org.grouplens.lenskit.inject

Class NodeProcessors

java.lang.Object

org.grouplens.lenskit.inject.NodeProcessors

public class NodeProcessors
extends Object

Constructor Summary

Constructors

Constructor and Description
NodeProcessors()

Method Summary

Modifier and Type	Method and Description
static NodeProcessor	instantiate() Create a node processor that will instantiate nodes.
static NodeProcessor	instantiate(NodeInstantiator inst) Create a node processor that will instantiate nodes.
static DAGNode<Component,Dependency>	processNodes(DAGNode<Component,Dependency> graph, Collection<DAGNode<Component,Dependency>> toReplace, NodeProcessor proc) Process a set of nodes in a graph using a node processor.
static NodeProcessor	simulateInstantiation() Create a node processor that will simulate instantiating nodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeProcessors

public NodeProcessors()

Method Detail

instantiate

public static NodeProcessor instantiate()

Create a node processor that will instantiate nodes. It will return nodes whose satisfactions have been replaced with instance satisfactions containing the instance.

Returns:

The node processor.

instantiate

public static NodeProcessor instantiate(NodeInstantiator inst)

Create a node processor that will instantiate nodes. It will return nodes whose satisfactions have been replaced with instance satisfactions containing the instance.

Parameters:

inst - The node instantiator to use when instantiating nodes.

Returns:

The node processor.

simulateInstantiation

public static NodeProcessor simulateInstantiation()

Create a node processor that will simulate instantiating nodes.

Returns:

The node processor.

processNodes

public static DAGNode<Component,Dependency> processNodes(DAGNode<Component,Dependency> graph,
                                                         Collection<DAGNode<Component,Dependency>> toReplace,
                                                         NodeProcessor proc)
                                                  throws InjectionException

Process a set of nodes in a graph using a node processor. Each node is replaced by the result of processing it with a NodeProcessor. If a node changes because one of its adjacent nodes was replaced, the original is passed as the original parameter to NodeProcessor.processNode(DAGNode, DAGNode).

Parameters:

graph - The graph to process.

toReplace - The nodes in the graph to process.

proc - The processor to use.

Returns:

The processed graph.

Throws:

InjectionException