org.fishbolt.common.adapter.ext
Class SingleAdapterFactory

java.lang.Object
  org.fishbolt.common.adapter.ext.SingleAdapterFactory

All Implemented Interfaces:

IAdapterFactory

public class SingleAdapterFactory
extends java.lang.Object
implements IAdapterFactory

Base implementation of the IAdapterFactory interface that can create an adapter of one type only.

Field Summary

protected java.util.LinkedHashSet<java.lang.Class<?>>	adaptableTypes types of adaptable objects.
protected java.lang.Class<? extends IAdapter>	adpterClass adapter class

Constructor Summary

SingleAdapterFactory(java.lang.Class<? extends IAdapter> adpterClass)
The constructor of the Factory creating adapters with the required type for any adaptable object

SingleAdapterFactory(java.lang.Class<? extends IAdapter> adpterClass, java.lang.Class<? extends IAdaptable>... adaptableTypes)
The constructor of the Factory creating adapters with the type, declared in the first parameter.

Method Summary

<A extends IAdapter> A	create(java.lang.Class<A> adapterType, IAdaptable adaptable) In fact performs the creation of an adapter instance for the adaptable object.
java.lang.Class<? extends IAdapter>[]	getAdapterClasses() Declares the types of adapters, which instances can be created by the Factory.
protected <A extends IAdapter> A	instantiate(java.lang.Class<A> adapterType, IAdaptable adaptable) Defines creation of an object instance itself is provided by calling the newInstance() method for the adapter class defined in the constructor.

Methods inherited from class java.lang.Object

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

Field Detail

adpterClass

protected java.lang.Class<? extends IAdapter> adpterClass

adapter class

adaptableTypes

protected java.util.LinkedHashSet<java.lang.Class<?>> adaptableTypes

types of adaptable objects.

Constructor Detail

SingleAdapterFactory

public SingleAdapterFactory(java.lang.Class<? extends IAdapter> adpterClass)

The constructor of the Factory creating adapters with the required type for any adaptable object

Parameters:

adpterClass - - required adapter type.

See Also:

instantiate(Class, IAdaptable), IAdapter

SingleAdapterFactory

public SingleAdapterFactory(java.lang.Class<? extends IAdapter> adpterClass,
                            java.lang.Class<? extends IAdaptable>... adaptableTypes)

The constructor of the Factory creating adapters with the type, declared in the first parameter. The adapter is created only for the adaptable objects that can be reduced to one of the types delivered as other parameters.

Parameters:

adpterClass - required adapter type.

adaptableTypes - defines adaptable types to allow adapter creation for

See Also:

instantiate(Class, IAdaptable), IAdapter, IAdaptable

Method Detail

getAdapterClasses

public java.lang.Class<? extends IAdapter>[] getAdapterClasses()

Description copied from interface: IAdapterFactory

Declares the types of adapters, which instances can be created by the Factory.

Specified by:

getAdapterClasses in interface IAdapterFactory

Returns:

the types of adapters, which instances can be created by the Factory.

See Also:

IAdapter

create

public <A extends IAdapter> A create(java.lang.Class<A> adapterType,
                                     IAdaptable adaptable)

Description copied from interface: IAdapterFactory

In fact performs the creation of an adapter instance for the adaptable object. If the Factory does not support the adapter for this adaptable object, the returned value is null.

Specified by:

create in interface IAdapterFactory

Type Parameters:

A - declares a type of the required adapter

Parameters:

adapterType - defines a type of the required adapter

adaptable - object for which the current adapter is being created.

Returns:

adapter for this adaptable object, the returned value is null.

See Also:

IAdapter, IAdaptable

instantiate

protected <A extends IAdapter> A instantiate(java.lang.Class<A> adapterType,
                                             IAdaptable adaptable)

Defines creation of an object instance itself is provided by calling the newInstance() method for the adapter class defined in the constructor. So, it is necessary to be able to create adapter instances using another way: we should override the method.

Type Parameters:

A - adapter type

Parameters:

adapterType - adapter type

adaptable - to create adapter for

Returns:

adapter instance

Throws:

java.lang.RuntimeException - when it's impossible to instantiate adapter.