Module iu.util.type.impl

Package iu.type

Class ComponentResource<T>

java.lang.Object

iu.type.ComponentResource<T>

Type Parameters:

T - resource type

All Implemented Interfaces:

IuResource<T>, Supplier<T>

class ComponentResource<T>
extends Object
implements IuResource<T>

Implementation of IuResource;

Constructor Summary

Constructors

Constructor	Description
ComponentResource(boolean needsAuthentication, boolean shared, int priority, String name, TypeTemplate<?,T> type, Supplier<?> factory)	Constructor.

Method Summary

Modifier and Type	Method	Description
(package private) static ComponentResource<byte[]>	createWebResource(String name, byte[] data)	Creates a static web resource.
Supplier<?>	factory()	Gets the factory to be used for creating new instances.
void	factory(Supplier<?> factory)	Provides a factory to use for creating new instances of the resource.
T	get()	Gets the resource value.
(package private) static Iterable<ComponentResource<?>>	getResources(Class<?> targetClass)	Gets all resources definitions tied to an implementation class
String	name()	Gets the resource name.
boolean	needsAuthentication()	Determines whether or not the resource should be authenticated before handing off to a managed application.
void	postConstruct()	Performs post-construct logic for a shared resource.
void	preDestroy()	Performs pre-destroy logic for a shared resource.
int	priority()	Indicates the initialization priority.
boolean	shared()	Determines whether or not the resource is shared.
String	toString()
IuType<?,T>	type()	Gets the resource type

Methods inherited from class java.lang.Object

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

Constructor Details

ComponentResource

ComponentResource(boolean needsAuthentication,
 boolean shared,
 int priority,
 String name,
 TypeTemplate<?,T> type,
 Supplier<?> factory)

Constructor.

Parameters:

needsAuthentication - whether or not authentication is needed

shared - whether or not the resource is shared

priority - initialization priority

name - resource name

type - resource type

factory - factory for creating new instances

Method Details

createWebResource

static ComponentResource<byte[]> createWebResource(String name,
 byte[] data)

Creates a static web resource.

Parameters:

name - name

data - content

Returns:

static web resource

getResources

static Iterable<ComponentResource<?>> getResources(Class<?> targetClass)

Gets all resources definitions tied to an implementation class

Parameters:

targetClass - class to check

Returns:

resource definitions

needsAuthentication

public boolean needsAuthentication()

Description copied from interface: IuResource

Determines whether or not the resource should be authenticated before handing off to a managed application.

Specified by:

needsAuthentication in interface IuResource<T>

Returns:

true if the resource requires authentication; else false

shared

public boolean shared()

Description copied from interface: IuResource

Determines whether or not the resource is shared.

Specified by:

shared in interface IuResource<T>

Returns:

true if the resource is shared; else false

priority

public int priority()

Description copied from interface: IuResource

Indicates the initialization priority.

Specified by:

priority in interface IuResource<T>

Returns:

initialization priority

name

public String name()

Description copied from interface: IuResource

Gets the resource name.

Specified by:

name in interface IuResource<T>

Returns:

resource name

type

public IuType<?,T> type()

Description copied from interface: IuResource

Gets the resource type

Specified by:

type in interface IuResource<T>

Returns:

resource type

postConstruct

public void postConstruct()

Description copied from interface: IuResource

Performs post-construct logic for a shared resource.

Specified by:

postConstruct in interface IuResource<T>

preDestroy

public void preDestroy()

Description copied from interface: IuResource

Performs pre-destroy logic for a shared resource.

Specified by:

preDestroy in interface IuResource<T>

factory

public Supplier<?> factory()

Description copied from interface: IuResource

Gets the factory to be used for creating new instances.

By default, returns a Supplier that:

• Returns IuType.autoboxDefault() if the resource type is an immutable single-value
• Invokes IuExecutable.exec(Object...) on an an internally managed implementation class or InvocationHandler suitable for representing the resource

Specified by:

factory in interface IuResource<T>

Returns:

factory that supplies new instance of the resource, or an InvocationHandler for backing a Proxy.

factory

public void factory(Supplier<?> factory)

Description copied from interface: IuResource

Provides a factory to use for creating new instances of the resource.

The factory may return:

• A direct instance of the resource class.
• A instance of a class that implements the resource interface
• An InvocationHandler to back a Proxy for the resource interface

To selective override default behavior, call IuResource.factory() first to get a reference to the default factory.

Specified by:

factory in interface IuResource<T>

Parameters:

factory - resource implementation factory.

get

public T get()

Description copied from interface: IuResource

Gets the resource value.

Provides a new or immutable instance when IuResource.shared() returns false; may provide the same instance on subsequent calls when IuResource.shared() returns true.

Specified by:

get in interface IuResource<T>

Specified by:

get in interface Supplier<T>

toString

public String toString()

Overrides:

toString in class Object