content: package com.ctrip.framework.apollo.model;
  
  
  import com.ctrip.framework.apollo.enums.PropertyChangeType;
  
  /**
   * Holds the information for a config change.
   * @author Jason Song(song_s@ctrip.com)
   */
  public class ConfigChange {
    private final String namespace;
    private final String propertyName;
    private String oldValue;
    private String newValue;
    private PropertyChangeType changeType;
  
    /**
     * Constructor.
     * @param namespace the namespace of the key
     * @param propertyName the key whose value is changed
     * @param oldValue the value before change
     * @param newValue the value after change
     * @param changeType the change type
     */
    public ConfigChange(String namespace, String propertyName, String oldValue, String newValue,
                        PropertyChangeType changeType) {
      this.namespace = namespace;
      this.propertyName = propertyName;
      this.oldValue = oldValue;
      this.newValue = newValue;
      this.changeType = changeType;
    }
  
    public String getPropertyName() {
      return propertyName;
    }
  
    public String getOldValue() {
      return oldValue;
    }
  
    public String getNewValue() {
      return newValue;
    }
  
    public PropertyChangeType getChangeType() {
      return changeType;
    }
  
    public void setOldValue(String oldValue) {
      this.oldValue = oldValue;
    }
  
    public void setNewValue(String newValue) {
      this.newValue = newValue;
    }
  
    public void setChangeType(PropertyChangeType changeType) {
      this.changeType = changeType;
    }
  
    public String getNamespace() {
      return namespace;
    }
  
    @Override
    public String toString() {
      final StringBuilder sb = new StringBuilder("ConfigChange{");
      sb.append("namespace='").append(namespace).append('\'');
      sb.append(", propertyName='").append(propertyName).append('\'');
      sb.append(", oldValue='").append(oldValue).append('\'');
      sb.append(", newValue='").append(newValue).append('\'');
      sb.append(", changeType=").append(changeType);
      sb.append('}');
      return sb.toString();
    }
  }
  