1 /*- 2 * #%L 3 * prolobjectlink-jpi 4 * %% 5 * Copyright (C) 2020 - 2021 Prolobjectlink Project 6 * %% 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 * #L% 25 */ 26 package io.github.prolobjectlink.prolog; 27 28 import java.util.List; 29 import java.util.concurrent.Callable; 30 31 class PrologCallable implements Callable<List<List<Object>>> { 32 33 private final PrologTerm[] goals; 34 private final PrologEngine engine; 35 private final PrologProvider provider; 36 37 PrologCallable(PrologProvider provider, PrologTerm... goals) { 38 this.engine = provider.newEngine(); 39 this.provider = provider; 40 this.goals = goals; 41 } 42 43 public List<List<Object>> call() throws Exception { 44 return engine.query(goals).allResults(); 45 } 46 47 public PrologProvider getProvider() { 48 return provider; 49 } 50 51 }