org.apache.ambari.server.controller

Class ControllerModule

java.lang.Object

com.google.inject.AbstractModule

org.apache.ambari.server.controller.ControllerModule

All Implemented Interfaces:

com.google.inject.Module

Direct Known Subclasses:

DatabaseConsistencyChecker.CheckHelperControllerModule, HostUpdateHelper.UpdateHelperModule, SchemaUpgradeHelper.UpgradeHelperModule

public class ControllerModule
extends com.google.inject.AbstractModule

Used for injection purposes.

Constructor Summary

Constructors

Constructor and Description
ControllerModule()
ControllerModule(Properties properties)

Method Summary

Modifier and Type	Method and Description
protected Set<Class<?>>	bindByAnnotation(Set<Class<?>> matchedClasses) Initializes specially-marked interfaces that require injection.
protected Set<org.springframework.beans.factory.config.BeanDefinition>	bindNotificationDispatchers(Set<org.springframework.beans.factory.config.BeanDefinition> beanDefinitions) Searches for all instances of NotificationDispatcher on the classpath and registers each as a singleton with the DispatchFactory.
protected void	configure()
static Properties	getPersistenceProperties(Configuration configuration) Get the common persistence related configuration properties.

Methods inherited from class com.google.inject.AbstractModule

addError, addError, addError, bind, bind, bind, bindConstant, binder, bindInterceptor, bindListener, bindListener, bindScope, configure, convertToTypes, currentStage, getMembersInjector, getMembersInjector, getProvider, getProvider, install, requestInjection, requestStaticInjection, requireBinding, requireBinding

Methods inherited from class java.lang.Object

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

Constructor Detail

ControllerModule

public ControllerModule()
                 throws Exception

Throws:

Exception

ControllerModule

public ControllerModule(Properties properties)
                 throws Exception

Throws:

Exception

Method Detail

getPersistenceProperties

public static Properties getPersistenceProperties(Configuration configuration)

Get the common persistence related configuration properties.

Returns:

the configuration properties

configure

protected void configure()

Specified by:

configure in class com.google.inject.AbstractModule

bindByAnnotation

protected Set<Class<?>> bindByAnnotation(Set<Class<?>> matchedClasses)

Initializes specially-marked interfaces that require injection.

An example of where this is needed is with a singleton that is headless; in other words, it doesn't have any injections but still needs to be part of the Guice framework.

A second example of where this is needed is when classes require static members that are available via injection.

Although Spring has a nicer API for performing this search, it's dreadfully slow on annotation processing. This class will use ClasspathScannerUtils which in turn uses ClassPath to perform the scan.

If matchedClasses is null this will scan org.apache.ambari.server (currently) for any EagerSingleton or StaticallyInject or AmbariService instances.

Parameters:

matchedClasses - the set of previously found classes, or null to invoke scanning.

Returns:

the set of classes that was found.

bindNotificationDispatchers

protected Set<org.springframework.beans.factory.config.BeanDefinition> bindNotificationDispatchers(Set<org.springframework.beans.factory.config.BeanDefinition> beanDefinitions)

Searches for all instances of NotificationDispatcher on the classpath and registers each as a singleton with the DispatchFactory.