org.springframework.batch.repeat.interceptor

## Class RepeatOperationsInterceptor

- java.lang.Object
- - org.springframework.batch.repeat.interceptor.RepeatOperationsInterceptor

- All Implemented Interfaces:
    org.aopalliance.aop.Advice, org.aopalliance.intercept.Interceptor, org.aopalliance.intercept.MethodInterceptor

      public class RepeatOperationsInterceptor
      extends java.lang.Object
      implements org.aopalliance.intercept.MethodInterceptor

  A `MethodInterceptor` that can be used to automatically repeat calls to a method on a service. The injected `RepeatOperations` is used to control the completion of the loop. Independent of the completion policy in the `RepeatOperations` the loop will repeat until the target method returns null or false. Be careful when injecting a bespoke `RepeatOperations` that the loop will actually terminate, because the default policy for a vanilla `RepeatTemplate` will never complete if the return type of the target method is void (the value returned is always not-null, representing the `Void.TYPE`).
  Author:
    Dave Syer

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `RepeatOperationsInterceptor()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.Object` | `invoke(org.aopalliance.intercept.MethodInvocation invocation)` Invoke the proceeding method call repeatedly, according to the properties of the injected `RepeatOperations`.
    `void` | `setRepeatOperations(RepeatOperations batchTemplate)` Setter for the `RepeatOperations`.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### RepeatOperationsInterceptor

          public RepeatOperationsInterceptor()

  - ### Method Detail

    - #### setRepeatOperations

          public void setRepeatOperations(RepeatOperations batchTemplate)

      Setter for the `RepeatOperations`.
      Parameters:
        `batchTemplate` - template to be used
      Throws:
        `java.lang.IllegalArgumentException` - if the argument is null.

    - #### invoke

          public java.lang.Object invoke(org.aopalliance.intercept.MethodInvocation invocation)
                                  throws java.lang.Throwable

      Invoke the proceeding method call repeatedly, according to the properties of the injected `RepeatOperations`.
      Specified by:
        `invoke` in interface `org.aopalliance.intercept.MethodInterceptor`
      Throws:
        `java.lang.Throwable`
      See Also:
        `MethodInterceptor.invoke(org.aopalliance.intercept.MethodInvocation)`