Package org.springframework.data.jdbc.repository.query

Class AbstractJdbcQuery

java.lang.Object

org.springframework.data.jdbc.repository.query.AbstractJdbcQuery

All Implemented Interfaces:

org.springframework.data.repository.query.RepositoryQuery

Direct Known Subclasses:

PartTreeJdbcQuery, StringBasedJdbcQuery

public abstract class AbstractJdbcQuery
extends Object
implements org.springframework.data.repository.query.RepositoryQuery

Base class for queries based on a repository method. It holds the infrastructure for executing a query and knows how to execute a query based on the return type of the method. How to construct the query is left to subclasses.

Since:

2.0

Author:

Jens Schauder, Kazuki Shimizu, Oliver Gierke, Maciej Walkowiak, Mark Paluch, Dennis Effing, Mikhail Polivakha

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractJdbcQuery.ConvertingRowMapper<T>	Delegating RowMapper that reads a row into T and converts it afterwards into Object.
static interface	AbstractJdbcQuery.RowMapperFactory	Factory to create a RowMapper for a given class.

Method Summary

Modifier and Type	Method	Description
protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<Object>	createModifyingQueryExecutor()
protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<?>	createReadingQueryExecution(ResultSetExtractor<?> extractor, RowMapper<?> rowMapper)	Creates a JdbcQueryExecution given a ResultSetExtractor or a RowMapper.
protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<?>	getQueryExecution(JdbcQueryMethod queryMethod, ResultSetExtractor<?> extractor, RowMapper<?> rowMapper)	Deprecated, for removal: This API element is subject to removal in a future version. use createReadingQueryExecution(ResultSetExtractor, RowMapper) instead.
JdbcQueryMethod	getQueryMethod()
protected Class<?>	resolveTypeToRead(org.springframework.data.repository.query.ResultProcessor resultProcessor)	Obtain the result type to read from ResultProcessor.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.repository.query.RepositoryQuery

execute

Method Details

getQueryMethod

public JdbcQueryMethod getQueryMethod()

Specified by:

getQueryMethod in interface org.springframework.data.repository.query.RepositoryQuery

getQueryExecution

@Deprecated(since="3.1",
            forRemoval=true)
protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<?> getQueryExecution(JdbcQueryMethod queryMethod,
 @Nullable
 ResultSetExtractor<?> extractor,
 RowMapper<?> rowMapper)

Deprecated, for removal: This API element is subject to removal in a future version.

use createReadingQueryExecution(ResultSetExtractor, RowMapper) instead.

Creates a JdbcQueryExecution given a JdbcQueryMethod, and acResultSetExtractor or a RowMapper. Prefers the given ResultSetExtractor over RowMapper.

Parameters:

queryMethod - must not be null.

extractor - must not be null.

rowMapper - must not be null.

Returns:

a JdbcQueryExecution appropriate for queryMethod. Guaranteed to be not null.

createReadingQueryExecution

protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<?> createReadingQueryExecution(@Nullable
 ResultSetExtractor<?> extractor,
 RowMapper<?> rowMapper)

Creates a JdbcQueryExecution given a ResultSetExtractor or a RowMapper. Prefers the given ResultSetExtractor over RowMapper.

Parameters:

extractor - must not be null.

rowMapper - must not be null.

Returns:

a JdbcQueryExecution appropriate for queryMethod. Guaranteed to be not null.

createModifyingQueryExecutor

protected org.springframework.data.jdbc.repository.query.JdbcQueryExecution<Object> createModifyingQueryExecutor()

resolveTypeToRead

protected Class<?> resolveTypeToRead(org.springframework.data.repository.query.ResultProcessor resultProcessor)

Obtain the result type to read from ResultProcessor.

Parameters:

resultProcessor - the ResultProcessor used to determine the result type. Must not be null.

Returns:

the type that should get loaded from the database before it gets converted into the actual return type of a method. Guaranteed to be not null.