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Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractTreeNodeValueModel.java')
-rw-r--r--common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractTreeNodeValueModel.java194
1 files changed, 0 insertions, 194 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractTreeNodeValueModel.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractTreeNodeValueModel.java
deleted file mode 100644
index 657676e34d..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/AbstractTreeNodeValueModel.java
+++ /dev/null
@@ -1,194 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2008 Oracle. All rights reserved.
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0, which accompanies this distribution
- * and is available at http://www.eclipse.org/legal/epl-v10.html.
- *
- * Contributors:
- * Oracle - initial API and implementation
- ******************************************************************************/
-package org.eclipse.jpt.common.utility.internal.model.value;
-
-import java.util.Iterator;
-import java.util.List;
-import org.eclipse.jpt.common.utility.internal.CollectionTools;
-import org.eclipse.jpt.common.utility.internal.iterators.ChainIterator;
-import org.eclipse.jpt.common.utility.internal.model.AbstractModel;
-import org.eclipse.jpt.common.utility.internal.model.ChangeSupport;
-import org.eclipse.jpt.common.utility.model.listener.StateChangeListener;
-import org.eclipse.jpt.common.utility.model.value.ListValueModel;
-import org.eclipse.jpt.common.utility.model.value.TreeNodeValueModel;
-
-/**
- * Subclasses need only implement the following methods:
- *
- * #value()
- * return the user-determined "value" of the node,
- * i.e. the object "wrapped" by the node
- *
- * #setValue(Object)
- * set the user-determined "value" of the node,
- * i.e. the object "wrapped" by the node;
- * typically only overridden for nodes with "primitive" values
- *
- * #parent()
- * return the parent of the node, which should be another
- * TreeNodeValueModel
- *
- * #childrenModel()
- * return a ListValueModel for the node's children
- *
- * #engageValue() and #disengageValue()
- * override these methods to listen to the node's value if
- * it can change in a way that should be reflected in the tree
- */
-public abstract class AbstractTreeNodeValueModel<T>
- extends AbstractModel
- implements TreeNodeValueModel<T>
-{
-
-
- // ********** constructors **********
-
- /**
- * Default constructor.
- */
- protected AbstractTreeNodeValueModel() {
- super();
- }
-
- @Override
- protected ChangeSupport buildChangeSupport() {
- // this model fires *both* "value property change" and "state change" events...
-// return new SingleAspectChangeSupport(this, PropertyChangeListener.class, PropertyValueModel.VALUE);
- return super.buildChangeSupport();
- }
-
-
- // ********** extend AbstractModel implementation **********
-
- /**
- * Clients should be adding both "state change" and "value property change"
- * listeners.
- */
- @Override
- public void addStateChangeListener(StateChangeListener listener) {
- if (this.hasNoStateChangeListeners()) {
- this.engageValue();
- }
- super.addStateChangeListener(listener);
- }
-
- /**
- * Begin listening to the node's value's state. If the state of the node changes
- * in a way that should be reflected in the tree, fire a "state change" event.
- */
- protected abstract void engageValue();
-
- /**
- * @see #addStateChangeListener(StateChangeListener)
- */
- @Override
- public void removeStateChangeListener(StateChangeListener listener) {
- super.removeStateChangeListener(listener);
- if (this.hasNoStateChangeListeners()) {
- this.disengageValue();
- }
- }
-
- /**
- * Stop listening to the node's value.
- * @see #engageValue()
- */
- protected abstract void disengageValue();
-
-
- // ********** WritablePropertyValueModel implementation **********
-
- public void setValue(T value) {
- throw new UnsupportedOperationException();
- }
-
-
- // ********** TreeNodeValueModel implementation **********
-
- @SuppressWarnings("unchecked")
- public TreeNodeValueModel<T>[] path() {
- List<TreeNodeValueModel<T>> path = CollectionTools.reverseList(this.backPath());
- return path.toArray(new TreeNodeValueModel[path.size()]);
- }
-
- /**
- * Return an iterator that climbs up the node's path,
- * starting with, and including, the node
- * and up to, and including, the root node.
- */
- protected Iterator<TreeNodeValueModel<T>> backPath() {
- return new ChainIterator<TreeNodeValueModel<T>>(this) {
- @Override
- protected TreeNodeValueModel<T> nextLink(TreeNodeValueModel<T> currentLink) {
- return currentLink.parent();
- }
- };
- }
-
- public TreeNodeValueModel<T> child(int index) {
- return this.childrenModel().get(index);
- }
-
- public int childrenSize() {
- return this.childrenModel().size();
- }
-
- public int indexOfChild(TreeNodeValueModel<T> child) {
- ListValueModel<TreeNodeValueModel<T>> children = this.childrenModel();
- int size = children.size();
- for (int i = 0; i < size; i++) {
- if (children.get(i) == child) {
- return i;
- }
- }
- return -1;
- }
-
- public boolean isLeaf() {
- return this.childrenModel().size() == 0;
- }
-
-
- // ********** standard methods **********
-
- /**
- * We implement #equals(Object) so that TreePaths containing these nodes
- * will resolve properly when the nodes contain the same values. This is
- * necessary because nodes are dropped and rebuilt willy-nilly when dealing
- * with a sorted list of children; and this allows us to save and restore
- * a tree's expanded paths. The nodes in the expanded paths that are
- * saved before any modification (e.g. renaming a node) will be different
- * from the nodes in the tree's paths after the modification, if the modification
- * results in a possible change in the node sort order. ~bjv
- */
- @Override
- public boolean equals(Object o) {
- if (o == null) {
- return false;
- }
- if (o.getClass() != this.getClass()) {
- return false;
- }
- @SuppressWarnings("unchecked")
- AbstractTreeNodeValueModel<T> other = (AbstractTreeNodeValueModel<T>) o;
- return this.getValue().equals(other.getValue());
- }
-
- @Override
- public int hashCode() {
- return this.getValue().hashCode();
- }
-
- @Override
- public void toString(StringBuilder sb) {
- sb.append(this.getValue());
- }
-
-}

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