@NonNullApi

# Package org.springframework.batch.item.database

Infrastructure implementations of database based item readers and writers.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  ItemPreparedStatementSetter<T> | A convenient strategy for SQL updates, acting effectively as the inverse of `RowMapper`.
  ItemSqlParameterSourceProvider<T> | A convenient strategy for providing SqlParameterSource for named parameter SQL updates.
  PagingQueryProvider | Interface defining the functionality to be provided for generating paging queries for use with Paging Item Readers.

- Class Summary
  Class | Description
  --- | ---
  AbstractCursorItemReader<T> | Abstract base class for any simple item reader that opens a database cursor and continually retrieves the next row in the ResultSet.
  AbstractPagingItemReader<T> | Abstract `ItemStreamReader` for to extend when reading database records in a paging fashion.
  BeanPropertyItemSqlParameterSourceProvider<T> | A convenient implementation for providing BeanPropertySqlParameterSource when the item has JavaBean properties that correspond to names used for parameters in the SQL statement.
  ExtendedConnectionDataSourceProxy | Implementation of `SmartDataSource` that is capable of keeping a single JDBC Connection which is NOT closed after each use even if `Connection.close()` is called.
  HibernateCursorItemReader<T> | `ItemStreamReader` for reading database records built on top of Hibernate.
  HibernateItemReaderHelper<T> | Internal shared state helper for hibernate readers managing sessions and queries.
  HibernateItemWriter<T> | `ItemWriter` that uses a Hibernate session to save or update entities that are not part of the current Hibernate session.
  HibernatePagingItemReader<T> | `ItemReader` for reading database records built on top of Hibernate and reading only up to a fixed number of items at a time.
  JdbcBatchItemWriter<T> | `ItemWriter` that uses the batching features from `NamedParameterJdbcTemplate` to execute a batch of statements for all items provided.
  JdbcCursorItemReader<T> | Simple item reader implementation that opens a JDBC cursor and continually retrieves the next row in the ResultSet.
  JdbcPagingItemReader<T> | `ItemReader` for reading database records using JDBC in a paging fashion.
  JdbcParameterUtils | Helper methods for SQL statement parameter parsing.
  JpaCursorItemReader<T> | `ItemStreamReader` implementation based on JPA `Query.getResultStream()`.
  JpaItemWriter<T> | `ItemWriter` that is using a JPA EntityManagerFactory to merge any Entities that aren't part of the persistence context.
  JpaPagingItemReader<T> | `ItemReader` for reading database records built on top of JPA.
  StoredProcedureItemReader<T> | Item reader implementation that executes a stored procedure and then reads the returned cursor and continually retrieves the next row in the `ResultSet`.

- Enum Summary
  Enum | Description
  --- | ---
  Order | The direction of the sort in an ORDER BY clause.

## Package org.springframework.batch.item.database Description

Infrastructure implementations of database based item readers and writers.