Package org.silverpeas.core

Class ResourceReference

java.lang.Object

org.silverpeas.core.WAPrimaryKey

org.silverpeas.core.ResourceReference

All Implemented Interfaces:

Serializable, Cloneable, ComponentResourceIdentifier, ResourceIdentifier

Direct Known Subclasses:

ContactPK, ContributionRatingPK, NodePK, PublicationPK, ThumbnailReference

public class ResourceReference
extends WAPrimaryKey
implements ComponentResourceIdentifier, Serializable

Reference to a resource managed by a component instance in Silverpeas. Such a reference is a ComponentResourceIdentifier used to identify any kinds of resources in Silverpeas without having knowledge on what this resource is. It is dedicated to be used to refer a given resource without having to pass it explicitly; information about the resource can be then passed from service to service without any coupling between them or with the underlying resource.

For compatibility reason, ResourceReference extends WAPrimaryKey but this inheritance will be removed in the future.

Author:

Nicolas Eysseric, mmoquillon

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static String	UNKNOWN_ID	Identifier referring that the resource behind is unknown and doesn't require to be known.

Fields inherited from class org.silverpeas.core.WAPrimaryKey

componentName, id, space

Constructor Summary

Constructors

Constructor	Description
ResourceReference(String id)	Constructs a new reference to a resource with the specified identifier.
ResourceReference(String id, String componentInstanceId)	Constructs a new reference to a resource with the specified identifier and that is managed by the specified component instance.
ResourceReference(ContributionIdentifier identifier)	Constructs a new reference to the specified contribution.
ResourceReference(WAPrimaryKey pk)	Constructs a new reference to a resource from the old and deprecated WAPrimaryKey object.

Method Summary

Modifier and Type	Method	Description
String	asString()	Gets the value of this identifier as a String.
boolean	equals(Object other)	Is the an another object is a ResourceReference instance and is equal to this object.
String	getComponentInstanceId()
String	getLocalId()
int	hashCode()	Gets the hash code of this reference.
static ResourceReference	to(ComponentResourceIdentifier resource)	Gets a reference to the specified resource managed by a component instance.

Methods inherited from class org.silverpeas.core.WAPrimaryKey

clone, getComponentName, getId, getInstanceId, getRootTableName, getSpace, getSpaceId, getTableName, getTableName, setComponentName, setId, setSpace, toResourceReference, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.silverpeas.core.ComponentResourceIdentifier

toReference

Field Detail

UNKNOWN_ID

public static final String UNKNOWN_ID

Identifier referring that the resource behind is unknown and doesn't require to be known.

See Also:

Constant Field Values

Constructor Detail

ResourceReference

public ResourceReference(ContributionIdentifier identifier)

Constructs a new reference to the specified contribution.

Parameters:

identifier - the unique identifier of a contribution.

ResourceReference

public ResourceReference(String id)

Constructs a new reference to a resource with the specified identifier. The resource doesn't belong to a component instance or that component instance isn't required to refer uniquely the resource.

Parameters:

id - the unique identifier of a resource from which it can be explicitly and uniquely referred in the whole Silverpeas.

ResourceReference

public ResourceReference(String id,
                         String componentInstanceId)

Constructs a new reference to a resource with the specified identifier and that is managed by the specified component instance.

Parameters:

id - the identifier of the resource, unique in the given component instance.

componentInstanceId - the unique identifier of the component instance.

ResourceReference

public ResourceReference(WAPrimaryKey pk)

Constructs a new reference to a resource from the old and deprecated WAPrimaryKey object.

Parameters:

pk - a WAPrimaryKey object used to identify uniquely a resource in Silverpeas.

Method Detail

to

public static ResourceReference to(ComponentResourceIdentifier resource)

Gets a reference to the specified resource managed by a component instance.

Parameters:

resource - the unique identifier of a resource managed by a component.

Returns:

a ResourceReference instance.

equals

public boolean equals(Object other)

Is the an another object is a ResourceReference instance and is equal to this object.

Specified by:

equals in class WAPrimaryKey

Parameters:

other - the object to compare to this reference.

Returns:

true if other is equals to this reference. False otherwise.

hashCode

public int hashCode()

Gets the hash code of this reference.

Overrides:

hashCode in class WAPrimaryKey

Returns:

an integer

getLocalId

public String getLocalId()

Specified by:

getLocalId in interface ComponentResourceIdentifier

getComponentInstanceId

public String getComponentInstanceId()

Specified by:

getComponentInstanceId in interface ComponentResourceIdentifier

asString

public String asString()

Description copied from interface: ResourceIdentifier

Gets the value of this identifier as a String.

Specified by:

asString in interface ResourceIdentifier

Returns:

the String representation of this identifier.