Defines grid projection which represents a common functionality over a group of nodes. Grid projection allows to group Ignite nodes into various subgroups to perform distributed operations on them. All ForXXX(...)' methods will create a child grid projection from existing projection. If you create a new projection from current one, then the resulting projection will include a subset of nodes from current projection. The following code snippet shows how to create grid projections: More...

Inheritance diagram for Apache.Ignite.Core.Cluster.IClusterGroup:

Public Member Functions
ICompute	GetCompute ()
	Gets compute functionality over this grid projection. All operations on the returned ICompute instance will only include nodes from this projection. More...

IClusterGroup	ForNodes (IEnumerable< IClusterNode > nodes)
	Creates a grid projection over a given set of nodes. More...

IClusterGroup	ForNodes (params IClusterNode[] nodes)
	Creates a grid projection over a given set of nodes. More...

IClusterGroup	ForNodeIds (IEnumerable< Guid > ids)
	Creates a grid projection over a given set of node IDs. More...

IClusterGroup	ForNodeIds (params Guid[] ids)
	Creates a grid projection over a given set of node IDs. More...

IClusterGroup	ForPredicate (Func< IClusterNode, bool > p)
	Creates a grid projection which includes all nodes that pass the given predicate filter. More...

IClusterGroup	ForAttribute (string name, string val)
	Creates projection for nodes containing given name and value specified in user attributes. More...

IClusterGroup	ForCacheNodes (string name)
	Creates projection for all nodes that have cache with specified name running. More...

IClusterGroup	ForDataNodes (string name)
	Creates projection for all nodes that have cache with specified name running and cache distribution mode is PARTITIONED_ONLY or NEAR_PARTITIONED. More...

IClusterGroup	ForClientNodes (string name)
	Creates projection for all nodes that have cache with specified name running and cache distribution mode is CLIENT_ONLY or NEAR_ONLY. More...

IClusterGroup	ForRemotes ()
	Gets grid projection consisting from the nodes in this projection excluding the local node. More...

IClusterGroup	ForDaemons ()
	Gets a cluster group consisting of the daemon nodes. More...

IClusterGroup	ForHost (IClusterNode node)
	Gets grid projection consisting from the nodes in this projection residing on the same host as given node. More...

IClusterGroup	ForRandom ()
	Creates grid projection with one random node from current projection. More...

IClusterGroup	ForOldest ()
	Creates grid projection with one oldest node in the current projection. The resulting projection is dynamic and will always pick the next oldest node if the previous one leaves topology even after the projection has been created. More...

IClusterGroup	ForYoungest ()
	Creates grid projection with one youngest node in the current projection. The resulting projection is dynamic and will always pick the newest node in the topology, even if more nodes entered after the projection has been created. More...

IClusterGroup	ForDotNet ()
	Creates grid projection for nodes supporting .Net, i.e. for nodes started with Apache.Ignite.exe. More...

IClusterGroup	ForServers ()
	Creates a cluster group of nodes started in server mode (IgniteConfiguration.ClientMode). More...

ICollection< IClusterNode >	GetNodes ()
	Gets read-only collections of nodes in this projection. More...

IClusterNode	GetNode (Guid id)
	Gets a node for given ID from this grid projection. More...

IClusterNode	GetNode ()
	Gets first node from the list of nodes in this projection. More...

IClusterMetrics	GetMetrics ()
	Gets a metrics snapshot for this projection More...

IMessaging	GetMessaging ()
	Gets messaging facade over nodes within this cluster group. All operations on the returned IMessaging> instance will only include nodes from current cluster group. More...

IEvents	GetEvents ()
	Gets events facade over nodes within this cluster group. All operations on the returned IEvents> instance will only include nodes from current cluster group. More...

IServices	GetServices ()
	Gets services facade over nodes within this cluster group. All operations on the returned IServices> instance will only include nodes from current cluster group. More...

Properties
IIgnite	Ignite `[get]`
	Instance of Ignite. More...

Detailed Description

var g = Ignition.GetIgnite();

// Projection over remote nodes. var remoteNodes = g.ForRemotes();

// Projection over random remote node. var randomNode = g.ForRandom();

// Projection over all nodes with cache named "myCache" enabled. var cacheNodes = g.ForCacheNodes("myCache");

// Projection over all nodes that have user attribute "group" set to value "worker". var workerNodes = g.ForAttribute("group", "worker"); Grid projection provides functionality for executing tasks and closures over nodes in this projection using GetCompute.

