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Library for connecting to Smartsheet Services

There is a newer version: 3.2.1

/*
 * Copyright (C) 2023 Smartsheet
 *
 * Licensed 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 com.smartsheet.api.models;

/**
 * Represents an object with an ID.
 */
public abstract class IdentifiableModel {
    /** Represents the ID. */
    private T id;

    /**
     * Gets the id.
     *
     * @return the id
     */
    public T getId() {
        return id;
    }

    /**
     * Sets the id.
     *
     * @param id the new id
     */
    public IdentifiableModel setId(T id) {
        this.id = id;
        return this;
    }

    /**
     * Check if the given object equals to this object.
     *
     * @param object the object to compare
     * @return true if given object equals to this object, false otherwise
     */
    @Override
    public boolean equals(Object object) {
        boolean result = false;

        if (object == this) {
            result = true;
        } else if (object != null && object.getClass() == this.getClass() &&
                // If they are both null
                (((IdentifiableModel) object).getId() == this.getId() ||
                // If they are not null but are equal objects.
                ((IdentifiableModel) object).getId() != null && this.getId() != null &&
                ((IdentifiableModel) object).getId().equals(this.getId()))) {
            result = true;
        }

        return result;
    }

    /**
     * Return the hash code of this object.
     *
     * @return the hash code
     */
    @Override
    public int hashCode() {
        int result = 17;
        if (this.id == null) {
            result = super.hashCode();
        } else {
            result = id.toString().hashCode();
        }
        return result;
    }
}