/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.query.spatial;

import org.apache.jena.graph.Node ;

public class SpatialPredicatePair {

	private Node latitudePredicate;
	private Node longitudePredicate;

	public SpatialPredicatePair(Node latitudePredicate, Node longitudePredicate) {
		super();
		this.latitudePredicate = latitudePredicate;
		this.longitudePredicate = longitudePredicate;
	}

	public Node getLatitudePredicate() {
		return latitudePredicate;
	}

	public Node getLongitudePredicate() {
		return longitudePredicate;
	}

	@Override
	public int hashCode() {
		return latitudePredicate.hashCode() * 7 + longitudePredicate.hashCode()
				* 13;
	}

	@Override
	public boolean equals(Object otherObject) {
		// a quick test to see if the objects are identical
		if (this == otherObject)
			return true;

		// must return false if the explicit parameter is null
		if (otherObject == null)
			return false;

		// if the classes don't match, they can't be equal
		if (getClass() != otherObject.getClass())
			return false;

		// now we know otherObject is a non-null Employee
		SpatialPredicatePair other = (SpatialPredicatePair) otherObject;

		// test whether the fields have identical values
		return latitudePredicate.equals(other.latitudePredicate)
				&& longitudePredicate == other.longitudePredicate;
	}
	
	@Override
	public String toString(){
		return "[ " + latitudePredicate.toString() + ", " + longitudePredicate.toString() + " ]";
	}
}