org.gradle.api
Interface DomainObjectCollection<T>

Type Parameters:

T - The type of domain objects in this collection.

All Superinterfaces:

Collection<T>, Iterable<T>

All Known Subinterfaces:

ArtifactRepositoryContainer, CompilerRegistry, ConfigurationContainer, DependencySet, DomainObjectSet<T>, NamedDomainObjectCollection<T>, NamedDomainObjectContainer<T>, NamedDomainObjectList<T>, NamedDomainObjectSet<T>, PluginCollection<T>, PluginContainer, PublishArtifactSet, RepositoryHandler, SourceSetContainer, TaskCollection<T>, TaskContainer

public interface DomainObjectCollection<T>
extends Collection<T>

A DomainObjectCollection is a specialised Collection that adds the ability to modification notifications and live filtered sub collections.

The filtered collections returned by the filtering methods, such as matching(Closure), return collections that are live. That is, they reflect changes made to the source collection that they were created from. This is true for filtered collections made from filtered collections etc.

You can also add actions which are executed as elements are added to the collection. Actions added to filtered collections will be fired if an addition/removal occurs for the source collection that matches the filter.

getAll

@Deprecated
Set<T> getAll()

Deprecated. as DomainObjectCollection implementations are now Collection implementations.

Returns a snapshot of the objects in this collection (i.e. changes to this collection will not be reflected in the returned collection).

Returns:

The objects. Returns an empty set if this collection is empty.

findAll

@Deprecated
Set<T> findAll(Spec<? super T> spec)

Deprecated. Use matching(Spec) instead.

Returns a snapshot of the objects in this collection which meet the given specification.

Parameters:

spec - The specification to use.

Returns:

The matching objects. Returns an empty set if there are no such objects in this collection.

withType

<S extends T> DomainObjectCollection<S> withType(Class<S> type)

Returns a collection containing the objects in this collection of the given type. The returned collection is live, so that when matching objects are later added to this collection, they are also visible in the filtered collection.

Parameters:

type - The type of objects to find.

Returns:

The matching objects. Returns an empty collection if there are no such objects in this collection.

withType

<S extends T> DomainObjectCollection<S> withType(Class<S> type,
                                                 Action<? super S> configureAction)

Returns a collection containing the objects in this collection of the given type. Equivalent to calling withType(type).all(configureAction)

Parameters:

type - The type of objects to find.

configureAction - The action to execute for each object in the resulting collection.

Returns:

The matching objects. Returns an empty collection if there are no such objects in this collection.

withType

<S extends T> DomainObjectCollection<S> withType(Class<S> type,
                                                 Closure configureClosure)

Returns a collection containing the objects in this collection of the given type. Equivalent to calling withType(type).all(configureClosure).

Parameters:

type - The type of objects to find.

configureClosure - The closure to execute for each object in the resulting collection.

Returns:

The matching objects. Returns an empty collection if there are no such objects in this collection.

matching

DomainObjectCollection<T> matching(Spec<? super T> spec)

Returns a collection which contains the objects in this collection which meet the given specification. The returned collection is live, so that when matching objects are added to this collection, they are also visible in the filtered collection.

Parameters:

spec - The specification to use.

Returns:

The collection of matching objects. Returns an empty collection if there are no such objects in this collection.

matching

DomainObjectCollection<T> matching(Closure spec)

Returns a collection which contains the objects in this collection which meet the given closure specification. The returned collection is live, so that when matching objects are added to this collection, they are also visible in the filtered collection.

Parameters:

spec - The specification to use. The closure gets a collection element as an argument.

Returns:

The collection of matching objects. Returns an empty collection if there are no such objects in this collection.

whenObjectAdded

Action<? super T> whenObjectAdded(Action<? super T> action)

Adds an Action to be executed when an object is added to this collection.

Parameters:

action - The action to be executed

Returns:

the supplied action

whenObjectAdded

void whenObjectAdded(Closure action)

Adds a closure to be called when an object is added to this collection. The newly added object is passed to the closure as the parameter.

Parameters:

action - The closure to be called

whenObjectRemoved

Action<? super T> whenObjectRemoved(Action<? super T> action)

Adds an Action to be executed when an object is removed from this collection.

Parameters:

action - The action to be executed

Returns:

the supplied action

whenObjectRemoved

void whenObjectRemoved(Closure action)

Adds a closure to be called when an object is removed from this collection. The removed object is passed to the closure as the parameter.

Parameters:

action - The closure to be called

allObjects

@Deprecated
void allObjects(Action<? super T> action)

Deprecated. Use all(Action) instead.

Executes the given action against all objects in this collection, and any objects subsequently added to this collection.

Parameters:

action - The action to be executed

allObjects

@Deprecated
void allObjects(Closure action)

Deprecated. Use all(groovy.lang.Closure) instead.

Executes the given closure against all objects in this collection, and any objects subsequently added to this collection.

Parameters:

action - The closure to be called

all

void all(Action<? super T> action)

Executes the given action against all objects in this collection, and any objects subsequently added to this collection.

Parameters:

action - The action to be executed

all

void all(Closure action)

Executes the given closure against all objects in this collection, and any objects subsequently added to this collection. The object is passed to the closure as the closure delegate. Alternatively, it is also passed as a parameter.

Parameters:

action - The action to be executed

findAll

Collection<T> findAll(Closure spec)

Returns a collection which contains the objects in this collection which meet the given closure specification.

Parameters:

spec - The specification to use. The closure gets a collection element as an argument.

Returns:

The collection of matching objects. Returns an empty collection if there are no such objects in this collection.