Package com.yetanalytics.xapi.model

Class Extensions

java.lang.Object

com.yetanalytics.xapi.model.Extensions

All Implemented Interfaces:

IFreeMap<URI,Object>

public class Extensions
extends Object
implements IFreeMap<URI,Object>

A wrapper object for using xAPI Extensions. The extension JSON data is stored in a combination of LinkedHashMap and ArrayList depending on the JSON elements. It can be accessed directly or through a JSONPath API.

Constructor Summary

Constructors

Constructor	Description
Extensions(Map<URI,Object> input)

Method Summary

Modifier and Type	Method	Description
Object	get(String key)	Retrieve extension data
Object	get(URI key)	Retrieve extension data
Set<URI>	getKeys()	Returns a set of all IRI Extension keys
Map<URI,Object>	getMap()	Returns the full raw Extension Map as a HashMap<URI, Object>
void	put(String key, Object value)	Sets an entry in the Extensions Map
void	put(URI key, Object value)	Sets an entry in the Extensions Map
<T> T	read(String key, String jsonPathExpression, Class<T> typeKey)	Attempt a JSONPath query of the Extension data.
<T> T	read(URI key, String jsonPathExpression, Class<T> typeKey)	Attempt a JSONPath query of the Extension data.
void	remove(String key)	Remove an extension by IRI key
void	remove(URI key)	Remove an extension by IRI key

Methods inherited from class java.lang.Object

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

Constructor Detail

Extensions

public Extensions(Map<URI,Object> input)

Method Detail

put

public void put(URI key,
                Object value)

Sets an entry in the Extensions Map

Specified by:

put in interface IFreeMap<URI,Object>

Parameters:

key - the URI key of the extension

value - The Collections API representation of the JSON Data

put

public void put(String key,
                Object value)
         throws IllegalArgumentException

Sets an entry in the Extensions Map

Specified by:

put in interface IFreeMap<URI,Object>

Parameters:

key - the IRI String key of the extension

value - The Collections API representation of the JSON Data

Throws:

IllegalArgumentException

get

public Object get(URI key)

Retrieve extension data

Specified by:

get in interface IFreeMap<URI,Object>

Parameters:

key - The URI key of the extension

Returns:

The Collections API representation of the JSON Data

get

public Object get(String key)
           throws IllegalArgumentException

Retrieve extension data

Specified by:

get in interface IFreeMap<URI,Object>

Parameters:

key - The IRI string key of the extension

Returns:

The Collections API representation of the JSON Data

Throws:

IllegalArgumentException

read

public <T> T read(URI key,
                  String jsonPathExpression,
                  Class<T> typeKey)

Attempt a JSONPath query of the Extension data.

Type Parameters:

T - The type that the query is expecting to convert the results to

Parameters:

key - The URI key of the extension in which to perform the query

jsonPathExpression - A JSONPath query to perform in the Extension data

typeKey - The typereference for the type that the query is expecting to retrieve

Returns:

Object of type T that is the result of deserialization from the query

read

public <T> T read(String key,
                  String jsonPathExpression,
                  Class<T> typeKey)
           throws IllegalArgumentException

Attempt a JSONPath query of the Extension data.

Type Parameters:

T - The type that the query is expecting to convert the results to

Parameters:

key - The IRI String key of the extension in which to perform the query

jsonPathExpression - A JSONPath query to perform in the Extension data

typeKey - The typereference for the type that the query is expecting to retrieve

Returns:

Object of type T that is the result of deserialization from the query

Throws:

IllegalArgumentException

remove

public void remove(URI key)

Remove an extension by IRI key

Specified by:

remove in interface IFreeMap<URI,Object>

Parameters:

key - the URI key of the extension to remove

remove

public void remove(String key)
            throws IllegalArgumentException

Remove an extension by IRI key

Specified by:

remove in interface IFreeMap<URI,Object>

Parameters:

key - the IRI String key of the extension to remove

Throws:

IllegalArgumentException

getKeys

public Set<URI> getKeys()

Returns a set of all IRI Extension keys

Specified by:

getKeys in interface IFreeMap<URI,Object>

Returns:

Set of IRI keys

getMap

public Map<URI,Object> getMap()

Returns the full raw Extension Map as a HashMap<URI, Object>

Specified by:

getMap in interface IFreeMap<URI,Object>

Returns:

The raw Extensions Map