#3135: TreeTable.java

Source (first 100 lines)

/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
//         www.projectforge.org
//
// Copyright (C) 2001-2026 Micromata GmbH, Germany (www.micromata.com)
//
// ProjectForge is dual-licensed.
//
// This community edition is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 3 of the License.
//
// This community edition is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
// Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see http://www.gnu.org/licenses/.
//
/////////////////////////////////////////////////////////////////////////////

package org.projectforge.web.tree;

import java.io.Serializable;
import java.util.*;

/**
 * A TreeTable is a really nice tree view which entries will be shown as HTML table rows. The functionality of this tree is like a file
 * manager with tree view. It's much more than the source code looks like ;-) <br>
 * Attention: This implementation of a tree isn't thread safe, because modification will be done only by one thread.
 * @see TreeTableNode
 */
public abstract class TreeTable<T extends TreeTableNode> implements Serializable
{
  private static final long serialVersionUID = -8178813483140004622L;

  /** The root node. */
  protected T root;

  /**
   * All opened nodes will be registered with their hashIds in an HashSet, so after reloading data the open node history should be restored.
   */
  private Set<Serializable> openedNodes = new HashSet<Serializable>();

  /** For faster finding containing nodes by hashId. */
  protected Map<Serializable, T> allNodes = new HashMap<Serializable, T>();

  /**
   * @return True, if at least the root node is given.
   */
  public boolean isInitialized()
  {
    return this.root != null;
  }

  /**
   * Gets nodes as list. For the first time, only the top level children will be shown. After the user is able to open and close some entries
   * like in an file manager tree view.
   */
  @SuppressWarnings("unchecked")
  public List<T> getNodeList(TreeTableFilter<TreeTableNode> filter)
  {
    List<T> nodes = new ArrayList<T>();
    if (root == null) {
      return null;
    }
    SortedSet<T> children = (SortedSet<T>) root.getChildren();
    if (children != null) {
      for (T node : children) {
        node.buildNodeList((List<TreeTableNode>) nodes, 0, filter);
      }
    }
    return nodes;
  }

  /**
   * Gets all available nodes as list.
   */
  public List<T> getAllNodes()
  {
    return getNodeList(null);
  }

  /**
   * Called after user has clicked on folder / folder open icon.
   * @param hashId The hashID of the node for which the event was released.
   * @param eventKey If "open" then the node will be opened if already closed, otherwise the node will be opened if already closed.
   * @return Found TreeNode by hashId, otherwise null.
   */
  public TreeTableNode setOpenedStatusOfNode(String eventKey, Serializable hashId)
  {
    if ("explore".equals(eventKey) == true) {
      return setOpenedStatusOfNode(TreeTableEvent.EXPLORE, hashId);
    } else if ("implore".equals(eventKey) == true) {
      return setOpenedStatusOfNode(TreeTableEvent.IMPLORE, hashId);
    } else if ("open".equals(eventKey) == true) {
      return setOpenedStatusOfNode(TreeTableEvent.OPEN, hashId);
    } else {

Git History

868d6abb7 2025 -> 2026
63081666f Source file headers: 2024-> 2025.
b6092df09 Copyright 2023 -> 2024
ab45d51fa Copyright 2001-2022 -> 2001-2023.
5f7ef41b8 Copyright 2021 -> 2022

868d6abb75cd191a892911ac8e45058932cf9074
diff --git a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
index 25359ff2b..138987be9 100644
--- a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
+++ b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
@@ -3,7 +3,7 @@
 // Project ProjectForge Community Edition
 //         www.projectforge.org
 //
-// Copyright (C) 2001-2025 Micromata GmbH, Germany (www.micromata.com)
+// Copyright (C) 2001-2026 Micromata GmbH, Germany (www.micromata.com)
 //
 // ProjectForge is dual-licensed.
 //

63081666f620fb87315f01b817e560e0b2f6a33a
diff --git a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
index 8e8261956..25359ff2b 100644
--- a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
+++ b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
@@ -3,7 +3,7 @@
 // Project ProjectForge Community Edition
 //         www.projectforge.org
 //
-// Copyright (C) 2001-2024 Micromata GmbH, Germany (www.micromata.com)
+// Copyright (C) 2001-2025 Micromata GmbH, Germany (www.micromata.com)
 //
 // ProjectForge is dual-licensed.
 //

b6092df0927c4a3b161e888445f31dcab57493f2
diff --git a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
index 61329cc9d..8e8261956 100644
--- a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
+++ b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
@@ -3,7 +3,7 @@
 // Project ProjectForge Community Edition
 //         www.projectforge.org
 //
-// Copyright (C) 2001-2023 Micromata GmbH, Germany (www.micromata.com)
+// Copyright (C) 2001-2024 Micromata GmbH, Germany (www.micromata.com)
 //
 // ProjectForge is dual-licensed.
 //

ab45d51fa419ede6174b31d69987f96d4b841ff9
diff --git a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
index 389c1e9fa..61329cc9d 100644
--- a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
+++ b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
@@ -3,7 +3,7 @@
 // Project ProjectForge Community Edition
 //         www.projectforge.org
 //
-// Copyright (C) 2001-2022 Micromata GmbH, Germany (www.micromata.com)
+// Copyright (C) 2001-2023 Micromata GmbH, Germany (www.micromata.com)
 //
 // ProjectForge is dual-licensed.
 //

5f7ef41b8cbbf29b1bff094f0c0b708dcaecb19e
diff --git a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
index 241fdfc4c..389c1e9fa 100644
--- a/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
+++ b/projectforge-wicket/src/main/java/org/projectforge/web/tree/TreeTable.java
@@ -3,7 +3,7 @@
 // Project ProjectForge Community Edition
 //         www.projectforge.org
 //
-// Copyright (C) 2001-2021 Micromata GmbH, Germany (www.micromata.com)
+// Copyright (C) 2001-2022 Micromata GmbH, Germany (www.micromata.com)
 //
 // ProjectForge is dual-licensed.
 //