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package org.glassfish.jersey.internal.inject;

import java.util.function.Consumer;

/**
 * The descriptor holder for an externally provided DI providers. Using this interface DI provider is able to provider his own
 * descriptor which can be used and returned to the DI provider in further processing.
 * 

* This is useful in the case of caching where an algorithm is able to store and subsequently provide for an injection the already * resolved descriptor of the same value. */ public interface ForeignDescriptor { /** * Returns an object that can be cast on the side of DI provider to his descriptor. * * @return DI provider's descriptor. */ Object get(); /** * Disposes this instance. All the PerLookup objects that were created for this instance will be destroyed after this * object has been destroyed. * * @param instance The instance to destroy. */ void dispose(Object instance); /** * Wraps incoming descriptor instance and provides a default implementation of {@link ForeignDescriptor}. * * @param descriptor incoming foreign descriptor. * @return wrapped foreign descriptor. */ static ForeignDescriptor wrap(Object descriptor) { return new ForeignDescriptorImpl(descriptor); } /** * Wraps incoming descriptor instance and provides a default implementation of {@link ForeignDescriptor} along with a * {@link Consumer} for a disposing an instance created using a given descriptor. * * @param descriptor incoming foreign descriptor. * @param disposeInstance consumer which is able to dispose an instance created with the given descriptor. * @return wrapped foreign descriptor. */ static ForeignDescriptor wrap(Object descriptor, Consumer disposeInstance) { return new ForeignDescriptorImpl(descriptor, disposeInstance); } }