diff options
Diffstat (limited to 'utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/term/Constant.java')
| -rw-r--r-- | utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/term/Constant.java | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/term/Constant.java b/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/term/Constant.java new file mode 100644 index 00000000000..1427fa29aac --- /dev/null +++ b/utils/PDDLtoSANetTranslator/PDDLParser/src/pddl4j/exp/term/Constant.java @@ -0,0 +1,168 @@ +/* + * Copyright Dept. of Mathematics & Computer Science Univ. Paris-Descartes + * + * This software is governed by the CeCILL license under French law and + * abiding by the rules of distribution of free software. You can use, + * modify and/ or redistribute the software under the terms of the CeCILL + * license as circulated by CEA, CNRS and INRIA at the following URL + * "http://www.cecill.info". + * + * As a counterpart to the access to the source code and rights to copy, + * modify and redistribute granted by the license, users are provided only + * with a limited warranty and the software's author, the holder of the + * economic rights, and the successive licensors have only limited + * liability. + * + * In this respect, the user's attention is drawn to the risks associated + * with loading, using, modifying and/or developing or reproducing the + * software by the user in light of its specific status of free software, + * that may mean that it is complicated to manipulate, and that also + * therefore means that it is reserved for developers and experienced + * professionals having in-depth computer knowledge. Users are therefore + * encouraged to load and test the software's suitability as regards their + * requirements in conditions enabling the security of their systems and/or + * data to be ensured and, more generally, to use and operate it in the + * same conditions as regards security. + * + * The fact that you are presently reading this means that you have had + * knowledge of the CeCILL license and that you accept its terms. + */ + +package pddl4j.exp.term; + +import java.util.LinkedHashMap; +import java.util.Map; + +import pddl4j.exp.fexp.FExp; +import pddl4j.exp.type.Type; +import pddl4j.exp.type.TypeSet; + +/** + * This class implements a constant. + * + * @author Damien Pellier + * @version 1.0 + */ +public final class Constant extends FExp implements Comparable<Constant> { + + /** + * The serial version id of the class. + */ + private static final long serialVersionUID = -8580834206648477520L; + + /** + * Creates a new constant of type object with a specified image. + * + * @param image the image of the constant. + * @throws NullPointerException if <code>image == null</code>. + */ + public Constant(String image) { + super(TermID.CONSTANT, image); + } + + /** + * Creates a new constant of type object with a specified image. + * + * @param image the image of the constant. + * @param type the type of this constant. + * @throws NullPointerException if <code>image == null</code>. + */ + public Constant(String image, Type type) { + super(TermID.CONSTANT, image, new TypeSet(type)); + } + + /** + * Creates a new constant with a specified image and type. + * + * @param image the image of the constant. + * @param type the type of this constant. + * @throws NullPointerException if <code>image == null</code> or + * <code>type == null</code>. + */ + public Constant(String image, TypeSet type) { + super(TermID.CONSTANT, image, type); + } + + /** + * Standardizes all occurrences of the variables that occur in this + * term. Remember that free variables are existentially quantified. + * + * @return a standardized copy of this expression. + */ + public Constant standardize() { + return this.standardize(new LinkedHashMap<String, String>()); + } + + /** + * Standardizes all occurrences of the variables that occur in this + * term. The map argument is used to store the variable already + * standardized. The bound argument is used to store the bound variables. a + * standardized copy of this expression. Remember that free variables are + * existentially quantified. + * + * @param images the object that maps old variable images to the standardize + * image. + * @return a standardized copy of this term. + * @throws NullPointerException if + * <code>images == null || bound == null</code>. + */ + public Constant standardize(Map<String, String> images) { + return (Constant) super.standardize(images); + } + + /** + * Returns a string representation of this constant. + * + * @return a string representation of this constant. + */ + public String toString() { + return this.getImage(); + } + + /** + * Returns a typed string representation of this constant. + * + * @return a typed string representation of this constant. + */ + public String toTypedString() { + return this.getImage() + " - " + this.getTypeSet(); + } + + /** + * Compares this constant with the specified constant for order. Returns a + * negative integer, zero, or a positive integer as this constant is less + * than, equal to, or greater than the specified constant according to the + * lexicographic order. + * + * @param cst the constant to be compared. + * @return a negative integer, zero, or a positive integer as this number is + * less than, equal to, or greater than the specified object. + * @throws NullPointerException if <code>cst == null</code>. + */ + public int compareTo(Constant cst) { + return this.getImage().compareTo(cst.getImage()); + } + + /** + * Sets a new type of this constant. + * + * @param type the type to set. + * @throws NullPointerException if <code>type == null</code>. + */ + public void setTypeSet(TypeSet type) { + super.setTypeSet(type); + } + + /** + * Creates and returns a copy of this expression. + * + * @return a clone of this expression instance. + * @see pddl4j.exp.Exp#clone() + */ + public Constant clone() { + return (Constant) super.clone(); + } + + + +} |