Package com.google.appengine.spi

Class FactoryProvider<I>

java.lang.Object

com.google.appengine.spi.FactoryProvider<I>

Type Parameters:

I - is the interface the provided factory must implement.

All Implemented Interfaces:

Comparable<FactoryProvider<?>>

Direct Known Subclasses:

IAppIdentityServiceFactoryProvider, IBackendServiceFactoryProvider, IBlobstoreServiceFactoryProvider, ICapabilitiesServiceFactoryProvider, IDatastoreServiceFactoryProvider, IImagesServiceFactoryProvider, ILogServiceFactoryProvider, IMailServiceFactoryProvider, IMemcacheServiceFactoryProvider, IModulesServiceFactoryProvider, IOAuthServiceFactoryProvider, IQueueFactoryProvider, IQuotaServiceFactoryProvider, ISearchServiceFactoryProvider, IURLFetchServiceFactoryProvider, IUserServiceFactoryProvider

public abstract class FactoryProvider<I>
extends Object
implements Comparable<FactoryProvider<?>>

A base class for service factory creation that can be registered with the ProviderRegistry.

Method Summary

Modifier and Type	Method	Description
int	compareTo(FactoryProvider<?> o)	This ensures that a list of these will be sorted so that higher precedence entries come later in the list.
boolean	equals(Object o)	Included to support sorting by precedence (@see #compareTo(FactoryProvider))
int	hashCode()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Method Details

compareTo

public int compareTo(FactoryProvider<?> o)

This ensures that a list of these will be sorted so that higher precedence entries come later in the list.

Specified by:

compareTo in interface Comparable<I>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Included to support sorting by precedence (@see #compareTo(FactoryProvider))

Overrides:

equals in class Object