org.apache.bookkeeper.feature

Class CacheableFeatureProvider<T extends Feature>

java.lang.Object

org.apache.bookkeeper.feature.CacheableFeatureProvider<T>

All Implemented Interfaces:

FeatureProvider

Direct Known Subclasses:

SettableFeatureProvider

public abstract class CacheableFeatureProvider<T extends Feature>
extends java.lang.Object
implements FeatureProvider

Cacheable Feature Provider.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.concurrent.ConcurrentMap<java.lang.String,T>	features
protected java.lang.String	scope
protected java.util.concurrent.ConcurrentMap<java.lang.String,FeatureProvider>	scopes

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CacheableFeatureProvider(java.lang.String scope)

Method Summary

Modifier and Type	Method and Description
T	getFeature(java.lang.String name) Return the feature with given name.
protected abstract T	makeFeature(java.lang.String featureName)
protected java.lang.String	makeName(java.lang.String name)
protected abstract FeatureProvider	makeProvider(java.lang.String fullScopeName)
FeatureProvider	scope(java.lang.String name) Provide the feature provider under scope name.

Methods inherited from class java.lang.Object

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

Field Detail

scope

protected final java.lang.String scope

scopes

protected final java.util.concurrent.ConcurrentMap<java.lang.String,FeatureProvider> scopes

features

protected final java.util.concurrent.ConcurrentMap<java.lang.String,T extends Feature> features

Constructor Detail

CacheableFeatureProvider

protected CacheableFeatureProvider(java.lang.String scope)

Method Detail

makeName

protected java.lang.String makeName(java.lang.String name)

getFeature

public T getFeature(java.lang.String name)

Description copied from interface: FeatureProvider

Return the feature with given name.

Specified by:

getFeature in interface FeatureProvider

Parameters:

name - feature name

Returns:

feature instance

makeFeature

protected abstract T makeFeature(java.lang.String featureName)

scope

public FeatureProvider scope(java.lang.String name)

Description copied from interface: FeatureProvider

Provide the feature provider under scope name.

Specified by:

scope in interface FeatureProvider

Parameters:

name - scope name.

Returns:

feature provider under scope name

makeProvider

protected abstract FeatureProvider makeProvider(java.lang.String fullScopeName)