org.pentaho.reporting.libraries.repository.dummy

Class DummyContentLocation

java.lang.Object

org.pentaho.reporting.libraries.repository.dummy.DummyContentLocation

All Implemented Interfaces:

Serializable, ContentEntity, ContentLocation

public class DummyContentLocation
extends Object
implements ContentLocation, Serializable

A dummy content location holds references to all dummy items. It does allow to create any items, but always reports itself as empty location. This implementation only serves as data-sink in case the generated content is not needed anywhere.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DummyContentLocation(ContentLocation parent, String name) Creates a new DummyContentLocation with the given parent and name.
DummyContentLocation(Repository repository, String name) Creates a new root DummyContentLocation with the given repository and name.

Method Summary

Methods

Modifier and Type	Method and Description
ContentItem	createItem(String name) Creates a new data item in the current location.
ContentLocation	createLocation(String name) Creates a new content location in the current location.
boolean	delete() A dummy location does not have content and therefore does not support the delete command.
boolean	exists(String name) A dummy location does not have children, therefore this method always returns false.
Object	getAttribute(String domain, String key) Dummy locations do not have attributes, therefore this method always returns null.
Object	getContentId() Returns the full pathname of the location.
ContentEntity	getEntry(String name) Returns the content entity with the given name.
String	getName() Returns the name of the entry.
ContentLocation	getParent() Returns the parent, if there is any.
Repository	getRepository() Returns the parent repository for this location.
ContentEntity[]	listContents() Returns all content entities stored in this content-location.
boolean	setAttribute(String domain, String key, Object value) Dummy locations do not allow to set attributes, therefore this method always returns false.

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyContentLocation

public DummyContentLocation(ContentLocation parent,
                    String name)

Creates a new DummyContentLocation with the given parent and name. The location will inherit the repository from its parent.

Parameters:

parent - the parent location.

name - the name of this location.

DummyContentLocation

public DummyContentLocation(Repository repository,
                    String name)

Creates a new root DummyContentLocation with the given repository and name.

Parameters:

repository - the repository.

name - the name of this location.

Method Detail

listContents

public ContentEntity[] listContents()
                             throws ContentIOException

Returns all content entities stored in this content-location. This always returns an empty array.

Specified by:

listContents in interface ContentLocation

Returns:

the content entities for this location, an empty array.

Throws:

ContentIOException - if an repository error occured.

getEntry

public ContentEntity getEntry(String name)
                       throws ContentIOException

Returns the content entity with the given name. This always throws the ContentIOException, as this implementation claims to not know any of its childs.

Specified by:

getEntry in interface ContentLocation

Parameters:

name - the name of the entity to be retrieved.

Returns:

the content entity for this name, never null.

Throws:

ContentIOException - if an repository error occured.

createItem

public ContentItem createItem(String name)
                       throws ContentCreationException

Creates a new data item in the current location. This method must never return null. This method will fail if an entity with the same name exists in this location.

Specified by:

createItem in interface ContentLocation

Parameters:

name - the name of the new entity.

Returns:

the newly created entity, never null.

Throws:

ContentCreationException - if the item could not be created.

createLocation

public ContentLocation createLocation(String name)
                               throws ContentCreationException

Creates a new content location in the current location. This method must never return null. This method will fail if an entity with the same name exists in this location.

Specified by:

createLocation in interface ContentLocation

Parameters:

name - the name of the new entity.

Returns:

the newly created entity, never null.

Throws:

ContentCreationException - if the item could not be created.

exists

public boolean exists(String name)

A dummy location does not have children, therefore this method always returns false.

Specified by:

exists in interface ContentLocation

Parameters:

name - the name of the item.

Returns:

false.

getName

public String getName()

Returns the name of the entry.

Specified by:

getName in interface ContentEntity

Returns:

the name, never null.

getContentId

public Object getContentId()

Returns the full pathname of the location.

Specified by:

getContentId in interface ContentEntity

Returns:

the full pathname.

getAttribute

public Object getAttribute(String domain,
                  String key)

Dummy locations do not have attributes, therefore this method always returns null.

Specified by:

getAttribute in interface ContentEntity

Parameters:

domain - the attribute domain.

key - the name of the attribute.

Returns:

the value or null, if the content-entity does not have a value for this attribute.

setAttribute

public boolean setAttribute(String domain,
                   String key,
                   Object value)

Dummy locations do not allow to set attributes, therefore this method always returns false.

Specified by:

setAttribute in interface ContentEntity

Parameters:

domain - the attribute domain.

key - the attribute name

value - the new attribute value.

Returns:

false.

getParent

public ContentLocation getParent()

Returns the parent, if there is any.

Specified by:

getParent in interface ContentEntity

Returns:

the parent.

getRepository

public Repository getRepository()

Returns the parent repository for this location.

Specified by:

getRepository in interface ContentEntity

Returns:

the repository.

delete

public boolean delete()

A dummy location does not have content and therefore does not support the delete command.

Specified by:

delete in interface ContentEntity

Returns:

always false.