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78 lines
2.0 KiB
78 lines
2.0 KiB
//==============================================================================
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//
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// Copyright (c) 2002-
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// Authors:
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// * Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM 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 PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package pta;
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public class DBMFactory implements ZoneFactory
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{
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/* Basic zone creation */
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/**
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* All clocks = 0
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*/
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public DBM createZero(PTA pta)
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{
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int i, j, n;
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DBM dbm = new DBM(pta);
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n = pta.numClocks;
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for (i = 0; i < n + 1; i++) {
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for (j = 0; j < n + 1; j++) {
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dbm.d[i][j] = DB.LEQ_ZERO;
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}
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}
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return dbm;
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}
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/**
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* All clocks any (non-negative) value
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*/
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public DBM createTrue(PTA pta)
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{
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int i, j, n;
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DBM dbm = new DBM(pta);
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n = pta.numClocks;
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for (i = 0; i < n + 1; i++) {
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for (j = 0; j < n + 1; j++) {
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if (i == j) dbm.d[i][j] = DB.LEQ_ZERO;
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else if (i == 0) dbm.d[i][j] = DB.LEQ_ZERO;
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else dbm.d[i][j] = DB.INFTY;
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}
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}
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return dbm;
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}
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/**
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* Zone defined by set of constraints
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*/
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public DBM createFromConstraints(PTA pta, Iterable<Constraint> constrs)
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{
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DBM dbm = createTrue(pta);
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for (Constraint c : constrs) {
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dbm.addConstraint(c);
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}
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return dbm;
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}
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}
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