/*
 * 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.clerezza.rdf.jena.commons;

import com.hp.hpl.jena.graph.Node;
import org.apache.clerezza.commons.rdf.BlankNode;

/**
 *
 * @author reto
 */
class JenaBNodeWrapper extends BlankNode {

    final Node node;
    
    JenaBNodeWrapper(Node node) {
        if (!node.isBlank()) {
            throw new IllegalArgumentException("must be blank node");
        }
        this.node = node;
    }

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

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 71 * hash + (this.node != null ? this.node.hashCode() : 0);
        return hash;
    }


}
