Package org.eclipse.aether.internal.impl.collect

Class DefaultDependencyCollector

java.lang.Object

org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector

All Implemented Interfaces:

DependencyCollector

@Singleton
@Named
public class DefaultDependencyCollector
extends Object
implements DependencyCollector

Default implementation of DependencyCollector that merely indirect to selected delegate.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CONFIG_PROP_COLLECTOR_IMPL	The name of the dependency collector implementation to use: depth-first (original) named "df", and breadth-first (new in 1.8.0) named "bf".
static final String	CONFIG_PROPS_PREFIX
static final String	DEFAULT_COLLECTOR_IMPL

Constructor Summary

Constructors

Constructor	Description
DefaultDependencyCollector(Map<String,DependencyCollectorDelegate> delegates)

Method Summary

Modifier and Type	Method	Description
CollectResult	collectDependencies(RepositorySystemSession session, CollectRequest request)	Collects the transitive dependencies of some artifacts and builds a dependency graph.

Methods inherited from class java.lang.Object

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

Field Details

CONFIG_PROPS_PREFIX

public static final String CONFIG_PROPS_PREFIX

See Also:

• Constant Field Values

CONFIG_PROP_COLLECTOR_IMPL

public static final String CONFIG_PROP_COLLECTOR_IMPL

The name of the dependency collector implementation to use: depth-first (original) named "df", and breadth-first (new in 1.8.0) named "bf". Both collectors produce equivalent results, but they may differ performance wise, depending on project being applied to. Our experience shows that existing "df" is well suited for smaller to medium size projects, while "bf" may perform better on huge projects with many dependencies. Experiment (and come back to us!) to figure out which one suits you the better.

Since:

1.8.0

See Also:

• Constant Field Values

Sourced from:

RepositorySystemSession.getConfigProperties()

Value type:

String

Default value:

DEFAULT_COLLECTOR_IMPL

DEFAULT_COLLECTOR_IMPL

public static final String DEFAULT_COLLECTOR_IMPL

See Also:

• Constant Field Values

Constructor Details

DefaultDependencyCollector

@Inject
public DefaultDependencyCollector(Map<String,DependencyCollectorDelegate> delegates)

Method Details

collectDependencies

public CollectResult collectDependencies(RepositorySystemSession session,
 CollectRequest request)
                                  throws DependencyCollectionException

Description copied from interface: DependencyCollector

Collects the transitive dependencies of some artifacts and builds a dependency graph. Note that this operation is only concerned about determining the coordinates of the transitive dependencies and does not actually resolve the artifact files. The supplied session carries various hooks to customize the dependency graph that must be invoked throughout the operation.

Specified by:

collectDependencies in interface DependencyCollector

Parameters:

session - The repository session, must not be null.

request - The collection request, must not be null.

Returns:

The collection result, never null.

Throws:

DependencyCollectionException - If the dependency tree could not be built.

See Also:

• RepositorySystemSession.getDependencyTraverser()
• RepositorySystemSession.getDependencyManager()
• RepositorySystemSession.getDependencySelector()
• RepositorySystemSession.getVersionFilter()
• RepositorySystemSession.getDependencyGraphTransformer()
• RepositorySystem.collectDependencies(RepositorySystemSession, CollectRequest)