com.vii.brillien.kernel.axiom.atomic.Context Maven / Gradle / Ivy
/*
* Copyright (c) 2011 Imre Fazekas.
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* Neither the name of the Brillien nor the names of its
* terms and concepts may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.vii.brillien.kernel.axiom.atomic;
import com.vii.brillien.kernel.BrillienException;
import com.vii.brillien.kernel.axiom.atomic.shaper.Filter;
import com.vii.brillien.kernel.axiom.atomic.shaper.Shifter;
import com.vii.brillien.kernel.axiom.transport.Communication;
/**
* Context is a special Unit type providing a metalevel collapsing set functionality extended by sharing services.
*/
public interface Context extends Unit{
/**
* Shares an object with the given key
* @param p component reference who want to share
* @param key unique key for the sharing
* @param object shared object
* @param shared content's type
*/
void registerSharing( Presence p, Object key, T object );
/**
* Removes a shared content
* @param p component reference who want to share
* @param key unique key for the sharing
*/
void removeSharing( Presence p, Object key );
/**
* Decides whether a sharing is available in this flow. This may induce a searching in the parent flows too.
* @param p searcher component reference
* @param key key of the sharing that should be retrieved
* @return availability of a sharing by a given name
*/
boolean hasSharing( Presence p, Object key );
/**
* Getter method to access a sharing by a given name
* @param p accessor Presence reference
* @param key key of the shared content
* @param shared content
* @return shared content's type
*/
S getSharing( Presence p, Object key );
/**
* Transforms the given exception according to the filter-shifter mappings available in this context
*/
BrillienException levelException( BrillienException be );
/**
* Gets the proper Shifter to the given BrillienException instance if exists
*/
Shifter getShifter( BrillienException be );
/**
* Adds a Filter-Shifter mapping to the given context
*/
void addExceptionLeveling( Filter f, Shifter s );
/**
* Removes a Filter-Shifter mapping by the given filter
*/
void removeExceptionLeveling( Filter f );
/**
* Clears all Filter-Shifter mappings from the given context
*/
void clearExceptionLeveling( );
}