All members are thread-safe and may be used concurrently from multiple threads.

Member Function Documentation

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForAttribute	(	string	name,
		string	val
	)

Parameters

name	Name of the attribute.
val	Optional attribute value to match.

Returns: Grid projection for nodes containing specified attribute.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForCacheNodes ( string name )

Parameters

name	Cache name to include into projection.

Returns: Projection over nodes that have specified cache running.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForClientNodes ( string name )

Parameters

name	Cache name to include into projection.

Returns: Projection over nodes that have specified cache running.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForDaemons ( )

Daemon nodes are the usual grid nodes that participate in topology but not visible on the main APIs, i.e. they are not part of any cluster group. The only way to see daemon nodes is to use this method.

Daemon nodes are used primarily for management and monitoring functionality that is build on Ignite and needs to participate in the topology, but also needs to be excluded from the "normal" topology, so that it won't participate in the task execution or in-memory data grid storage.

Returns: Cluster group consisting of the daemon nodes.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForDataNodes ( string name )

Parameters

name	Cache name to include into projection.

Returns: Projection over nodes that have specified cache running.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForDotNet ( )

Returns: Grid projection for nodes supporting .Net.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForHost ( IClusterNode node )

Parameters

node	Node residing on the host for which projection is created.

Returns: Projection for nodes residing on the same host as passed in node.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForNodeIds ( IEnumerable< Guid > ids )

Parameters

ids	Collection of node IDs to create a projection from.

Returns: Projection over provided Ignite node IDs.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForNodeIds ( params Guid[] ids )

Parameters

ids	Collection of node IDs to create a projection from.

Returns: Projection over provided Ignite node IDs.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForNodes ( IEnumerable< IClusterNode > nodes )

Parameters

nodes Collection of nodes to create a projection from.

Returns: Projection over provided Ignite nodes.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForNodes ( params IClusterNode[] nodes )

Parameters

nodes Collection of nodes to create a projection from.

Returns: Projection over provided Ignite nodes.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForOldest ( )

Returns: Grid projection with one oldest node from the current projection.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForPredicate ( Func< IClusterNode, bool > p )

Parameters

p	Predicate filter for nodes to include into this projection.

Returns: Grid projection for nodes that passed the predicate filter.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForRandom ( )

Returns: Grid projection with one random node from current projection.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForRemotes ( )

Returns: Grid projection consisting from the nodes in this projection excluding the local node.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForServers ( )

Returns: Cluster group of nodes started in server mode.

IClusterGroup Apache.Ignite.Core.Cluster.IClusterGroup.ForYoungest ( )

Returns: Grid projection with one youngest node from the current projection.

ICompute Apache.Ignite.Core.Cluster.IClusterGroup.GetCompute ( )

Returns: Compute instance over this grid projection.

IEvents Apache.Ignite.Core.Cluster.IClusterGroup.GetEvents ( )

Returns: Events instance over this cluster group.

IMessaging Apache.Ignite.Core.Cluster.IClusterGroup.GetMessaging ( )

Returns: Messaging instance over this cluster group.

IClusterMetrics Apache.Ignite.Core.Cluster.IClusterGroup.GetMetrics ( )

Returns: Grid projection metrics snapshot.

IClusterNode Apache.Ignite.Core.Cluster.IClusterGroup.GetNode ( Guid id )

Parameters

id Node ID.

Returns: Node with given ID from this projection or null if such node does not exist in this projection.

IClusterNode Apache.Ignite.Core.Cluster.IClusterGroup.GetNode ( )

Returns: Node.

ICollection<IClusterNode> Apache.Ignite.Core.Cluster.IClusterGroup.GetNodes ( )

Returns: All nodes in this projection.

IServices Apache.Ignite.Core.Cluster.IClusterGroup.GetServices ( )

Returns: Services instance over this cluster group.

Property Documentation

IIgnite Apache.Ignite.Core.Cluster.IClusterGroup.Ignite

get

Public Member Functions

Properties

Detailed Description

Member Function Documentation

Property Documentation