeNode implements SchemaHolder {
  17
  18     private Schema schema;
  19     /**
  20      * @param parent
  21      */
  22     public SchemaNode(TreeNode parent, Schema schema) {
  23         super(parent);
  24         this.schema = schema;
  25     }
  26
  27     /**
  28      * @see com.quantum.view.bookmark.TreeNode#getChildren()
  29      */
  30     public Object[] getChildren() {
  31         Bookmark bookmark = getBookmark();
  32         if (!bookmark.isConnected()) {
  33             return BookmarkListNode.EMPTY_ARRAY;
  34         } else {
  35             if (this.children.isEmpty()) {
  36                 initializeChildren();
  37             }
  38         }
  39         return (TreeNode[]) this.children.toArray(new TreeNode[this.children.size()]);
  40     }
  41
  42     protected void initializeChildren() {
  43         boolean firstTimeInitialization = this.children.isEmpty();
  44         boolean changed = false;
  45         Map temp = new HashMap();
  46         for (Iterator i = this.children.iterator(); i.hasNext();) {
  47                         GroupNode element = (GroupNode) i.next();
  48                         temp.put(element.getType(), element);
  49                 }
  50         this.children.clear();
  51
  52         Bookmark bookmark = getBookmark();
  53         try {
  54             String[] types = bookmark.getDatabase().getEntityTypes();
  55             for (int i = 0, length = (types == null) ? 0 : types.length;
  56                 i < length;
  57                 i++) {
  58                 GroupNode node = (GroupNode) temp.remove(types[i]);
  59                 if (node == null) {
  60                         this.children.add(new GroupNode(this, this.schema, types[i]));
  61                         changed = true;
  62                 } else {
  63                         this.children.add(node);
  64                 }
  65             }
  66             for (Iterator i = temp.values().iterator(); i.hasNext();) {
  67                                 ((GroupNode) i.next()).dispose();
  68                                 changed = true;
  69                         }
  70             if (!firstTimeInitialization && changed) {
  71                 firePropertyChange("children", null, null);
  72             }
  73         } catch (NotConnectedException e) {
  74         } catch (SQLException e) {
  75         }
  76     }
  77
  78     /**
  79      * @see com.quantum.view.bookmark.TreeNode#hasChildren()
  80      */
  81     public boolean hasChildren() {
  82         return getBookmark().isConnected();
  83     }
  84
  85     /**
  86      * @see com.quantum.view.bookmark.TreeNode#getName()
  87      */
  88     public String getName() {
  89         return this.schema.getDisplayName();
  90     }
  91
  92     /**
  93      * @see com.quantum.view.bookmark.TreeNode#getImageName()
  94      */
  95     protected String getImageName() {
  96         return this.schema.exists()
  97                                 ? "schema.gif"
  98                                 : "missingschema.gif";
  99     }
 100
 101     /**
 102      * @see com.quantum.model.SchemaHolder#getSchema()
 103      */
 104     public Schema getSchema() {
 105         return this.schema;
 106     }
 107 }