Resource.java

/*
 * tmdb-java-client - A client to access the TMDB API
 * Copyright © 2024-2025 Andy Miles (andy.miles@amilesend.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.amilesend.tmdb.client.model;

import lombok.Getter;
import lombok.ToString;
import lombok.experimental.SuperBuilder;

import java.util.Objects;

/**
 * Base class for a resource that defines a unique identifier.
 *
 * @param <K> the identifier type
 * @param <T> the type of resource
 */
@SuperBuilder
@Getter
@ToString
public abstract class Resource<K, T extends Resource> {
    /** The resource identifier. */
    private final K id;

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }

        final T that = (T) obj;
        return id == that.getId();
    }

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