org.alfresco.repo.rating
Class RatingServiceImpl

java.lang.Object
  org.alfresco.repo.rating.RatingServiceImpl

All Implemented Interfaces:

RatingService

public class RatingServiceImpl
extends java.lang.Object
implements RatingService

Constructor Summary

RatingServiceImpl()

Method Summary

void	applyRating(org.alfresco.service.cmr.repository.NodeRef targetNode, float rating, java.lang.String ratingSchemeName) This method applies the given rating to the specified target node.
float	getAverageRating(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingSchemeName) This method returns the average (mean) rating in the specified scheme for the specified nodeRef.
Rating	getRatingByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingSchemeName) This method gets the Rating applied by the current user to the specified node in the specified RatingScheme - if there is one.
java.io.Serializable	getRatingRollup(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingSchemeName, java.lang.String ratingRollupName) This method returns a 'rolled up' property value for the specified targetNode.
java.util.List	getRatingsByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode) This method gets the ratings applied by the current user to the specified node.
RatingScheme	getRatingScheme(java.lang.String ratingSchemeName) Returns the named rating scheme if there is one.
java.util.Map	getRatingSchemes() Returns the available rating schemes keyed by name.
int	getRatingsCount(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingSchemeName) This method gets the number of individual ratings which have been applied to the specified node in the specified RatingScheme.
float	getTotalRating(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingSchemeName) This method gets the total accumulated rating score for the specified node in the specified RatingScheme.
Rating	removeRatingByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode, java.lang.String ratingScheme) This method removes any Rating applied by the current user to the specified node in the specified RatingScheme.
void	setBehaviourFilter(BehaviourFilter behaviourFilter)
void	setDictionaryService(org.alfresco.service.cmr.dictionary.DictionaryService dictionaryService)
void	setNodeService(org.alfresco.service.cmr.repository.NodeService nodeService)
void	setRatingSchemeRegistry(RatingSchemeRegistry schemeRegistry)
void	setRollupNamingConventions(RatingNamingConventionsUtil namingConventions)

Methods inherited from class java.lang.Object

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

Constructor Detail

RatingServiceImpl

public RatingServiceImpl()

Method Detail

setRatingSchemeRegistry

public void setRatingSchemeRegistry(RatingSchemeRegistry schemeRegistry)

setDictionaryService

public void setDictionaryService(org.alfresco.service.cmr.dictionary.DictionaryService dictionaryService)

setNodeService

public void setNodeService(org.alfresco.service.cmr.repository.NodeService nodeService)

setBehaviourFilter

public void setBehaviourFilter(BehaviourFilter behaviourFilter)

setRollupNamingConventions

public void setRollupNamingConventions(RatingNamingConventionsUtil namingConventions)

getRatingSchemes

public java.util.Map getRatingSchemes()

Description copied from interface: RatingService

Returns the available rating schemes keyed by name.

Specified by:

getRatingSchemes in interface RatingService

Returns:

The rating schemes.

getRatingScheme

public RatingScheme getRatingScheme(java.lang.String ratingSchemeName)

Description copied from interface: RatingService

Returns the named rating scheme if there is one.

Specified by:

getRatingScheme in interface RatingService

Parameters:

ratingSchemeName - name of the rating scheme.

Returns:

The rating schemes if one of that name is registered, else null.

applyRating

public void applyRating(org.alfresco.service.cmr.repository.NodeRef targetNode,
                        float rating,
                        java.lang.String ratingSchemeName)
                 throws RatingServiceException

Description copied from interface: RatingService

This method applies the given rating to the specified target node. If a rating from the current user in the specified scheme already exists, it will be replaced.

Specified by:

applyRating in interface RatingService

Parameters:

targetNode - the node to which the rating is to be applied.

rating - the rating which is to be applied.

ratingSchemeName - the name of the rating scheme to use.

Throws:

RatingServiceException - if the rating is not within the range defined by the named scheme or if the named scheme is not registered.

See Also:

RatingService.getRatingSchemes(), RatingScheme

getRatingByCurrentUser

public Rating getRatingByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode,
                                     java.lang.String ratingSchemeName)

Description copied from interface: RatingService

This method gets the Rating applied by the current user to the specified node in the specified RatingScheme - if there is one.

