org.sakaiproject.entitybroker.entityprovider.extension

Class EntityData

java.lang.Object

org.sakaiproject.entitybroker.entityprovider.extension.EntityData

public class EntityData
extends Object

This is an object to hold entity data (e.g. from a search which would normally return entity references), This is basically a POJO which allows us to return a few results instead of only the reference, it helps us get the entity data back more efficiently and makes it easier on developers who need to search for entities

Author:

Aaron Zeckoski (azeckoski @ gmail.com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	EntityData.ReferenceComparator
static class	EntityData.TitleComparator

Constructor Summary

Constructors

Constructor and Description
EntityData(EntityReference ref, String displayTitle) Minimal constructor - used for most basic cases Use the setters to add in properties or the entity data if desired
EntityData(EntityReference ref, String displayTitle, Object entity) Basic constructor Use this to construct a search result using the typical minimal amount of information, Use the setters to add in properties or the entity data if desired
EntityData(EntityReference ref, String displayTitle, Object entity, Map<String,Object> entityProperties) Full constructor Use this if you want to return the entity itself along with the key meta data and properties
EntityData(Object data) Using this as a data wrapper only
EntityData(Object data, Map<String,Object> entityProperties) Using this as a data wrapper only
EntityData(String reference, String displayTitle) Minimal constructor - used for most basic cases Use the setters to add in properties or the entity if desired
EntityData(String reference, String displayTitle, Object entity) Basic constructor Use this to construct a search result using the typical minimal amount of information, Use the setters to add in properties or the entity if desired
EntityData(String reference, String displayTitle, Object entity, Map<String,Object> entityProperties) Full constructor Use this if you want to return the entity itself along with the key meta data and properties

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Object	getData() (OPTIONAL - may be null) This is the entity data object itself (if there is one), this is included at the discretion of the entity provider author, if this is null then the entity data is not available or would be prohibitively large (i.e. typically left out for efficiency)
String	getDisplayTitle() A string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the data represented by an entity
String	getEntityId()
Map<String,Object>	getEntityProperties() A set of properties to return along with the entity information, this may be presented and used for filtering, this will be empty if it is not used
EntityReference	getEntityRef() The entity reference object which makes it easy to get to the prefix or id of this entity if needed
String	getEntityReference() The entity reference - a globally unique reference to an entity, consists of the entity prefix and optional segments (normally the id at least)
String	getEntityURL() The entityURL to the entity represented by this reference, should be an absolute entityURL (server name optional)
int	hashCode()
boolean	isDataOnly()
boolean	isDisplayTitleSet()
boolean	isPopulated()
void	setData(Object entity)
void	setDataOnly(boolean dataOnly) FOR INTERNAL USE ONLY - do not use
void	setDisplayTitle(String displayTitle) A string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the data represented by an entity
void	setEntityProperties(Map<String,Object> entityProperties) (OPTIONAL - may be null) A set of properties to return along with the entity information, this may be presented and used for filtering, should be null or empty if not used
void	setEntityURL(String url) WARNING: for internal use only
void	setPopulated(boolean populated) FOR INTERNAL USE ONLY - do not use
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityData

public EntityData(String reference,
                  String displayTitle)

Minimal constructor - used for most basic cases
Use the setters to add in properties or the entity if desired

Parameters:

reference - a globally unique reference to an entity, consists of the entity prefix and id (e.g. /prefix/id)

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

EntityData

public EntityData(String reference,
                  String displayTitle,
                  Object entity)

Basic constructor
Use this to construct a search result using the typical minimal amount of information, Use the setters to add in properties or the entity if desired

Parameters:

reference - a globally unique reference to an entity, consists of the entity prefix and id (e.g. /prefix/id)

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

data - an entity data object, see Resolvable

EntityData

public EntityData(String reference,
                  String displayTitle,
                  Object entity,
                  Map<String,Object> entityProperties)

Full constructor
Use this if you want to return the entity itself along with the key meta data and properties

