Package org.eclipse.aether.util.graph.transformer

Class ChainedDependencyGraphTransformer

java.lang.Object

org.eclipse.aether.util.graph.transformer.ChainedDependencyGraphTransformer

All Implemented Interfaces:

DependencyGraphTransformer

public final class ChainedDependencyGraphTransformer
extends Object
implements DependencyGraphTransformer

A dependency graph transformer that chains other transformers.

Constructor Summary

Constructors

Constructor	Description
ChainedDependencyGraphTransformer(DependencyGraphTransformer... transformers)	Creates a new transformer that chains the specified transformers.

Method Summary

Modifier and Type	Method	Description
static DependencyGraphTransformer	newInstance(DependencyGraphTransformer transformer1, DependencyGraphTransformer transformer2)	Creates a new transformer that chains the specified transformers or simply returns one of them if the other one is null.
DependencyNode	transformGraph(DependencyNode node, DependencyGraphTransformationContext context)	Transforms the dependency graph denoted by the specified root node.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChainedDependencyGraphTransformer

public ChainedDependencyGraphTransformer(DependencyGraphTransformer... transformers)

Creates a new transformer that chains the specified transformers.

Parameters:

transformers - The transformers to chain, may be null or empty.

Method Detail

newInstance

public static DependencyGraphTransformer newInstance(DependencyGraphTransformer transformer1,
                                                     DependencyGraphTransformer transformer2)

Creates a new transformer that chains the specified transformers or simply returns one of them if the other one is null.

Parameters:

transformer1 - The first transformer of the chain, may be null.

transformer2 - The second transformer of the chain, may be null.

Returns:

The chained transformer or null if both input transformers are null.

transformGraph

public DependencyNode transformGraph(DependencyNode node,
                                     DependencyGraphTransformationContext context)
                              throws RepositoryException

Description copied from interface: DependencyGraphTransformer

Transforms the dependency graph denoted by the specified root node. The transformer may directly change the provided input graph or create a new graph, the former is recommended for performance reasons.

Specified by:

transformGraph in interface DependencyGraphTransformer

Parameters:

node - The root node of the (possibly cyclic!) graph to transform, must not be null.

context - The graph transformation context, must not be null.

Returns:

The result graph of the transformation, never null.

Throws:

RepositoryException - If the transformation failed.