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## griffon.core
[Java] Interface ArtifactManager

    griffon.core.ApplicationHandler
      griffon.core.ArtifactManager

All Superinterfaces:
  ApplicationHandler

    public interface ArtifactManager
    extends ApplicationHandler

Helper class capable of dealing with artifacts and their handlers.

Authors:
  Andres Almiray

Field Summary
`GriffonClass[]` | `EMPTY_GRIFFON_CLASS_ARRAY`
`List` | `EMPTY_GRIFFON_CLASS_LIST`

Method Summary
`GriffonClass` | `findGriffonClass(String name, String type)` Finds an artifact by name and type.
`GriffonClass` | `findGriffonClass(Class clazz, String type)` Finds an artifact by class and type.
`GriffonClass` | `findGriffonClass(Object obj)` Finds an artifact by class.
`GriffonClass` | `findGriffonClass(Class clazz)` Finds an artifact by class.
`GriffonClass` | `findGriffonClass(String fqnClassName)` Finds an artifact by name.
`List` | `getAllClasses()` Finds all artifact classes.
`List` | `getClassesOfType(String type)` Finds all artifacts of an specific type.
`void` | `loadArtifactMetadata()` Reads the artifacts definitions file from the classpath.
`void` | `registerArtifactHandler(ArtifactHandler handler)` Registers an ArtifactHandler by type.
`void` | `unregisterArtifactHandler(ArtifactHandler handler)` Removes an ArtifactHandler by type.

Methods inherited from interface ApplicationHandler
getApp

Field Detail

### EMPTY_GRIFFON_CLASS_ARRAY

    public GriffonClass[] EMPTY_GRIFFON_CLASS_ARRAY

### EMPTY_GRIFFON_CLASS_LIST

    public List EMPTY_GRIFFON_CLASS_LIST

Method Detail

### findGriffonClass

    public GriffonClass findGriffonClass(String name, String type)

  Finds an artifact by name and type.

  Example: findGriffonClass("Book", "controller") will return an artifact class that describes BookController.

  Parameters:
    `name` - the name of the artifact, e.g. 'Book'
    `type` - the type of the artifact, e.g. 'controller'
  Returns:
    the GriffonClass associated with the artifact is there's a match, null otherwise.

### findGriffonClass

    public GriffonClass findGriffonClass(Class clazz, String type)

  Finds an artifact by class and type.

  Example: findGriffonClass(BookController, "controller") will return an artifact class that describes BookController.

  Parameters:
    `clazz` - the name of the artifact, e.g. com.acme.BookController
    `type` - the type of the artifact, e.g. 'controller'
  Returns:
    the GriffonClass associated with the artifact is there's a match, null otherwise.

### findGriffonClass

    public GriffonClass findGriffonClass(Object obj)

  Finds an artifact by class.

  Example: findGriffonClass(aBookControllerInstance) will return an artifact class that describes BookController.

  Parameters:
    `obj` - an artifact instance
  Returns:
    the GriffonClass associated with the artifact is there's a match, null otherwise.

### findGriffonClass

    public GriffonClass findGriffonClass(Class clazz)

  Finds an artifact by class.

  Example: findGriffonClass(BookController) will return an artifact class that describes BookController.

  Parameters:
    `clazz` - a Class instance
  Returns:
    the GriffonClass associated with the artifact is there's a match, null otherwise.

### findGriffonClass

    public GriffonClass findGriffonClass(String fqnClassName)

  Finds an artifact by name.

  Example: findGriffonClass("BookController") will return an artifact class that describes BookController.

  Parameters:
    `fqnClassName` - full qualified class name
  Returns:
    the GriffonClass associated with the artifact is there's a match, null otherwise.

### getAllClasses

    public List getAllClasses()

  Finds all artifact classes.

  Returns:
    a List of all available GriffonClass instances. Never returns null.

### getClassesOfType

    public List getClassesOfType(String type)

  Finds all artifacts of an specific type.

  Example: getClassesOfType("controller") will return all artifact classes that describe controllers.

  Parameters:
    `type` - an artifact type, e.g. 'controller'
  Returns:
    a List of matching artifacts or an empty List if no match. Never returns null.

### loadArtifactMetadata

    public void loadArtifactMetadata()

  Reads the artifacts definitions file from the classpath.

  Should call initialize() on artifact handlers if there are any registered already.

### registerArtifactHandler

    public void registerArtifactHandler(ArtifactHandler handler)

  Registers an ArtifactHandler by type.

  Should call initialize() on the handler.

  Parameters:
    `handler` - an ArtifactHandler

### unregisterArtifactHandler

    public void unregisterArtifactHandler(ArtifactHandler handler)

  Removes an ArtifactHandler by type.
  Parameters:
    `handler` - an ArtifactHandler

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