Specified by:

getRatingByCurrentUser in interface RatingService

Parameters:

targetNode - the node on which the rating is sought.

Returns:

the Rating object if there is one, else null.

See Also:

RatingService.getRatingSchemes(), RatingScheme

getRatingsByCurrentUser

public java.util.List getRatingsByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode)

Description copied from interface: RatingService

This method gets the ratings applied by the current user to the specified node.

Specified by:

getRatingsByCurrentUser in interface RatingService

Parameters:

targetNode - the node on which the ratings are sought.

Returns:

a List of Rating objects if there are any, else Collections.emptyList().

See Also:

RatingService.getRatingSchemes(), RatingScheme

removeRatingByCurrentUser

public Rating removeRatingByCurrentUser(org.alfresco.service.cmr.repository.NodeRef targetNode,
                                        java.lang.String ratingScheme)

Description copied from interface: RatingService

This method removes any Rating applied by the current user to the specified node in the specified RatingScheme.

Specified by:

removeRatingByCurrentUser in interface RatingService

Parameters:

targetNode - the node from which the rating is to be removed.

Returns:

the deleted Rating object if there was one, else null.

See Also:

RatingService.getRatingSchemes(), RatingScheme

getTotalRating

public float getTotalRating(org.alfresco.service.cmr.repository.NodeRef targetNode,
                            java.lang.String ratingSchemeName)

Description copied from interface: RatingService

This method gets the total accumulated rating score for the specified node in the specified RatingScheme. That is, the rating scores for all users for the specified node are summed to give the result.

Specified by:

getTotalRating in interface RatingService

Parameters:

targetNode - the node on which the rating total is sought.

Returns:

the sum of all individual ratings applied to this node in the specified scheme.

See Also:

RatingService.getRatingSchemes(), RatingScheme

getAverageRating

public float getAverageRating(org.alfresco.service.cmr.repository.NodeRef targetNode,
                              java.lang.String ratingSchemeName)

Description copied from interface: RatingService

This method returns the average (mean) rating in the specified scheme for the specified nodeRef. If there have been no ratings applied, -1 is returned.

Specified by:

getAverageRating in interface RatingService

Parameters:

targetNode - the node for which an average is sought.

ratingSchemeName - the rating scheme name in which the average is defined.

Returns:

the average (mean) value if there is one, else -1.

getRatingsCount

public int getRatingsCount(org.alfresco.service.cmr.repository.NodeRef targetNode,
                           java.lang.String ratingSchemeName)

Description copied from interface: RatingService

This method gets the number of individual ratings which have been applied to the specified node in the specified RatingScheme.

Specified by:

getRatingsCount in interface RatingService

Parameters:

targetNode - the node on which the rating is sought.

Returns:

the number of individual ratings applied to this node.

See Also:

RatingService.getRatingSchemes(), RatingScheme

getRatingRollup

public java.io.Serializable getRatingRollup(org.alfresco.service.cmr.repository.NodeRef targetNode,
                                            java.lang.String ratingSchemeName,
                                            java.lang.String ratingRollupName)

Description copied from interface: RatingService

This method returns a 'rolled up' property value for the specified targetNode. Examples of rolled up property values are 'ratingTotal', 'ratingCount', but other values can be added.

Rolled up properties in the RatingService are stored as properties on the rated node and have their values calculated by running a fixed algorithm on properties stored across the cm:rating child nodes. An example of such a roll up would be 'ratingTotal' which would be the sum of all ratings applied to the targetNode in the specified rating scheme.

By rolling up property values from the various cm:rating child nodes and persisting them as individual properties on the cm:rateable node itself, we are able to support indexing, searching and sorting of such properties.

Specified by:

getRatingRollup in interface RatingService

Parameters:

targetNode - the rated node whose rolled up property we wish to read.

ratingSchemeName - the rating scheme name in which the property is relevant.

ratingRollupName - the name of the rating rollup property, as given in AbstractRatingRollupAlgorithm.getRollupName().

Returns:

A value for the rolled up property, which will depend of course on the rollup requested.