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89 lines
2.5 KiB
89 lines
2.5 KiB
/*
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* This file is part of a Java port of the program ltl2dstar
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* (http://www.ltl2dstar.de/) for PRISM (http://www.prismmodelchecker.org/)
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* Copyright (C) 2005-2007 Joachim Klein <j.klein@ltl2dstar.de>
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* Copyright (c) 2007 Carlos Bederian
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package jltl2dstar;
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import java.util.HashMap;
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/** @file
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* Provides StateMapper
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*/
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/** A mapper from KeyType to StateType, ResultType can be used as an alternative key type. */
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public class StateMapper <R extends NBA2DAResult<K>, K extends NBA2DAState, S extends DA_State> implements StateMapperInterface<R,K,S> {
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/** The hash map from StateType to MappedStateType */
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private HashMap<K,S> _map;
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/** The number of mappings */
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private int _count;
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/** Constructor. */
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public StateMapper() {
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_count = 0;
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_map = new HashMap<K,S>();
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}
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/** Clear the mapping */
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public void clear() {
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_map.clear();
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_count = 0;
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}
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/** Add a mapping.
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* @param key the key
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* @param state the state
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*/
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// public StateType add(KeyType key, StateType state) {
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public void add(K key, S state) {
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// System.out.println("Adding hash " + key.hashCode());
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if (!_map.containsKey(key))
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++_count;
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_map.put(key, state);
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// return state; // different semantics than java hashmaps
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// System.out.println("Item count: " + _count);
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}
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/** Find a mapping.
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* @param key the key
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* @return the state (or the NULL pointer if not found)
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*/
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public S find(K key) {
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// System.out.println("Looking for hash " + key.hashCode());
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// if (_map.containsKey(key)) System.out.println("Match");
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// else System.out.println("Miss");
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return _map.get(key);
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}
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/** Find a mapping using ResultType.
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* @param result
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* @return the state (or the NULL pointer if not found)
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*/
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public S find(R result) {
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return find(result.getState());
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}
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/** Get number of mappings.
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* @return the number of mappings
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*/
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public int size() {
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return _count;
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}
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}
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