org.apache.jackrabbit.vault.packaging

Class DependencyUtil

java.lang.Object

org.apache.jackrabbit.vault.packaging.DependencyUtil

public class DependencyUtil
extends java.lang.Object

Dependency Utilities

Constructor Summary

Constructors

Constructor and Description
DependencyUtil()

Method Summary

Modifier and Type	Method and Description
static Dependency[]	add(Dependency[] deps, Dependency dep) Adds an dependency to the give package if it is not already contained in the given list.
static Dependency[]	addExact(Dependency[] deps, PackageId id) Adds an exact dependency to the give package if it is not already contained in the given list.
static boolean	matches(Dependency[] deps, PackageId id) Checks if any of the dependencies matches the given id
static java.util.List<PackageId>	resolve(java.util.Map<PackageId,Dependency[]> list) Resolves a list of resolutions respecting their internal dependency references.
static <T extends VaultPackage> void	sort(java.util.Collection<T> packages) Sorts the packages by the dependency order
static <T extends JcrPackage> void	sortPackages(java.util.Collection<T> packages) Sorts the packages by the dependency order

Methods inherited from class java.lang.Object

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

Constructor Detail

DependencyUtil

public DependencyUtil()

Method Detail

sort

public static <T extends VaultPackage> void sort(java.util.Collection<T> packages)
                                          throws CyclicDependencyException

Sorts the packages by the dependency order

Type Parameters:

T - Type of the collection.

Parameters:

packages - packages to sort

Throws:

CyclicDependencyException - if a cyclic dependency is detected

sortPackages

public static <T extends JcrPackage> void sortPackages(java.util.Collection<T> packages)
                                                throws CyclicDependencyException,
                                                       RepositoryException

Sorts the packages by the dependency order

Type Parameters:

T - Type of the collection.

Parameters:

packages - packages to sort

Throws:

CyclicDependencyException - if a cyclic dependency is detected

javax.jcr.RepositoryException - if an repository error occurs

RepositoryException

resolve

public static java.util.List<PackageId> resolve(java.util.Map<PackageId,Dependency[]> list)
                                         throws CyclicDependencyException

Resolves a list of resolutions respecting their internal dependency references.

Parameters:

list - list of resolutions

Returns:

a new list of resolutions

Throws:

CyclicDependencyException - if a cyclic dependency is detected

matches

public static boolean matches(Dependency[] deps,
                              PackageId id)

Checks if any of the dependencies matches the given id

Parameters:

deps - the list of dependencies

id - the id

Returns:

true if matches

addExact

public static Dependency[] addExact(Dependency[] deps,
                                    PackageId id)

Adds an exact dependency to the give package if it is not already contained in the given list.

Parameters:

deps - the original dependencies

id - the id to add

Returns:

the new array of dependencies, or deps if nothing changed.

add

public static Dependency[] add(Dependency[] deps,
                               Dependency dep)

Adds an dependency to the give package if it is not already contained in the given list. version ranges are current ignored.

Parameters:

deps - the original dependencies

dep - the dependency to add

Returns:

the new array of dependencies, or deps if nothing changed.