jenkins.model

Class Nodes

java.lang.Object

jenkins.model.Nodes

All Implemented Interfaces:

Saveable

@Restricted(value=org.kohsuke.accmod.restrictions.NoExternalUse.class)
public class Nodes
extends Object
implements Saveable

Manages all the nodes for Jenkins.

Since:

1.607

Field Summary

Fields inherited from interface hudson.model.Saveable

NOOP

Method Summary

Modifier and Type	Method and Description
void	addNode(Node node) Adds a node.
Node	getNode(String name) Returns the named node.
List<Node>	getNodes() Returns the list of nodes.
boolean	isLegacy() Returns true if and only if the list of nodes is stored in the legacy location.
void	load() Loads the nodes from disk.
void	removeNode(Node node) Removes a node.
boolean	replaceNode(Node oldOne, Node newOne) Replace node of given name.
void	save() Persists the state of this object into XML.
void	setNodes(Collection<? extends Node> nodes) Sets the list of nodes.
boolean	updateNode(Node node) Updates an existing node on disk.

Methods inherited from class java.lang.Object

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

Method Detail

getNodes

@Nonnull
public List<Node> getNodes()

Returns the list of nodes.

Returns:

the list of nodes.

setNodes

public void setNodes(@Nonnull
                     Collection<? extends Node> nodes)
              throws IOException

Sets the list of nodes.

Parameters:

nodes - the new list of nodes.

Throws:

IOException - if the new list of nodes could not be persisted.

addNode

public void addNode(@Nonnull
                    Node node)
             throws IOException

Adds a node. If a node of the same name already exists then that node will be replaced.

Parameters:

node - the new node.

Throws:

IOException - if the list of nodes could not be persisted.

updateNode

public boolean updateNode(@Nonnull
                          Node node)
                   throws IOException

Updates an existing node on disk. If the node instance is not in the list of nodes, then this will be a no-op, even if there is another instance with the same Node.getNodeName().

Parameters:

node - the node to be updated.

Returns:

true, if the node was updated. false, if the node was not in the list of nodes.

Throws:

IOException - if the node could not be persisted.

Since:

1.634

replaceNode

public boolean replaceNode(Node oldOne,
                           @Nonnull
                           Node newOne)
                    throws IOException

Replace node of given name.

Returns:

true if node was replaced.

Throws:

IOException

Since:

2.8

removeNode

public void removeNode(@Nonnull
                       Node node)
                throws IOException

Removes a node. If the node instance is not in the list of nodes, then this will be a no-op, even if there is another instance with the same Node.getNodeName().

Parameters:

node - the node instance to remove.

Throws:

IOException - if the list of nodes could not be persisted.

save

public void save()
          throws IOException

Persists the state of this object into XML.

For making a bulk change efficiently, see BulkChange.

To support listeners monitoring changes to this object, call SaveableListener.fireOnChange(hudson.model.Saveable, hudson.XmlFile)

Specified by:

save in interface Saveable

Throws:

IOException - if the persistence failed.

getNode

@CheckForNull
public Node getNode(String name)

Returns the named node.

Parameters:

name - the Node.getNodeName() of the node to retrieve.

Returns:

the Node or null if the node could not be found.

load

public void load()
          throws IOException

Loads the nodes from disk.

Throws:

IOException - if the nodes could not be deserialized.

isLegacy

public boolean isLegacy()

Returns true if and only if the list of nodes is stored in the legacy location.

Returns:

true if and only if the list of nodes is stored in the legacy location.