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/*
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 *
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 *
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package org.glassfish.hk2.api;

/**
 * This class is used to add {@link Descriptor}s to a {@link ServiceLocator}
 * instance.  No operation performed on this object will be reflected
 * in the {@link ServiceLocator} until the commit method is called.
 * 
 * @author jwells
 *
 */
public interface DynamicConfiguration {
    /**
     * This method will bind the given descriptor to this Module.
     * If the descriptor given is not an ActiveDescriptor then a
     * non-reified ActiveDescriptor will be returned with the system
     * provided fields set.  If the descriptor given is a reified
     * ActiveDescriptor then the descriptor returned will be a
     * reified ActiveDescriptor that takes all values except for the
     * id from the given descriptor.  A deep copy will be made
     * of the incoming descriptor
     * 
     * @param key May not be null.  Will be used to derive the various
     * key fields associated with the given provider
     * @return The entry as added to the service registry, with fields
     * of the Descriptor filled in by the system as appropriate
     * @throws IllegalArgumentException if there is an error in the key
     */
    public  ActiveDescriptor bind(Descriptor key);
    
    /**
     * This method will bind the given descriptor to this Module.
     * If the descriptor given is not an ActiveDescriptor then a
     * non-reified ActiveDescriptor will be returned with the system
     * provided fields set.  If the descriptor given is a reified
     * ActiveDescriptor then the descriptor returned will be a
     * reified ActiveDescriptor that takes all values except for the
     * id from the given descriptor.
     * 
     * @param key May not be null.  Will be used to derive the various
     * key fields associated with the given provider
     * @param requiresDeepCopy If true a deep copy will be made of the
     * key.  If false then the Descriptor will be used as is, and it
     * is the responsibility of the caller to ensure that the fields
     * of the Descriptor never change (with the exception of any
     * writeable fields, such as ranking)
     * @return The entry as added to the service registry, with fields
     * of the Descriptor filled in by the system as appropriate
     * @throws IllegalArgumentException if there is an error in the key
     */
    public  ActiveDescriptor bind(Descriptor key, boolean requiresDeepCopy);
    
    /**
     * This method will bind the descriptors found in the
     * {@link FactoryDescriptors}.  This method will first
     * validate the descriptors from the {@link FactoryDescriptors}
     * and then simply bind them into this configuration as
     * two independent descriptors.  A deep copy will be made
     * of both descriptors
     * 
     * @param factoryDescriptors A description of a factory service
     * and the type the factory service provides.  May not be null
     * @return The descriptors returned from this object may be cast
     * to ActiveDescriptor and will contain all the fields of the descriptors
     * filled in by the system 
     * @throws IllegalArgumentException if there is an error in the input parameter
     */
    public FactoryDescriptors bind(FactoryDescriptors factoryDescriptors);
    
    /**
     * This method will bind the descriptors found in the
     * {@link FactoryDescriptors}.  This method will first
     * validate the descriptors from the {@link FactoryDescriptors}
     * and then simply bind them into this configuration as
     * two independent descriptors.  A deep copy will be made
     * of both descriptors
     * 
     * @param factoryDescriptors A description of a factory service
     * and the type the factory service provides.  May not be null
     * @param requiresDeepCopy If true a deep copy will be made of the
     * key.  If false then the Descriptor will be used as is, and it
     * is the responsibility of the caller to ensure that the fields
     * of the Descriptor never change (with the exception of any
     * writeable fields, such as ranking)
     * @return The descriptors returned from this object may be cast
     * to ActiveDescriptor and will contain all the fields of the descriptors
     * filled in by the system 
     * @throws IllegalArgumentException if there is an error in the input parameter
     */
    public FactoryDescriptors bind(FactoryDescriptors factoryDescriptors, boolean requiresDeepCopy);
    
    /**
     * This allows third party systems to add reified active descriptors to the system.
     * The active descriptor given must be fully reified (isReified must return true) and
     * the create and destroy methods must be implemented.  A deep copy will
     * be made of the descriptor
     * 
     * @param activeDescriptor The reified active descriptor to be added to the system.  The
     * system will not attempt to reify this descriptor itself
     * @return The entry as added to the service registry, with fields
     * of the Descriptor filled in by the system as appropriate
     * @throws IllegalArgumentException if the descriptor is not reified
     */
    public  ActiveDescriptor addActiveDescriptor(ActiveDescriptor activeDescriptor)
            throws IllegalArgumentException;
    
    /**
     * This allows third party systems to add reified active descriptors to the system.
     * The active descriptor given must be fully reified (isReified must return true) and
     * the create and destroy methods must be implemented.  A deep copy will
     * be made of the descriptor
     * 
     * @param activeDescriptor The reified active descriptor to be added to the system.  The
     * system will not attempt to reify this descriptor itself
     * @param requiresDeepCopy If true a deep copy will be made of the
     * key.  If false then the Descriptor will be used as is, and it
     * is the responsibility of the caller to ensure that the fields
     * of the Descriptor never change (with the exception of any
     * writeable fields, such as ranking)
     * @return The entry as added to the service registry, with fields
     * of the Descriptor filled in by the system as appropriate
     * @throws IllegalArgumentException if the descriptor is not reified
     */
    public  ActiveDescriptor addActiveDescriptor(ActiveDescriptor activeDescriptor, boolean requiresDeepCopy)
            throws IllegalArgumentException;
    
    /**
     * This adds an active descriptor to the system based completely on the analysis
     * of the given class.  The class itself and all interfaces marked contract will
     * be in the list of advertised services.  The scope and qualifiers will be taken
     * from the annotations on the class.
     * 
     * @param rawClass The class to analyze, must not be null 
     * @return The active (reified) descriptor that has been added to the system, with
     * all fields filled in based on the rawClass
     * @throws MultiException If this class cannot be a service
     * @throws IllegalArgumentException if rawClass is null
     */
    public  ActiveDescriptor addActiveDescriptor(Class rawClass)
            throws MultiException, IllegalArgumentException;
    
    /**
     * This filter will added to the list of filters in this Configuration that will
     * determine which Descriptors will be removed from the system.  Only services directly
     * from this Configuration objects' associated ServiceLocator will be given to this Filter
     * (it will not be given descriptors from the ServiceLocators parent).  The descriptors passed
     * into this filter may be cast to {@link ActiveDescriptor}.  The descriptors passed into this
     * filter may or may not have been reified.  This filter should not reify passed in descriptors.
     * 

* And descriptor for which this filter returns true will be removed from the * {@link ServiceLocator} prior to any additions that are performed with this * Configuration object. Hence a Configuration can remove and add a descriptor of the * same type in one commit. *

* In order to unbind a filter the caller of commit must pass the LOOKUP validators and the * UNBIND validators. * * @param unbindFilter This filter will be added to the list of filters that this * configuration object will use to determine which descriptors to unbind from the system. * May not be null * @throws IllegalArgumentException if unbindFilter is null */ public void addUnbindFilter(Filter unbindFilter) throws IllegalArgumentException; /** * This causes the configuration to get committed. This * method may only be called once * * @throws MultiException If errors were found in the commit process * @throws IllegalStateException if this method was called more than once */ public void commit() throws MultiException; }





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