org.apache.reef.tang.util.walk

Class AbstractClassHierarchyNodeVisitor

java.lang.Object

org.apache.reef.tang.util.walk.AbstractClassHierarchyNodeVisitor

All Implemented Interfaces:

NodeVisitor<Node>

Direct Known Subclasses:

GraphvizConfigVisitor

public abstract class AbstractClassHierarchyNodeVisitor
extends Object
implements NodeVisitor<Node>

Generic interface to traverse nodes of the class hierarchy. Dispatches between ClassNode, PackageNode, and NamedParameterNode types. It is used e.g. in Walk.preorder()

Constructor Summary

Constructors

Constructor and Description
AbstractClassHierarchyNodeVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	visit(ClassNode<?> node) Process current configuration node of ClassNode type.
abstract boolean	visit(NamedParameterNode<?> node) Process current configuration node of NamedParameterNode type.
boolean	visit(Node node) Manually dispatch between different types of Nodes and call a proper visit() method.
abstract boolean	visit(PackageNode node) Process current configuration node of PackageNode type.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractClassHierarchyNodeVisitor

public AbstractClassHierarchyNodeVisitor()

Method Detail

visit

public boolean visit(Node node)

Manually dispatch between different types of Nodes and call a proper visit() method. Currently dispatches between ClassNode, PackageNode, and NamedParameterNode types.

Specified by:

visit in interface NodeVisitor<Node>

Parameters:

node - TANG configuration node.

Returns:

true to proceed with the next node, false to cancel.

Throws:

ClassCastException - if Node is not one of ClassNode, PackageNode, or NamedParameterNode.

visit

public abstract boolean visit(ClassNode<?> node)

Process current configuration node of ClassNode type.

Parameters:

node - Current configuration node.

Returns:

true to proceed with the next node, false to cancel.

visit

public abstract boolean visit(PackageNode node)

Process current configuration node of PackageNode type.

Parameters:

node - Current configuration node.

Returns:

true to proceed with the next node, false to cancel.

visit

public abstract boolean visit(NamedParameterNode<?> node)

Process current configuration node of NamedParameterNode type.

Parameters:

node - Current configuration node.

Returns:

true to proceed with the next node, false to cancel.