org.apache.felix.dm

Interface AbstractComponent

All Known Subinterfaces:

AdapterComponent, AspectComponent, BundleComponent, Component<T>, ComponentContext<T>, FactoryComponent, ResourceComponent

public interface AbstractComponent

Base interface for a Dependency Manager component.

Method Summary

Modifier and Type	Method and Description
ComponentDeclaration	getComponentDeclaration() Returns the component description (dependencies, service provided, etc ...).
DependencyManager	getDependencyManager() Returns the dependency manager associated with this component.
<U> U	getInstance() Returns the instance that make up this component.
java.lang.Object[]	getInstances() Returns the composition instances that make up this component, or just the component instance if it does not have a composition, or an empty array if the component has not even been instantiated.
<K,V> java.util.Dictionary<K,V>	getServiceProperties() Returns the component service properties.

Method Detail

getInstance

<U> U getInstance()

Returns the instance that make up this component. If the component has a composition of instances, then the first instance of the composition is returned. Null is returned if the component has not even been instantiated.

Returns:

the component instances

getInstances

java.lang.Object[] getInstances()

Returns the composition instances that make up this component, or just the component instance if it does not have a composition, or an empty array if the component has not even been instantiated.

Returns:

the component instances

getServiceProperties

<K,V> java.util.Dictionary<K,V> getServiceProperties()

Returns the component service properties. The returned dictionary is either empty if no service properties were defined for this component, or copy of the existing service properties associated with this component.

Returns:

a copy of the service properties associated to this component or an empty dictionary if no service properties were defined for this component.

getDependencyManager

DependencyManager getDependencyManager()

Returns the dependency manager associated with this component.

Returns:

the dependency manager associated with this component.

getComponentDeclaration

ComponentDeclaration getComponentDeclaration()

Returns the component description (dependencies, service provided, etc ...).

Returns:

the component description (dependencies, service provided, etc ...).