parameter-object/src/main/java/com/iluwatar/parameter/object/ParameterObject.java - master - githubmirror/java-design-patterns

parameter-object/src/main/java/com/iluwatar/parameter/object/ParameterObject.java
92 строки3 KB
Ilkka Seppälä
deps: Refactor dependencies (#3224)
29 мар 2025, 20:34
29 мар 2025, 20:340ca162a
/*
 * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
 *
 * The MIT License
 * Copyright © 2014-2022 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.iluwatar.parameter.object;

import lombok.Getter;
import lombok.Setter;

/** ParameterObject. */
@Getter
@Setter
public class ParameterObject {

  /** Default values are defined here. */
  public static final String DEFAULT_SORT_BY = "price";

  public static final SortOrder DEFAULT_SORT_ORDER = SortOrder.ASC;

  private String type;

  /** Default values are assigned here. */
  private String sortBy = DEFAULT_SORT_BY;

  private SortOrder sortOrder = DEFAULT_SORT_ORDER;

  /** Overriding default values on object creation only when builder object has a valid value. */
  private ParameterObject(Builder builder) {
    setType(builder.type);
    setSortBy(builder.sortBy != null && !builder.sortBy.isBlank() ? builder.sortBy : sortBy);
    setSortOrder(builder.sortOrder != null ? builder.sortOrder : sortOrder);
  }

  public static Builder newBuilder() {
    return new Builder();
  }

  @Override
  public String toString() {
    return String.format(
        "ParameterObject[type='%s', sortBy='%s', sortOrder='%s']", type, sortBy, sortOrder);
  }

  /** Builder for ParameterObject. */
  public static final class Builder {

    private String type;
    private String sortBy;
    private SortOrder sortOrder;

    private Builder() {}

    public Builder withType(String type) {
      this.type = type;
      return this;
    }

    public Builder sortBy(String sortBy) {
      this.sortBy = sortBy;
      return this;
    }

    public Builder sortOrder(SortOrder sortOrder) {
      this.sortOrder = sortOrder;
      return this;
    }

    public ParameterObject build() {
      return new ParameterObject(this);
    }
  }
}