Package org.eclipse.emf.compare.match.eobject

Class EqualityHelperExtensionProviderDescriptorRegistryImpl

java.lang.Object

org.eclipse.emf.compare.match.eobject.EqualityHelperExtensionProviderDescriptorRegistryImpl

All Implemented Interfaces:

EqualityHelperExtensionProvider.Descriptor.Registry

public class EqualityHelperExtensionProviderDescriptorRegistryImpl
extends Object
implements EqualityHelperExtensionProvider.Descriptor.Registry

This will contain all of the EMF Compare equality helper extension provider descriptors.

Constructor Summary

Constructors

Constructor	Description
EqualityHelperExtensionProviderDescriptorRegistryImpl()	Creates a new extension registry.

Method Summary

Modifier and Type	Method	Description
void	clear()	Removes all extensions from this registry.
static EqualityHelperExtensionProvider.Descriptor.Registry	createStandaloneInstance()	Returns a default registry i.e. an empty one
com.google.common.collect.ImmutableList<EqualityHelperExtensionProvider.Descriptor>	getDescriptors()	This will return a copy of the registered equality helper extension providers list.
com.google.common.collect.ImmutableList<EqualityHelperExtensionProvider>	getEqualityHelperExtensionProviders(EPackage ePackage)	Retrieve the equality helper extension providers from a given ePackage.
EqualityHelperExtensionProvider	getHighestRankingEqualityHelperExtensionProvider(EPackage ePackage)	Retrieve the highest ranking equality helper extension provider from a given ePackage.
EqualityHelperExtensionProvider.Descriptor	put(String key, EqualityHelperExtensionProvider.Descriptor equalityHelperExtensionProvider)	Adds a equality helper extension provider to the registry.
EqualityHelperExtensionProvider.Descriptor	remove(String key)	Removes a equality helper extension provider from this registry.

Methods inherited from class java.lang.Object

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

Constructor Details

EqualityHelperExtensionProviderDescriptorRegistryImpl

public EqualityHelperExtensionProviderDescriptorRegistryImpl()

Creates a new extension registry.

Method Details

createStandaloneInstance

public static EqualityHelperExtensionProvider.Descriptor.Registry createStandaloneInstance()

Returns a default registry i.e. an empty one

Returns:

A default empty registry

put

public EqualityHelperExtensionProvider.Descriptor put(String key,
 EqualityHelperExtensionProvider.Descriptor equalityHelperExtensionProvider)

Adds a equality helper extension provider to the registry.

Specified by:

put in interface EqualityHelperExtensionProvider.Descriptor.Registry

Parameters:

key - key with which the specified descriptor is to be associated

equalityHelperExtensionProvider - equality helper extension provider that is to be added to this registry.

Returns:

the previous descriptor associated with key, or null if there was no mapping for key. (A null return can also indicate that the map previously associated null with key, if the implementation supports null values.)

clear

public void clear()

Removes all extensions from this registry.

Specified by:

clear in interface EqualityHelperExtensionProvider.Descriptor.Registry

getDescriptors

public com.google.common.collect.ImmutableList<EqualityHelperExtensionProvider.Descriptor> getDescriptors()

This will return a copy of the registered equality helper extension providers list.

Specified by:

getDescriptors in interface EqualityHelperExtensionProvider.Descriptor.Registry

Returns:

A copy of the registered equality helper extension providers list.

remove

public EqualityHelperExtensionProvider.Descriptor remove(String key)

Removes a equality helper extension provider from this registry.

Specified by:

remove in interface EqualityHelperExtensionProvider.Descriptor.Registry

Parameters:

key - key of the equality helper extension provider descriptor that is to be removed from the registry.

Returns:

the previous value associated with key, or null if there was no mapping for key.

getHighestRankingEqualityHelperExtensionProvider

public EqualityHelperExtensionProvider getHighestRankingEqualityHelperExtensionProvider(EPackage ePackage)

Retrieve the highest ranking equality helper extension provider from a given ePackage.

Specified by:

getHighestRankingEqualityHelperExtensionProvider in interface EqualityHelperExtensionProvider.Descriptor.Registry

Parameters:

ePackage - The given ePackage.

Returns:

The associated equality helper extension provider with the highest ranking.

getEqualityHelperExtensionProviders

public com.google.common.collect.ImmutableList<EqualityHelperExtensionProvider> getEqualityHelperExtensionProviders(EPackage ePackage)

Retrieve the equality helper extension providers from a given ePackage.

Specified by:

getEqualityHelperExtensionProviders in interface EqualityHelperExtensionProvider.Descriptor.Registry

Parameters:

ePackage - The given ePackage.

Returns:

The associated equality helper extension providers if any.