ResultReader (Spring Framework) - Spring Framework 1.2.9 API 文档英文版

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org.springframework.jdbc.core
Interface ResultReader

All Superinterfaces:: RowCallbackHandler

All Known Implementing Classes:: MappingSqlQueryWithParameters.ResultReaderImpl, RowMapperResultReader, UpdatableSqlQuery.ResultReaderImpl

public interface ResultReader
extends RowCallbackHandler
extends RowCallbackHandler

Extension of RowCallbackHandler interface that saves the accumulated results as a List.

Allows to make a results list available in a uniform manner. JdbcTemplate's query methods will return the results list in that case, else returning null (-> result state is solely available from RowCallbackHandler object).

A convenient out-of-the-box implementation of ResultReader is the RowMapperResultReader adapter which delegates row mapping to a RowMapper. Note that a RowMapper object is typically stateless and thus reusable; just the RowMapperResultReader adapter is stateful.

Author:: Rod Johnson
See Also:: RowMapperResultReader

Method Summary

List getResults()
Return all results, disconnected from the JDBC ResultSet.

Methods inherited from interface org.springframework.jdbc.core.RowCallbackHandler

processRow

Method Summary
`List`	`getResults()` Return all results, disconnected from the JDBC ResultSet.

Methods inherited from interface org.springframework.jdbc.core.RowCallbackHandler
`processRow`

Method Detail

getResults

List getResults()

Return all results, disconnected from the JDBC ResultSet. Never returns null; returns the empty collection if there were no results.