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org.gradle.api.tasks
Interface TaskCollection<T extends Task>

All Superinterfaces:
DomainObjectCollection<T>, Iterable<T>, NamedDomainObjectCollection<T>
All Known Subinterfaces:
TaskContainer
public interface TaskCollection<T extends Task>
extends NamedDomainObjectCollection<T>

A TaskCollection contains a set of Task instances, and provides a number of query methods.

Method Summary
 void allTasks(Action<? super T> action)
          Executes the given action against all tasks in this collection, and any tasks subsequently added to this collection.
 void allTasks(Closure closure)
          Executes the given closure against all tasks in this collection, and any tasks subsequently added to this collection.
 T getAt(String name)
          Locates an object by name, failing if there is no such task.
 T getByName(String name)
          Locates an object by name, failing if there is no such object.
 T getByName(String name, Closure configureClosure)
          Locates an object by name, failing if there is no such object.
 TaskCollection<T> matching(Closure closure)
          Returns a collection which contains the objects in this collection which meet the given closure specification.
 TaskCollection<T> matching(Spec<? super T> spec)
          Returns a collection which contains the objects in this collection which meet the given specification.
 Action<? super T> whenTaskAdded(Action<? super T> action)
          Adds an Action to be executed when a task is added to this collection.
 void whenTaskAdded(Closure closure)
          Adds a closure to be called when a task is added to this collection.
<S extends T>
TaskCollection<S>
withType(Class<S> type)
          Returns a collection containing the objects in this collection of the given type.
 
Methods inherited from interface org.gradle.api.NamedDomainObjectCollection
findByName, getAsMap
 
Methods inherited from interface org.gradle.api.DomainObjectCollection
allObjects, allObjects, findAll, getAll, whenObjectAdded, whenObjectAdded, whenObjectRemoved
 
Methods inherited from interface java.lang.Iterable
iterator
 

Method Detail

matching

TaskCollection<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.

Specified by:
matching in interface DomainObjectCollection<T extends Task>
Specified by:
matching in interface NamedDomainObjectCollection<T extends Task>
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

TaskCollection<T> matching(Closure closure)
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.

Specified by:
matching in interface DomainObjectCollection<T extends Task>
Specified by:
matching in interface NamedDomainObjectCollection<T extends Task>
Parameters:
closure - 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.

getByName

T getByName(String name,
            Closure configureClosure)
                         throws UnknownTaskException
Locates an object by name, failing if there is no such object. The given configure closure is executed against the object before it is returned from this method. The object is passed to the closure as it's delegate.

Specified by:
getByName in interface NamedDomainObjectCollection<T extends Task>
Parameters:
name - The object name
configureClosure - The closure to use to configure the object.
Returns:
The object with the given name, after the configure closure has been applied to it. Never returns null.
Throws:
UnknownTaskException

getByName

T getByName(String name)
                         throws UnknownTaskException
Locates an object by name, failing if there is no such object.

Specified by:
getByName in interface NamedDomainObjectCollection<T extends Task>
Parameters:
name - The object name
Returns:
The object with the given name. Never returns null.
Throws:
UnknownTaskException

withType

<S extends T> TaskCollection<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.

Specified by:
withType in interface DomainObjectCollection<T extends Task>
Specified by:
withType in interface NamedDomainObjectCollection<T extends Task>
Parameters:
type - The type of objects to find.
Returns:
The matching objects. Returns an empty set if there are no such objects in this collection.

whenTaskAdded

Action<? super T> whenTaskAdded(Action<? super T> action)
Adds an Action to be executed when a task is added to this collection.

Parameters:
action - The action to be executed
Returns:
the supplied action

whenTaskAdded

void whenTaskAdded(Closure closure)
Adds a closure to be called when a task is added to this collection. The task is passed to the closure as the parameter.

Parameters:
closure - The closure to be called

allTasks

void allTasks(Action<? super T> action)
Executes the given action against all tasks in this collection, and any tasks subsequently added to this collection.

Parameters:
action - The action to be executed

allTasks

void allTasks(Closure closure)
Executes the given closure against all tasks in this collection, and any tasks subsequently added to this collection.

Parameters:
closure - The closure to be called

getAt

T getAt(String name)
                     throws UnknownTaskException
Locates an object by name, failing if there is no such task. This method is identical to NamedDomainObjectCollection.getByName(String). You can call this method in your build script by using the groovy [] operator.

Specified by:
getAt in interface NamedDomainObjectCollection<T extends Task>
Parameters:
name - The object name
Returns:
The object with the given name. Never returns null.
Throws:
UnknownTaskException
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