content: /*
   * 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.ambari.server.orm.entities;
  
  import jakarta.persistence.Column;
  import jakarta.persistence.Entity;
  import jakarta.persistence.GeneratedValue;
  import jakarta.persistence.GenerationType;
  import jakarta.persistence.Id;
  import jakarta.persistence.NamedQueries;
  import jakarta.persistence.NamedQuery;
  import jakarta.persistence.Table;
  import jakarta.persistence.TableGenerator;
  import jakarta.persistence.UniqueConstraint;
  
  /**
   * The {@link ExtensionEntity} class is used to model an extension to the stack.
   *
   * An extension version is like a stack version but it contains custom services.  Linking an extension
   * version to the current stack version allows the cluster to install the custom services contained in
   * the extension version.
   */
  @Entity
  @Table(name = "extension", uniqueConstraints = @UniqueConstraint(columnNames = {
      "extension_name", "extension_version" }))
  @TableGenerator(name = "extension_id_generator", table = "ambari_sequences", pkColumnName = "sequence_name", valueColumnName = "sequence_value", pkColumnValue = "extension_id_seq", initialValue = 0)
  @NamedQueries({
      @NamedQuery(name = "ExtensionEntity.findAll", query = "SELECT extension FROM ExtensionEntity extension"),
      @NamedQuery(name = "ExtensionEntity.findByNameAndVersion", query = "SELECT extension FROM ExtensionEntity extension WHERE extension.extensionName = :extensionName AND extension.extensionVersion = :extensionVersion") })
  public class ExtensionEntity {
  
    @Id
    @GeneratedValue(strategy = GenerationType.TABLE, generator = "extension_id_generator")
    @Column(name = "extension_id", nullable = false, updatable = false)
    private Long extensionId;
  
    @Column(name = "extension_name", length = 255, nullable = false)
    private String extensionName;
  
    @Column(name = "extension_version", length = 255, nullable = false)
    private String extensionVersion;
  
    /**
     * Constructor.
     */
    public ExtensionEntity() {
    }
  
    /**
     * Gets the unique identifier for this extension.
     *
     * @return the ID.
     */
    public Long getExtensionId() {
      return extensionId;
    }
  
    /**
     * Gets the name of the extension.
     *
     * @return the name of the extension (never {@code null}).
     */
    public String getExtensionName() {
      return extensionName;
    }
  
    /**
     * Sets the name of the extension.
     *
     * @param extensionName
     *          the extension name (not {@code null}).
     */
    public void setExtensionName(String extensionName) {
      this.extensionName = extensionName;
    }
  
    /**
     * Gets the version of the extension.
     *
     * @return the extension version (never {@code null}).
     */
    public String getExtensionVersion() {
      return extensionVersion;
    }
  
    /**
     * Sets the version of the extension.
     *
     * @param extensionVersion
     *          the extension version (not {@code null}).
     */
    public void setExtensionVersion(String extensionVersion) {
      this.extensionVersion = extensionVersion;
    }
  
    /**
     *
     */
    @Override
    public boolean equals(Object object) {
      if (this == object) {
        return true;
      }
  
      if (object == null || getClass() != object.getClass()) {
        return false;
      }
  
      ExtensionEntity that = (ExtensionEntity) object;
  
      if (extensionId != null ? !extensionId.equals(that.extensionId) : that.extensionId != null) {
        return false;
      }
  
      return true;
    }
  
    /**
     *
     */
    @Override
    public int hashCode() {
      int result = null != extensionId ? extensionId.hashCode() : 0;
      return result;
    }
  
    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
      StringBuilder buffer = new StringBuilder();
      buffer.append(getClass().getSimpleName());
      buffer.append("{");
      buffer.append("id=").append(extensionId);
      buffer.append(", name=").append(extensionName);
      buffer.append(", version=").append(extensionVersion);
      buffer.append("}");
      return buffer.toString();
    }
  }
  