Tree (Java SE 9 & JDK 9 )

All Known Subinterfaces:

AnnotatedTypeTree, AnnotationTree, ArrayAccessTree, ArrayTypeTree, AssertTree, AssignmentTree, BinaryTree, BlockTree, BreakTree, CaseTree, CatchTree, ClassTree, CompilationUnitTree, CompoundAssignmentTree, ConditionalExpressionTree, ContinueTree, DirectiveTree, DoWhileLoopTree, EmptyStatementTree, EnhancedForLoopTree, ErroneousTree, ExportsTree, ExpressionStatementTree, ExpressionTree, ForLoopTree, IdentifierTree, IfTree, ImportTree, InstanceOfTree, IntersectionTypeTree, LabeledStatementTree, LambdaExpressionTree, LiteralTree, MemberReferenceTree, MemberSelectTree, MethodInvocationTree, MethodTree, ModifiersTree, ModuleTree, NewArrayTree, NewClassTree, OpensTree, PackageTree, ParameterizedTypeTree, ParenthesizedTree, PrimitiveTypeTree, ProvidesTree, RequiresTree, ReturnTree, StatementTree, SwitchTree, SynchronizedTree, ThrowTree, TryTree, TypeCastTree, TypeParameterTree, UnaryTree, UnionTypeTree, UsesTree, VariableTree, WhileLoopTree, WildcardTree
```
public interface Tree
```
Common interface for all nodes in an abstract syntax tree.
WARNING: This interface and its sub-interfaces are subject to change as the Java™ programming language evolves. These interfaces are implemented by the JDK Java compiler (javac) and should not be implemented either directly or indirectly by other applications.

Since:

1.6

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class Tree.Kind
Enumerates all kinds of trees.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<R,D> R`	`accept(TreeVisitor<R,D> visitor, D data)`	Accept method used to implement the visitor pattern.
`Tree.Kind`	`getKind()`	Returns the kind of this tree.

- Method Detail
  - getKind
```
Tree.Kind getKind()
```
    Returns the kind of this tree.
    
    Returns:
    
    the kind of this tree.
  - accept
```
<R,D> R accept(TreeVisitor<R,D> visitor,
               D data)
```
    Accept method used to implement the visitor pattern. The visitor pattern is used to implement operations on trees.
    
    Type Parameters:
    
    R - result type of this operation.
    
    D - type of additional data.
    
    Parameters:
    
    visitor - the visitor to be called
    
    data - a value to be passed to the visitor
    
    Returns:
    
    the result returned from calling the visitor