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//==============================================================================
//
// Copyright (c) 2002-
// Authors:
// * Mateusz Ujma <mateusz.ujma@cs.ox.ac.uk> (University of Oxford)
// * Dave Parker <d.a.parker@cs.bham.ac.uk> (University of Birmingham/Oxford)
//
//------------------------------------------------------------------------------
//
// This file is part of PRISM.
//
// PRISM is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// PRISM is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with PRISM; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
//==============================================================================
package explicit;
import java.util.*;
/**
* Interface for storing a set of objects of type T.
* Typically used for storing states during reachability.
*/
public interface StateStorage<T>
{
public int get(T t);
public boolean add(T state);
public void clear();
public boolean contains(T state);
public int getIndexOfLastAdd();
public boolean isEmpty();
/**
* Get the number of objects stored in the set.
*/
public int size();
/**
* Get access to the underlying set of map entries.
*/
public Set<Map.Entry<T, Integer>> getEntrySet();
/**
* Create an ArrayList of the states, ordered by index.
*/
public ArrayList<T> toArrayList();
/**
* Create an ArrayList of the states, ordered by index, storing in the passed in list.
* @param list An empty ArrayList in which to store the result.
*/
public void toArrayList(ArrayList<T> list);
/**
* Create an ArrayList of the states, ordered by permuted index.
* Index in new list is permut[old_index].
* @param permut Permutation to apply
*/
public ArrayList<T> toPermutedArrayList(int permut[]);
/**
* Create an ArrayList of the states, ordered by permuted index, storing in the passed in list.
* Index in new list is permut[old_index].
* @param permut Permutation to apply
* @param list An empty ArrayList in which to store the result.
*/
public void toPermutedArrayList(int permut[], ArrayList<T> list);
/**
* Build sort permutation. Assuming this was built as a sorted set,
* this returns a permutation (integer array) mapping current indices
* to new indices under the sorting order.
*/
public int[] buildSortingPermutation();
}