AbstractReturningNodeVisitor (Closure Templates)

java.lang.Object
- com.google.template.soy.basetree.AbstractReturningNodeVisitor<N,R>

Type Parameters:
N - A more specific subinterface of Node, or just Node if not applicable.
R - The return type of this visitor.

All Implemented Interfaces:

NodeVisitor<N,R>

Direct Known Subclasses:

AbstractReturningExprNodeVisitor, AbstractReturningSoyNodeVisitor
```
public abstract class AbstractReturningNodeVisitor<N extends Node,R>
extends Object
implements NodeVisitor<N,R>
```
Base class for AbstractXxxNodeVisitor classes.
Same as AbstractNodeVisitor except that in this class, internal visit() calls return a value.
Important: Do not use outside of Soy code (treat as superpackage-private).

See Also:
AbstractNodeVisitor

Constructor Summary

Constructors
Constructor and Description

AbstractReturningNodeVisitor()

Constructors
Constructor and Description
`AbstractReturningNodeVisitor()`

Method Summary

Methods
Modifier and Type	Method and Description
`R`	`exec(N node)` Executes the function defined by this visitor.
`protected abstract R`	`visit(N node)` Visits the given node to execute the function defined by this visitor.
`protected List<R>`	`visitChildren(ParentNode<? extends N> node)` Helper to visit all the children of a node, in order.
`protected List<R>`	`visitChildrenAllowingConcurrentModification(ParentNode<? extends N> node)` Helper to visit all the children of a node, in order.

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

- Constructor Detail
  - AbstractReturningNodeVisitor
```
public AbstractReturningNodeVisitor()
```
- Method Detail
  - exec
```
public R exec(N node)
```
    Description copied from interface: NodeVisitor
    
    Executes the function defined by this visitor.
    
    Specified by:
    
    exec in interface NodeVisitor<N extends Node,R>
    
    Parameters:
    node - The node to execute the function on.
  - visit
```
protected abstract R visit(N node)
```
    Visits the given node to execute the function defined by this visitor.
    
    Parameters:
    node - The node to visit.
  - visitChildren
```
protected List<R> visitChildren(ParentNode<? extends N> node)
```
    Helper to visit all the children of a node, in order.
    
    Parameters:
    node - The parent node whose children to visit.
    
    Returns:
    The list of return values from visiting the children.
    See Also:
    visitChildrenAllowingConcurrentModification(com.google.template.soy.basetree.ParentNode<? extends N>)
  - visitChildrenAllowingConcurrentModification
```
protected List<R> visitChildrenAllowingConcurrentModification(ParentNode<? extends N> node)
```
    Helper to visit all the children of a node, in order. This method differs from visitChildren in that we are iterating through a copy of the children. Thus, concurrent modification of the list of children is allowed.
    
    Parameters:
    node - The parent node whose children to visit.
    
    Returns:
    The list of return values from visiting the children.
    See Also:
    visitChildren(com.google.template.soy.basetree.ParentNode<? extends N>)

Class AbstractReturningNodeVisitor<N extends Node,R>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractReturningNodeVisitor

Method Detail

exec

visit

visitChildren

visitChildrenAllowingConcurrentModification