com.microsoft.azure.management.resources.fluentcore.dag

Class DAGNode<DataT,NodeT extends DAGNode<DataT,NodeT>>

java.lang.Object

com.microsoft.azure.management.resources.fluentcore.dag.Node<DataT,NodeT>

com.microsoft.azure.management.resources.fluentcore.dag.DAGNode<DataT,NodeT>

Type Parameters:

DataT - the type of the data stored in the node

NodeT - the type of the node

public class DAGNode<DataT,NodeT extends DAGNode<DataT,NodeT>>
extends Node<DataT,NodeT>

The type representing node in a DAGraph.

Constructor Summary

Constructors

Constructor and Description
DAGNode(String key, DataT data) Creates a DAG node.

Method Summary

Modifier and Type	Method and Description
void	addDependency(String dependencyKey) Mark the node identified by the given key as this node's dependency.
void	addDependent(String key) Mark the node identified by the given key as dependent of this node.
List<String>	dependencyKeys()
boolean	hasDependencies()
void	initialize() Initialize the node so that traversal can be performed on the parent DAG.
boolean	isPreparer()
ReentrantLock	lock()
protected void	onFaultedResolution(String dependencyKey, Throwable throwable) Reports a dependency of this node has been faulted.
protected void	onSuccessfulResolution(String dependencyKey) Reports a dependency of this node has been successfully resolved.
void	removeDependency(String dependencyKey) Remove the dependency node identified by the given key from the dependencies.
void	setPreparer(boolean isPreparer) Mark or un-mark this node as preparer.

Methods inherited from class com.microsoft.azure.management.resources.fluentcore.dag.Node

addChild, children, data, hasChildren, key, owner, removeChild, setOwner

Methods inherited from class java.lang.Object

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

Constructor Detail

DAGNode

public DAGNode(String key,
               DataT data)

Creates a DAG node.

Parameters:

key - unique id of the node

data - data to be stored in the node

Method Detail

lock

public ReentrantLock lock()

Returns:

the lock to be used while performing thread safe operation on this node.

addDependent

public void addDependent(String key)

Mark the node identified by the given key as dependent of this node.

Parameters:

key - the id of the dependent node

dependencyKeys

public List<String> dependencyKeys()

Returns:

a list of keys of nodes in DAGraph that this node depends on

addDependency

public void addDependency(String dependencyKey)

Mark the node identified by the given key as this node's dependency.

Parameters:

dependencyKey - the id of the dependency node

removeDependency

public void removeDependency(String dependencyKey)

Remove the dependency node identified by the given key from the dependencies.

Parameters:

dependencyKey - the id of the dependency node

hasDependencies

public boolean hasDependencies()

Returns:

true if this node has any dependency

setPreparer

public void setPreparer(boolean isPreparer)

Mark or un-mark this node as preparer.

Parameters:

isPreparer - true if this node needs to be marked as preparer, false otherwise.

isPreparer

public boolean isPreparer()

Returns:

true if this node is marked as preparer

initialize

public void initialize()

Initialize the node so that traversal can be performed on the parent DAG.

onSuccessfulResolution

protected void onSuccessfulResolution(String dependencyKey)

Reports a dependency of this node has been successfully resolved.

Parameters:

dependencyKey - the id of the dependency node

onFaultedResolution

protected void onFaultedResolution(String dependencyKey,
                                   Throwable throwable)

Reports a dependency of this node has been faulted.

Parameters:

dependencyKey - the id of the dependency node

throwable - the reason for unsuccessful resolution