org.apache.polygene.api.association

Class NamedAssociationWrapper

java.lang.Object

org.apache.polygene.api.association.NamedAssociationWrapper

All Implemented Interfaces:

Iterable<String>, AbstractAssociation, NamedAssociation<Object>

public class NamedAssociationWrapper
extends Object
implements NamedAssociation<Object>

If you want to catch calls to NamedAssociations, then create a GenericConcern that wraps the Polygene-supplied NamedAssociations instance with NamedAssociationsWrapper. Override methods to perform your custom code.

Field Summary

Fields

Modifier and Type	Field and Description
protected NamedAssociation<Object>	next

Constructor Summary

Constructors

Constructor and Description
NamedAssociationWrapper(NamedAssociation<Object> next)

Method Summary

Modifier and Type	Method and Description
boolean	clear() Clear all named associations.
boolean	containsName(String name) Checks if there is an association with the given name.
int	count()
boolean	equals(Object obj)
Object	get(String name) Retrieves a named association.
int	hashCode()
Iterator<String>	iterator()
String	nameOf(Object entity) Checks if the entity is present.
NamedAssociation<Object>	next()
boolean	put(String name, Object entity) Adds a named association.
EntityReference	referenceOf(String name) Returns the EntityReference for the Association with the given name.
Stream<Map.Entry<String,EntityReference>>	references() Returns a stream of the references to the associated entities.
boolean	remove(String name) Remove a named association.
Map<String,Object>	toMap()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

next

protected NamedAssociation<Object> next

Constructor Detail

NamedAssociationWrapper

public NamedAssociationWrapper(NamedAssociation<Object> next)

Method Detail

next

public NamedAssociation<Object> next()

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>

count

public int count()

Specified by:

count in interface NamedAssociation<Object>

Returns:

The number of named associations in this NamedAssociation.

containsName

public boolean containsName(String name)

Description copied from interface: NamedAssociation

Checks if there is an association with the given name.

Specified by:

containsName in interface NamedAssociation<Object>

Parameters:

name - The name of the association we are checking if it exists.

Returns:

true if it exists, false otherwise

put

public boolean put(String name,
                   Object entity)

Description copied from interface: NamedAssociation

Adds a named association.

Specified by:

put in interface NamedAssociation<Object>

Parameters:

name - The name of the association.

entity - The entity for this named association.

Returns:

true if value has been updated to a new value.

remove

public boolean remove(String name)

Description copied from interface: NamedAssociation

Remove a named association.

Specified by:

remove in interface NamedAssociation<Object>

Parameters:

name - The name of the association.

Returns:

true if removed, false otherwise

clear

public boolean clear()

Description copied from interface: NamedAssociation

Clear all named associations.

Specified by:

clear in interface NamedAssociation<Object>

Returns:

true if cleared, false otherwise

get

public Object get(String name)

Description copied from interface: NamedAssociation

Retrieves a named association.

Specified by:

get in interface NamedAssociation<Object>

Parameters:

name - The name of the association.

Returns:

The entity that has previously been associated.

nameOf

public String nameOf(Object entity)

Description copied from interface: NamedAssociation

Checks if the entity is present. Note that this is potentially a very slow operation, depending on the size of the NamedAssociation.

Specified by:

nameOf in interface NamedAssociation<Object>

Parameters:

entity - The entity to look for.

Returns:

The name of the entity if found, otherwise null.

toMap

public Map<String,Object> toMap()

Specified by:

toMap in interface NamedAssociation<Object>

Returns:

A fully populated Map with the content of this NamedAssociation.

references

public Stream<Map.Entry<String,EntityReference>> references()

Description copied from interface: NamedAssociation

Returns a stream of the references to the associated entities.

Specified by:

references in interface NamedAssociation<Object>

Returns:

the references to the associated entities.

referenceOf

public EntityReference referenceOf(String name)

Description copied from interface: NamedAssociation

Returns the EntityReference for the Association with the given name.

Specified by:

referenceOf in interface NamedAssociation<Object>

Parameters:

name - The name of the association to return the EntityReference for

Returns:

The EntityReference of the association.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object