ProjectViewPsiTreeChangeListener (Unofficial IntelliJ Community Edition API docs)

java.lang.Object
- com.intellij.psi.PsiTreeChangeAdapter
- - com.intellij.ide.projectView.ProjectViewPsiTreeChangeListener

All Implemented Interfaces:

PsiTreeChangeListener, java.util.EventListener

Direct Known Subclasses:

ProjectTreeBuilder.ProjectTreeBuilderPsiListener
```
public abstract class ProjectViewPsiTreeChangeListener
extends PsiTreeChangeAdapter
```

Constructor Summary

Constructors
Modifier Constructor and Description

protected ProjectViewPsiTreeChangeListener(Project project)

Constructors
Modifier	Constructor and Description
`protected`	`ProjectViewPsiTreeChangeListener(Project project)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected boolean`	`addSubtreeToUpdateByElement(PsiElement element)`
`protected void`	`addSubtreeToUpdateByRoot()`
`void`	`childAdded(PsiTreeChangeEvent event)` Invoked just after adding of a new child to the tree. The added child is returned by `event.getChild()`. Parent element is returned by `event.getParent()`.
`void`	`childMoved(PsiTreeChangeEvent event)` Invoked just after movement of a child in the tree by changing its parent or by changing its position in the same parent. The moved child is returned by `event.getChild()`. The old parent is returned by `event.getOldParent()`. The new parent is returned by `event.getNewParent()`.
`void`	`childRemoved(PsiTreeChangeEvent event)` Invoked just after removal of a child from the tree. The removed child is returned by `event.getChild()`.
`protected void`	`childrenChanged(PsiElement parent, boolean stopProcessingForThisModificationCount)`
`void`	`childrenChanged(PsiTreeChangeEvent event)` Invoked after a mass change of children of the specified node. The parent the nodes of which have changed is returned by `event.getParent()`.
`void`	`childReplaced(PsiTreeChangeEvent event)` Invoked just after replacement of a child in the tree by another element. The replaced child is returned by `event.getOldChild()`.
`protected abstract javax.swing.tree.DefaultMutableTreeNode`	`getRootNode()`
`protected abstract AbstractTreeUpdater`	`getUpdater()`
`protected abstract boolean`	`isFlattenPackages()`
`void`	`propertyChanged(PsiTreeChangeEvent event)` Invoked just after changing of some property of an element. Element, whose property has changed is returned by `event.getElement()`. The property name is returned by `event.getPropertyName()`. The old property value is returned by `event.getOldValue()`. The new property value is returned by `event.getNewValue()`.

Methods inherited from class com.intellij.psi.PsiTreeChangeAdapter
beforeChildAddition, beforeChildMovement, beforeChildRemoval, beforeChildrenChange, beforeChildReplacement, beforePropertyChange

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ProjectViewPsiTreeChangeListener
```
protected ProjectViewPsiTreeChangeListener(Project project)
```
- Method Detail
  - getUpdater
```
protected abstract AbstractTreeUpdater getUpdater()
```
  - isFlattenPackages
```
protected abstract boolean isFlattenPackages()
```
  - getRootNode
```
protected abstract javax.swing.tree.DefaultMutableTreeNode getRootNode()
```
  - childRemoved
```
public final void childRemoved(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked just after removal of a child from the tree.
    The removed child is returned by event.getChild(). Note that only equals(), hashCode(), isValid() methods can be safely invoked for this element, because it's not valid anymore.
    Parent element is returned by event.getParent().
    
    Specified by:
    
    childRemoved in interface PsiTreeChangeListener
    
    Overrides:
    
    childRemoved in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - childAdded
```
public final void childAdded(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked just after adding of a new child to the tree.
    The added child is returned by event.getChild().
    Parent element is returned by event.getParent().
    
    Specified by:
    
    childAdded in interface PsiTreeChangeListener
    
    Overrides:
    
    childAdded in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - childReplaced
```
public final void childReplaced(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked just after replacement of a child in the tree by another element.
    The replaced child is returned by event.getOldChild(). Note that only equals(), hashCode(), isValid() methods can be safely invoked for this element, because it's not valid anymore.
    The new child is returned by event.getNewChild().
    Parent element is returned by event.getParent().
    
    Specified by:
    
    childReplaced in interface PsiTreeChangeListener
    
    Overrides:
    
    childReplaced in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - childMoved
```
public final void childMoved(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked just after movement of a child in the tree by changing its parent or by changing its position in the same parent.
    The moved child is returned by event.getChild().
    The old parent is returned by event.getOldParent().
    The new parent is returned by event.getNewParent().
    
    Specified by:
    
    childMoved in interface PsiTreeChangeListener
    
    Overrides:
    
    childMoved in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - childrenChanged
```
public final void childrenChanged(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked after a mass change of children of the specified node.
    The parent the nodes of which have changed is returned by event.getParent().
    
    Specified by:
    
    childrenChanged in interface PsiTreeChangeListener
    
    Overrides:
    
    childrenChanged in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - childrenChanged
```
protected void childrenChanged(PsiElement parent,
                               boolean stopProcessingForThisModificationCount)
```
  - propertyChanged
```
public void propertyChanged(PsiTreeChangeEvent event)
```
    Description copied from interface: PsiTreeChangeListener
    
    Invoked just after changing of some property of an element.
    Element, whose property has changed is returned by event.getElement().
    The property name is returned by event.getPropertyName().
    The old property value is returned by event.getOldValue().
    The new property value is returned by event.getNewValue().
    
    Specified by:
    
    propertyChanged in interface PsiTreeChangeListener
    
    Overrides:
    
    propertyChanged in class PsiTreeChangeAdapter
    
    Parameters:
    
    event - the event object describing the change.
  - addSubtreeToUpdateByRoot
```
protected void addSubtreeToUpdateByRoot()
```
  - addSubtreeToUpdateByElement
```
protected boolean addSubtreeToUpdateByElement(PsiElement element)
```

Class ProjectViewPsiTreeChangeListener

Constructor Summary

Method Summary

Methods inherited from class com.intellij.psi.PsiTreeChangeAdapter

Methods inherited from class java.lang.Object

Constructor Detail

ProjectViewPsiTreeChangeListener

Method Detail

getUpdater

isFlattenPackages

getRootNode

childRemoved

childAdded

childReplaced

childMoved

childrenChanged

childrenChanged

propertyChanged

addSubtreeToUpdateByRoot

addSubtreeToUpdateByElement