hugegraph-client/src/main/java/org/apache/hugegraph/structure/Element.java

/*
 * 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.hugegraph.structure;

import java.util.Objects;

public abstract class Element {

    public abstract String type();

    public abstract Object id();

    @Override
    public int hashCode() {
        return this.id().hashCode();
    }

    @Override
    public boolean equals(Object other) {
        if (this == other) {
            return true;
        }
        if (other == null || this.getClass() != other.getClass()) {
            return false;
        }
        return Objects.equals(this.id(), ((Element) other).id());
    }

    @Override
    public String toString() {
        return String.format("%s(type %s)", this.id(), this.type());
    }
}