Package com.github.javaparser.ast.observer

Class PropagatingAstObserver

java.lang.Object

com.github.javaparser.ast.observer.PropagatingAstObserver

All Implemented Interfaces:

AstObserver

public abstract class PropagatingAstObserver
extends Object
implements AstObserver

This AstObserver attach itself to all new nodes added to the nodes already observed.

Nested Class Summary

Nested classes/interfaces inherited from interface com.github.javaparser.ast.observer.AstObserver

AstObserver.ListChangeType

Constructor Summary

Constructors

Constructor	Description
PropagatingAstObserver()

Method Summary

Modifier and Type	Method	Description
void	concreteListChange(NodeList<?> observedNode, AstObserver.ListChangeType type, int index, Node nodeAddedOrRemoved)
void	concreteListReplacement(NodeList<?> observedNode, int index, Node oldValue, Node newValue)
void	concretePropertyChange(Node observedNode, ObservableProperty property, Object oldValue, Object newValue)
void	listChange(NodeList<?> observedNode, AstObserver.ListChangeType type, int index, Node nodeAddedOrRemoved)	A list is changed
void	listReplacement(NodeList<?> observedNode, int index, Node oldNode, Node newNode)
void	parentChange(Node observedNode, Node previousParent, Node newParent)	The parent of a node is changed
void	propertyChange(Node observedNode, ObservableProperty property, Object oldValue, Object newValue)	The value of a property is changed
static PropagatingAstObserver	transformInPropagatingObserver(AstObserver observer)	Wrap a given observer to make it self-propagating.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PropagatingAstObserver

public PropagatingAstObserver()

Method Detail

transformInPropagatingObserver

public static PropagatingAstObserver transformInPropagatingObserver(AstObserver observer)

Wrap a given observer to make it self-propagating. If the given observer is an instance of PropagatingAstObserver the observer is returned without changes.

propertyChange

public final void propertyChange(Node observedNode,
                                 ObservableProperty property,
                                 Object oldValue,
                                 Object newValue)

Description copied from interface: AstObserver

The value of a property is changed

Specified by:

propertyChange in interface AstObserver

Parameters:

observedNode - owner of the property

property - property changed

oldValue - value of the property before the change

newValue - value of the property after the change

listChange

public final void listChange(NodeList<?> observedNode,
                             AstObserver.ListChangeType type,
                             int index,
                             Node nodeAddedOrRemoved)

Description copied from interface: AstObserver

A list is changed

Specified by:

listChange in interface AstObserver

Parameters:

observedNode - list changed

type - type of change

index - position at which the changed occurred

nodeAddedOrRemoved - element added or removed

listReplacement

public void listReplacement(NodeList<?> observedNode,
                            int index,
                            Node oldNode,
                            Node newNode)

Specified by:

listReplacement in interface AstObserver

concretePropertyChange

public void concretePropertyChange(Node observedNode,
                                   ObservableProperty property,
                                   Object oldValue,
                                   Object newValue)

concreteListChange

public void concreteListChange(NodeList<?> observedNode,
                               AstObserver.ListChangeType type,
                               int index,
                               Node nodeAddedOrRemoved)

concreteListReplacement

public void concreteListReplacement(NodeList<?> observedNode,
                                    int index,
                                    Node oldValue,
                                    Node newValue)

parentChange

public void parentChange(Node observedNode,
                         Node previousParent,
                         Node newParent)

Description copied from interface: AstObserver

The parent of a node is changed

Specified by:

parentChange in interface AstObserver

Parameters:

observedNode - node of which the parent is changed

previousParent - previous parent

newParent - new parent