类 AbstractBindHandler

构造器详细资料

• AbstractBindHandler

  public AbstractBindHandler()

  Create a new binding handler instance.

• AbstractBindHandler

  public AbstractBindHandler​(BindHandler parent)

  Create a new binding handler instance with a specific parent.

  参数:

  parent - the parent handler

方法详细资料

• onStart

  public <T> Bindable<T> onStart​(ConfigurationPropertyName name,
                                 Bindable<T> target,
                                 BindContext context)

  从接口复制的说明: BindHandler
  Called when binding of an element starts but before any result has been determined.

  指定者:

  onStart 在接口中 BindHandler

  类型参数:

  T - the bindable source type

  参数:

  name - the name of the element being bound

  target - the item being bound

  context - the bind context

  返回:

  the actual item that should be used for binding (may be null)

• onSuccess

  public Object onSuccess​(ConfigurationPropertyName name,
                          Bindable<?> target,
                          BindContext context,
                          Object result)

  从接口复制的说明: BindHandler
  Called when binding of an element ends with a successful result. Implementations may change the ultimately returned result or perform addition validation.

  指定者:

  onSuccess 在接口中 BindHandler

  参数:

  name - the name of the element being bound

  target - the item being bound

  context - the bind context

  result - the bound result (never null)

  返回:

  the actual result that should be used (may be null)

• onFailure

  public Object onFailure​(ConfigurationPropertyName name,
                          Bindable<?> target,
                          BindContext context,
                          Exception error)
                   throws Exception

  从接口复制的说明: BindHandler
  Called when binding fails for any reason (including failures from BindHandler.onSuccess(org.springframework.boot.context.properties.source.ConfigurationPropertyName, org.springframework.boot.context.properties.bind.Bindable<?>, org.springframework.boot.context.properties.bind.BindContext, java.lang.Object) calls). Implementations may choose to swallow exceptions and return an alternative result.

  指定者:

  onFailure 在接口中 BindHandler

  参数:

  name - the name of the element being bound

  target - the item being bound

  context - the bind context

  error - the cause of the error (if the exception stands it may be re-thrown)

  返回:

  the actual result that should be used (may be null).

  抛出:

  Exception - if the binding isn't valid

• onFinish

  public void onFinish​(ConfigurationPropertyName name,
                       Bindable<?> target,
                       BindContext context,
                       Object result)
                throws Exception

  从接口复制的说明: BindHandler
  Called when binding finishes, regardless of whether the property was bound or not.

  指定者:

  onFinish 在接口中 BindHandler

  参数:

  name - the name of the element being bound

  target - the item being bound

  context - the bind context

  result - the bound result (may be null)

  抛出:

  Exception - if the binding isn't valid