eu.monnetproject.kap.nlg.Predicate Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of kap.core Show documentation
com.github.monnetproject.kap.core OSGi Bundle from the Monnet Project's kap.project project.
The newest version!
/****************************************************************************
/* Copyright (c) 2011, Monnet Project
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Monnet Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE MONNET PROJECT BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ********************************************************************************/
package eu.monnetproject.kap.nlg;

import java.net.URI;
import java.util.List;

/**
 * An atomic predicate
 * 
 * @author John McCrae
 */
public final class Predicate {
    private final URI predicate;
    private final List arguments;
    private final Modality modality;

    public Predicate(URI predicate, List arguments, Modality modality) {
        this.predicate = predicate;
        this.arguments = arguments;
        this.modality = modality;
    }

    /**
     * The arguments of the predicate
     * @return A (non-null) list
     */
    public List getArguments() {
        return arguments;
    }

    /**
     * Get the modality of the statement
     * @return  The modality
     */
    public Modality getModality() {
        return modality;
    }

    /**
     * The predicate
     * @return The URI indicating the predicate
     */
    public URI getPredicate() {
        return predicate;
    }

    @Override
    public String toString() {
        return "Predicate{" + "predicate=" + predicate + ", arguments=" + arguments + ", modality=" + modality + '}';
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final Predicate other = (Predicate) obj;
        if (this.predicate != other.predicate && (this.predicate == null || !this.predicate.equals(other.predicate))) {
            return false;
        }
        if (this.arguments != other.arguments && (this.arguments == null || !this.arguments.equals(other.arguments))) {
            return false;
        }
        if (this.modality != other.modality && (this.modality == null || !this.modality.equals(other.modality))) {
            return false;
        }
        return true;
    }

    @Override
    public int hashCode() {
        int hash = 5;
        hash = 89 * hash + (this.predicate != null ? this.predicate.hashCode() : 0);
        hash = 89 * hash + (this.arguments != null ? this.arguments.hashCode() : 0);
        hash = 89 * hash + (this.modality != null ? this.modality.hashCode() : 0);
        return hash;
    }
    
    
}