org.lenskit.inject

Class NodeInstantiator

java.lang.Object

org.lenskit.inject.NodeInstantiator

All Implemented Interfaces:

Function<DAGNode<Component,Dependency>,Object>

public abstract class NodeInstantiator
extends Object
implements Function<DAGNode<Component,Dependency>,Object>

Instantiate graph nodes.

Since:

2.1

Constructor Summary

Constructors

Constructor and Description
NodeInstantiator()

Method Summary

Modifier and Type	Method and Description
Object	apply(DAGNode<Component,Dependency> input)
static NodeInstantiator	create() Create a node instantiator without a lifecycle manager.
static NodeInstantiator	create(LifecycleManager mgr) Create a node instantiator with a lifecycle manager.
abstract Object	instantiate(DAGNode<Component,Dependency> node) Instantiate a particular node in the graph.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Function

equals

Constructor Detail

NodeInstantiator

public NodeInstantiator()

Method Detail

create

public static NodeInstantiator create()

Create a node instantiator without a lifecycle manager.

Returns:

A node instantiator that does not support lifecycle management.

create

public static NodeInstantiator create(@WillNotClose
                                      LifecycleManager mgr)

Create a node instantiator with a lifecycle manager.

Parameters:

mgr - The lifecycle manager to use.

Returns:

A node instantiator that will register components with a lifecycle manager.

instantiate

public abstract Object instantiate(DAGNode<Component,Dependency> node)
                            throws InjectionException

Instantiate a particular node in the graph.

Parameters:

node - The node to instantiate.

Returns:

The instantiation of the node.

Throws:

InjectionException

apply

@Nonnull
public Object apply(@Nullable
                              DAGNode<Component,Dependency> input)

Specified by:

apply in interface Function<DAGNode<Component,Dependency>,Object>