Parameters:

reference - a globally unique reference to an entity, consists of the entity prefix and id (e.g. /prefix/id)

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

data - an entity data object, see Resolvable

entityProperties - a set of properties to return along with the entity information, this may be presented and used for filtering,

EntityData

public EntityData(EntityReference ref,
                  String displayTitle)

Minimal constructor - used for most basic cases
Use the setters to add in properties or the entity data if desired

Parameters:

ref - an object which represents a globally unique reference to an entity, consists of the entity prefix and id

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

EntityData

public EntityData(EntityReference ref,
                  String displayTitle,
                  Object entity)

Basic constructor
Use this to construct a search result using the typical minimal amount of information, Use the setters to add in properties or the entity data if desired

Parameters:

ref - an object which represents a globally unique reference to an entity, consists of the entity prefix and id

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

data - an entity data object, see Resolvable

EntityData

public EntityData(EntityReference ref,
                  String displayTitle,
                  Object entity,
                  Map<String,Object> entityProperties)

Full constructor
Use this if you want to return the entity itself along with the key meta data and properties

Parameters:

ref - an object which represents a globally unique reference to an entity, consists of the entity prefix and id

entityDisplayTitle - a string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the entity represented by an entity

data - an entity data object, see Resolvable

entityProperties - a set of properties to return along with the entity information, this may be presented and used for filtering,

EntityData

public EntityData(Object data)

Using this as a data wrapper only

Parameters:

data - any data to wrap this in

EntityData

public EntityData(Object data,
                  Map<String,Object> entityProperties)

Using this as a data wrapper only

Parameters:

data - any data to wrap this in

entityProperties - a set of properties to return along with the entity information, this may be presented and used for filtering,

Method Detail

setData

public void setData(Object entity)

getData

public Object getData()

(OPTIONAL - may be null) This is the entity data object itself (if there is one), this is included at the discretion of the entity provider author, if this is null then the entity data is not available or would be prohibitively large (i.e. typically left out for efficiency)

getEntityId

public String getEntityId()

Returns:

the unique local id of the entity (null if there is none)

getEntityReference

public String getEntityReference()

The entity reference - a globally unique reference to an entity, consists of the entity prefix and optional segments (normally the id at least)

getEntityRef

public EntityReference getEntityRef()

The entity reference object which makes it easy to get to the prefix or id of this entity if needed

setDisplayTitle

public void setDisplayTitle(String displayTitle)

A string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the data represented by an entity

getDisplayTitle

public String getDisplayTitle()

A string which is suitable for display and provides a short summary of the entity, typically 100 chars or less, this may be the name or title of the data represented by an entity

isDisplayTitleSet

public boolean isDisplayTitleSet()

Returns:

true if the display title is actually set, false if it is null and will return an auto-generated value

setEntityURL

public void setEntityURL(String url)

WARNING: for internal use only

Parameters:

url - the url to access this entity

getEntityURL

public String getEntityURL()

The entityURL to the entity represented by this reference, should be an absolute entityURL (server name optional)

setEntityProperties

public void setEntityProperties(Map<String,Object> entityProperties)

(OPTIONAL - may be null) A set of properties to return along with the entity information, this may be presented and used for filtering, should be null or empty if not used

Parameters:

entityProperties - a map of property name => value

getEntityProperties

public Map<String,Object> getEntityProperties()

A set of properties to return along with the entity information, this may be presented and used for filtering, this will be empty if it is not used

setPopulated

public void setPopulated(boolean populated)

FOR INTERNAL USE ONLY - do not use

isPopulated

public boolean isPopulated()

Returns:

true if this object was populated, false otherwise

setDataOnly

public void setDataOnly(boolean dataOnly)

FOR INTERNAL USE ONLY - do not use

isDataOnly

public boolean isDataOnly()

Returns:

true if this is a data holder and the data inside it should be rendered alone without this wrapper

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object