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.QueryHint;
  import jakarta.persistence.Table;
  import jakarta.persistence.TableGenerator;
  import jakarta.persistence.UniqueConstraint;
  
  import org.eclipse.persistence.config.HintValues;
  import org.eclipse.persistence.config.QueryHints;
  
  /**
   * The {@link StackEntity} class is used to model an alert that needs
   * to run in the system. Each received alert from an agent will essentially be
   * an instance of this template.
   */
  @Entity
  @Table(name = "stack", uniqueConstraints = @UniqueConstraint(columnNames = {
      "stack_name", "stack_version" }))
  @TableGenerator(name = "stack_id_generator", table = "ambari_sequences", pkColumnName = "sequence_name", valueColumnName = "sequence_value", pkColumnValue = "stack_id_seq", initialValue = 0)
  @NamedQueries({
      @NamedQuery(name = "StackEntity.findByMpack", query = "SELECT stack FROM StackEntity stack where stack.mpackId = :mpackId"),
      @NamedQuery(
        name = "StackEntity.findAll",
        query = "SELECT stack FROM StackEntity stack"
      ),
      @NamedQuery(
        name = "StackEntity.findByNameAndVersion",
        query = "SELECT stack FROM StackEntity stack WHERE stack.stackName = :stackName AND stack.stackVersion = :stackVersion",
        hints = {
          @QueryHint(name = QueryHints.QUERY_RESULTS_CACHE, value = HintValues.TRUE),
          @QueryHint(name = QueryHints.QUERY_RESULTS_CACHE_SIZE, value = "100")
        }
      )
  })
  public class StackEntity {
  
    @Id
    @GeneratedValue(strategy = GenerationType.TABLE, generator = "stack_id_generator")
    @Column(name = "stack_id", nullable = false, updatable = false)
    private Long stackId;
  
    @Column(name = "stack_name", length = 255, nullable = false)
    private String stackName;
  
    @Column(name = "stack_version", length = 255, nullable = false)
    private String stackVersion;
  
    @Column(name = "mpack_id")
    private Long mpackId;
  
    public Long getMpackId() {
      return mpackId;
    }
  
    public void setMpackId(Long mpackId) {
      this.mpackId = mpackId;
    }
  
  
    /**
     * Constructor.
     */
    public StackEntity() {
    }
  
    /**
     * Gets the unique identifier for this stack.
     *
     * @return the ID.
     */
    public Long getStackId() {
      return stackId;
    }
  
    /**
     * Gets the name of the stack, such as "HDP".
     *
     * @return the name of the stack (never {@code null}).
     */
    public String getStackName() {
      return stackName;
    }
  
    /**
     * Sets the name of the stack, such as "HDP".
     *
     * @param stackName
     *          the stack name (not {@code null}).
     */
    public void setStackName(String stackName) {
      this.stackName = stackName;
    }
  
    /**
     * Gets the version of the stack, such as "2.2".
     *
     * @return the stack version (never {@code null}).
     */
    public String getStackVersion() {
      return stackVersion;
    }
  
    /**
     * Sets the version of the stack, such as "2.2".
     *
     * @param stackVersion
     *          the stack version (not {@code null}).
     */
    public void setStackVersion(String stackVersion) {
      this.stackVersion = stackVersion;
    }
  
    /**
     *
     */
    @Override
    public boolean equals(Object object) {
      if (this == object) {
        return true;
      }
  
      if (object == null || getClass() != object.getClass()) {
        return false;
      }
  
      StackEntity that = (StackEntity) object;
  
      if (stackId != null ? !stackId.equals(that.stackId) : that.stackId != null) {
        return false;
      }
  
      return true;
    }
  
    /**
     *
     */
    @Override
    public int hashCode() {
      int result = null != stackId ? stackId.hashCode() : 0;
      return result;
    }
  
    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
      StringBuilder buffer = new StringBuilder();
      buffer.append(getClass().getSimpleName());
      buffer.append("{");
      buffer.append("id=").append(stackId);
      buffer.append(", name=").append(stackName);
      buffer.append(", version=").append(stackVersion);
      buffer.append(", mpack_id=").append(mpackId);
      buffer.append("}");
      return buffer.toString();
    }
  }