org.glassfish.hk2.utilities

Class GreedyResolver

java.lang.Object

org.glassfish.hk2.utilities.GreedyResolver

All Implemented Interfaces:

JustInTimeInjectionResolver

@Singleton
 @Visibility(value=LOCAL)
public class GreedyResolver
extends Object
implements JustInTimeInjectionResolver

This is a greedy resolve that will add in any class that has failed to be resolved. It uses ServiceLocatorUtilities.addClasses(org.glassfish.hk2.api.ServiceLocator, Class...) in order to add classes, and hence will use the default class analyzer to discover injection points and constructors.

If the injected class is an interface the interface may use the GreedyDefaultImplementation in order to specify the class that should be used when another implementation of this interface cannot be found.

WARNING: This resolve should be used with care as it could cause unexpected class files to be instantiated by hk2

Author:

jwells

Method Summary

Modifier and Type	Method and Description
boolean	justInTimeResolution(Injectee failedInjectionPoint) This method will be called whenever an injection point cannot be resolved.

Methods inherited from class java.lang.Object

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

Method Detail

justInTimeResolution

public boolean justInTimeResolution(Injectee failedInjectionPoint)

Description copied from interface: JustInTimeInjectionResolver

This method will be called whenever an injection point cannot be resolved. If this method adds anything to the configuration it should return true. Otherwise it should return false. The injection point that failed to be resolved is given in failedInjectionPoint.

If this method throws an exception that exception will be added to the set of exceptions in the MultiException that may be thrown from the injection resolver.

This method can be called on multiple threads with different or the same Injectee. Therefore care must be taken in this method to not add the same descriptor more than once

Specified by:

justInTimeResolution in interface JustInTimeInjectionResolver

Parameters:

failedInjectionPoint - The injection point that failed to resolve

Returns:

true if this method has added a descriptor to the ServiceLocator which may be used to resolve the Injectee. False if this method did not add a descriptor to the ServiceLocator that might help resolve the injection point