org.apache.reef.tang.util.walk

Class AbstractInjectionPlanNodeVisitor

java.lang.Object

org.apache.reef.tang.util.walk.AbstractInjectionPlanNodeVisitor

All Implemented Interfaces:

NodeVisitor<InjectionPlan<?>>

Direct Known Subclasses:

GraphvizInjectionPlanVisitor

public abstract class AbstractInjectionPlanNodeVisitor
extends Object
implements NodeVisitor<InjectionPlan<?>>

Generic interface to traverse nodes of the injection plan. Dispatches between Constructor, Subplan, RequiredSingleton, and JavaInstance types. It is used e.g. in Walk.preorder()

Constructor Summary

Constructors

Constructor and Description
AbstractInjectionPlanNodeVisitor()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	visit(Constructor<?> node) Process current injection plan node of Constructor type.
boolean	visit(InjectionPlan<?> node) Manually dispatch between different types of injection plan objects and call proper visit() method.
abstract boolean	visit(JavaInstance<?> node) Process current injection plan node of JavaInstance type.
abstract boolean	visit(Subplan<?> node) Process current injection plan node of Subplan type.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInjectionPlanNodeVisitor

public AbstractInjectionPlanNodeVisitor()

Method Detail

visit

public boolean visit(InjectionPlan<?> node)

Manually dispatch between different types of injection plan objects and call proper visit() method. Currently dispatches between Constructor, Subplan, RequiredSingleton, and JavaInstance types.

Specified by:

visit in interface NodeVisitor<InjectionPlan<?>>

Parameters:

node - TANG injection plan node.

Returns:

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

Throws:

ClassCastException - if argument is not one of Constructor, Subplan, RequiredSingleton, or JavaInstance.

visit

public abstract boolean visit(Constructor<?> node)

Process current injection plan node of Constructor type.

Parameters:

node - Current injection plan node.

Returns:

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

visit

public abstract boolean visit(JavaInstance<?> node)

Process current injection plan node of JavaInstance type.

Parameters:

node - Current injection plan node.

Returns:

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

visit

public abstract boolean visit(Subplan<?> node)

Process current injection plan node of Subplan type.

Parameters:

node - Current injection plan node.

Returns:

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