com.github.javaparser

Interface HasParentNode<T>

All Superinterfaces:

Observable

All Known Implementing Classes:

AnnotationDeclaration, AnnotationExpr, AnnotationMemberDeclaration, ArrayAccessExpr, ArrayCreationExpr, ArrayCreationLevel, ArrayInitializerExpr, ArrayType, AssertStmt, AssignExpr, BinaryExpr, BlockComment, BlockStmt, BodyDeclaration, BooleanLiteralExpr, BreakStmt, CallableDeclaration, CastExpr, CatchClause, CharLiteralExpr, ClassExpr, ClassOrInterfaceDeclaration, ClassOrInterfaceType, Comment, CompilationUnit, ConditionalExpr, ConstructorDeclaration, ContinueStmt, DoStmt, DoubleLiteralExpr, EmptyStmt, EnclosedExpr, EnumConstantDeclaration, EnumDeclaration, ExplicitConstructorInvocationStmt, Expression, ExpressionStmt, FieldAccessExpr, FieldDeclaration, ForEachStmt, ForStmt, IfStmt, ImportDeclaration, InitializerDeclaration, InstanceOfExpr, IntegerLiteralExpr, IntersectionType, JavadocComment, LabeledStmt, LambdaExpr, LineComment, LiteralExpr, LiteralStringValueExpr, LocalClassDeclarationStmt, LongLiteralExpr, MarkerAnnotationExpr, MemberValuePair, MethodCallExpr, MethodDeclaration, MethodReferenceExpr, Modifier, ModuleDeclaration, ModuleDirective, ModuleExportsDirective, ModuleOpensDirective, ModuleProvidesDirective, ModuleRequiresDirective, ModuleUsesDirective, Name, NameExpr, Node, NodeList, NormalAnnotationExpr, NullLiteralExpr, ObjectCreationExpr, PackageDeclaration, Parameter, PrimitiveType, ReceiverParameter, ReferenceType, ReturnStmt, SimpleName, SingleMemberAnnotationExpr, Statement, StringLiteralExpr, SuperExpr, SwitchEntry, SwitchExpr, SwitchStmt, SynchronizedStmt, ThisExpr, ThrowStmt, TryStmt, Type, TypeDeclaration, TypeExpr, TypeParameter, UnaryExpr, UnionType, UnknownType, UnparsableStmt, VariableDeclarationExpr, VariableDeclarator, VarType, VoidType, WhileStmt, WildcardType

public interface HasParentNode<T>
extends Observable

An object that can have a parent node.

Method Summary

Modifier and Type	Method and Description
default <N> Optional<N>	findAncestor(Class<N> type) Walks the parents of this node and returns the first node of type type, or empty() if none is found.
default <N> Optional<N>	findAncestor(Class<N> type, Predicate<N> predicate) Walks the parents of this node and returns the first node of type type that matches predicate, or empty() if none is found.
Optional<Node>	getParentNode() Returns the parent node, or Optional.empty if no parent is set.
Node	getParentNodeForChildren() Returns the parent node from the perspective of the children of this node.
T	setParentNode(Node parentNode) Sets the parent node.

Methods inherited from interface com.github.javaparser.ast.observer.Observable

isRegistered, register, unregister

Method Detail

getParentNode

Optional<Node> getParentNode()

Returns the parent node, or Optional.empty if no parent is set.

setParentNode

T setParentNode(Node parentNode)

Sets the parent node.

Parameters:

parentNode - the parent node, or null to set no parent.

Returns:

return this

getParentNodeForChildren

Node getParentNodeForChildren()

Returns the parent node from the perspective of the children of this node.

That is, this method returns this for everything except NodeList. A NodeList returns its parent node instead. This is because a NodeList sets the parent of all its children to its own parent node (see NodeList for details).

findAncestor

default <N> Optional<N> findAncestor(Class<N> type)

Walks the parents of this node and returns the first node of type type, or empty() if none is found. The given type may also be an interface type, such as one of the NodeWith... interface types.

findAncestor

default <N> Optional<N> findAncestor(Class<N> type,
                                     Predicate<N> predicate)

Walks the parents of this node and returns the first node of type type that matches predicate, or empty() if none is found. The given type may also be an interface type, such as one of the NodeWith... interface types.