类 RepositoryItemReaderBuilder<T>

构造器详细资料

• RepositoryItemReaderBuilder

  public RepositoryItemReaderBuilder()

方法详细资料

• saveState

  public RepositoryItemReaderBuilder<T> saveState​(boolean saveState)

  Configure if the state of the ItemStreamSupport should be persisted within the ExecutionContext for restart purposes.

  参数:

  saveState - defaults to true

  返回:

  The current instance of the builder.

• name

  public RepositoryItemReaderBuilder<T> name​(java.lang.String name)

  The name used to calculate the key within the ExecutionContext. Required if saveState(boolean) is set to true.

  参数:

  name - name of the reader instance

  返回:

  The current instance of the builder.

  另请参阅:

  ItemStreamSupport.setName(String)

• maxItemCount

  public RepositoryItemReaderBuilder<T> maxItemCount​(int maxItemCount)

  Configure the max number of items to be read.

  参数:

  maxItemCount - the max items to be read

  返回:

  The current instance of the builder.

  另请参阅:

  AbstractItemCountingItemStreamItemReader.setMaxItemCount(int)

• currentItemCount

  public RepositoryItemReaderBuilder<T> currentItemCount​(int currentItemCount)

  Index for the current item. Used on restarts to indicate where to start from.

  参数:

  currentItemCount - current index

  返回:

  this instance for method chaining

  另请参阅:

  AbstractItemCountingItemStreamItemReader.setCurrentItemCount(int)

• arguments

  public RepositoryItemReaderBuilder<T> arguments​(java.util.List<?> arguments)

  Arguments to be passed to the data providing method.

  参数:

  arguments - list of method arguments to be passed to the repository.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setArguments(List)

• sorts

  public RepositoryItemReaderBuilder<T> sorts​(java.util.Map<java.lang.String,​org.springframework.data.domain.Sort.Direction> sorts)

  Provides ordering of the results so that order is maintained between paged queries.

  参数:

  sorts - the fields to sort by and the directions.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setSort(Map)

• pageSize

  public RepositoryItemReaderBuilder<T> pageSize​(int pageSize)

  Establish the pageSize for the generated RepositoryItemReader.

  参数:

  pageSize - The number of items to retrieve per page.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setPageSize(int)

• repository

  public RepositoryItemReaderBuilder<T> repository​(org.springframework.data.repository.PagingAndSortingRepository<?,​?> repository)

  The PagingAndSortingRepository implementation used to read input from.

  参数:

  repository - underlying repository for input to be read from.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setRepository(PagingAndSortingRepository)

• methodName

  public RepositoryItemReaderBuilder<T> methodName​(java.lang.String methodName)

  Specifies what method on the repository to call. This method must take Pageable as the last argument.

  参数:

  methodName - name of the method to invoke.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setMethodName(String)

• repository

  public RepositoryItemReaderBuilder<T> repository​(RepositoryItemReaderBuilder.RepositoryMethodReference repositoryMethodReference)

  Specifies a repository and the type-safe method to call for the reader. The method configured via this mechanism must take Pageable as the last argument. This method can be used in place of repository(PagingAndSortingRepository), methodName(String), and arguments(List). Note: The repository that is used by the repositoryMethodReference must be non-final.

  参数:

  repositoryMethodReference - of the used to get a repository and type-safe method for use by the reader.

  返回:

  The current instance of the builder.

  另请参阅:

  RepositoryItemReader.setMethodName(String), RepositoryItemReader.setRepository(PagingAndSortingRepository)

• build

  public RepositoryItemReader<T> build()

  Builds the RepositoryItemReader.

  返回:

  a RepositoryItemReader