Module org.glassfish.hk2.locator

Package org.jvnet.hk2.internal

Class OptionalActiveDescriptor<T>

java.lang.Object

org.glassfish.hk2.utilities.DescriptorImpl

org.glassfish.hk2.utilities.AbstractActiveDescriptor<Optional<T>>

org.jvnet.hk2.internal.OptionalActiveDescriptor<T>

All Implemented Interfaces:

Externalizable, Serializable, ActiveDescriptor<Optional<T>>, Descriptor, SingleCache<Optional<T>>

public class OptionalActiveDescriptor<T>
extends AbstractActiveDescriptor<Optional<T>>

Descriptor for Optional to allow for injection of a service if it exists or else Optional.EMPTY. It will also allow for injection of an Optional directly as well.

Author:

jonathan coustick

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
OptionalActiveDescriptor()	For serialization

Method Summary

Modifier and Type	Method	Description
Optional<T>	create(ServiceHandle<?> root)
Class<?>	getImplementationClass()
Type	getImplementationType()

Methods inherited from class org.glassfish.hk2.utilities.AbstractActiveDescriptor

addContractType, addQualifierAnnotation, dispose, equals, getCache, getContractTypes, getFactoryLocatorId, getFactoryServiceId, getInjectees, getQualifierAnnotations, getScopeAnnotation, getScopeAsAnnotation, hashCode, isCacheSet, isReified, releaseCache, removeContractType, removeQualifierAnnotation, setCache, setFactoryId, setImplementationType, setName, setReified, setScopeAnnotation, setScopeAsAnnotation

Methods inherited from class org.glassfish.hk2.utilities.DescriptorImpl

addAdvertisedContract, addMetadata, addMetadata, addQualifier, clearMetadata, descriptorEquals, getAdvertisedContracts, getClassAnalysisName, getDescriptorType, getDescriptorVisibility, getImplementation, getLoader, getLocatorId, getMetadata, getName, getQualifiers, getRanking, getScope, getServiceId, isProxiable, isProxyForSameScope, pretty, readExternal, readObject, removeAdvertisedContract, removeAllMetadata, removeMetadata, removeQualifier, setClassAnalysisName, setDescriptorType, setDescriptorVisibility, setImplementation, setLoader, setLocatorId, setMetadata, setProxiable, setProxyForSameScope, setRanking, setScope, setServiceId, toString, writeExternal, writeObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.glassfish.hk2.api.Descriptor

getAdvertisedContracts, getClassAnalysisName, getDescriptorType, getDescriptorVisibility, getImplementation, getLoader, getLocatorId, getMetadata, getName, getQualifiers, getRanking, getScope, getServiceId, isProxiable, isProxyForSameScope, setRanking

Constructor Details

OptionalActiveDescriptor

public OptionalActiveDescriptor()

For serialization

Method Details

getImplementationClass

public Class<?> getImplementationClass()

getImplementationType

public Type getImplementationType()

create

public Optional<T> create(ServiceHandle<?> root)