PrologCallable.java
/*-
* #%L
* prolobjectlink-jpi
* %%
* Copyright (C) 2020 - 2021 Prolobjectlink Project
* %%
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* of this software and associated documentation files (the "Software"), to deal
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
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*
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* #L%
*/
package io.github.prolobjectlink.prolog;
import java.util.List;
import java.util.concurrent.Callable;
class PrologCallable implements Callable<List<List<Object>>> {
private final PrologTerm[] goals;
private final PrologEngine engine;
private final PrologProvider provider;
PrologCallable(PrologProvider provider, PrologTerm... goals) {
this.engine = provider.newEngine();
this.provider = provider;
this.goals = goals;
}
public List<List<Object>> call() throws Exception {
return engine.query(goals).allResults();
}
public PrologProvider getProvider() {
return provider;
}
}