org.jclouds.internal

Class BaseView

java.lang.Object

com.google.common.collect.ForwardingObject

org.jclouds.internal.BaseView

All Implemented Interfaces:

View

Direct Known Subclasses:

BlobStoreContextImpl, ComputeServiceContextImpl, LoadBalancerServiceContextImpl

@Singleton
public abstract class BaseView
extends com.google.common.collect.ForwardingObject
implements View

Author:

Adrian Cole

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseView(Context backend, com.google.common.reflect.TypeToken<? extends Context> backendType)

Method Summary

Methods

Modifier and Type	Method and Description
protected Context	delegate()
boolean	equals(Object o)
com.google.common.reflect.TypeToken<? extends Context>	getBackendType()
int	hashCode()
protected com.google.common.base.Objects.ToStringHelper	string()
String	toString()
<C extends Context> C	unwrap() shortcut for unwrap(getWrappedType())
<C extends Context> C	unwrap(com.google.common.reflect.TypeToken<C> type) Return an object of the specified type to allow access to the backend context.

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseView

protected BaseView(Context backend,
        com.google.common.reflect.TypeToken<? extends Context> backendType)

Method Detail

unwrap

public <C extends Context> C unwrap(com.google.common.reflect.TypeToken<C> type)

Description copied from interface: View

Return an object of the specified type to allow access to the backend context. If the backend context is not assignable from the supplied type, an IllegalArgumentException is thrown. ex.

 RestContext backendApi = computeContext.unwrap(NovaApiMetadata.CONTEXT_TOKEN);
 

Specified by:

unwrap in interface View

Parameters:

type - the type of the context to be returned. The backend context must be assignable from this type.

Returns:

an instance of the specified type

See Also:

View.getBackendType()

getBackendType

public com.google.common.reflect.TypeToken<? extends Context> getBackendType()

Specified by:

getBackendType in interface View

Returns:

type of the context powering the current one.

unwrap

public <C extends Context> C unwrap()
                         throws ClassCastException

Description copied from interface: View

shortcut for unwrap(getWrappedType())

Specified by:

unwrap in interface View

Throws:

ClassCastException - if the user supplied C param is not assignableFrom View.getBackendType()

delegate

protected Context delegate()

Specified by:

delegate in class com.google.common.collect.ForwardingObject

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class com.google.common.collect.ForwardingObject

string

protected com.google.common.base.Objects.ToStringHelper string()