org.springframework.data.r2dbc.core

Interface ReactiveDataAccessStrategy

All Known Implementing Classes:

DefaultReactiveDataAccessStrategy

public interface ReactiveDataAccessStrategy

Data access strategy that generalizes convenience operations using mapped entities. Typically used internally by DatabaseClient and repository support. SQL creation is limited to single-table operations and single-column primary keys.

Author:

Mark Paluch

See Also:

PreparedOperation

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ReactiveDataAccessStrategy.NamedParameterProvider Interface to retrieve parameters for named parameter processing.

Method Summary

Modifier and Type	Method and Description
List<String>	getAllColumns(Class<?> entityType)
R2dbcConverter	getConverter() Returns the R2dbcConverter.
List<String>	getIdentifierColumns(Class<?> entityType)
OutboundRow	getOutboundRow(Object object) Returns a OutboundRow that maps column names to a SettableValue value.
<T> BiFunction<Row,RowMetadata,T>	getRowMapper(Class<T> typeToRead) Returns a row mapping function to map rows to T.
StatementMapper	getStatementMapper() Returns the R2dbcDialect-specific StatementMapper.
String	getTableName(Class<?> type)
PreparedOperation<?>	processNamedParameters(String query, ReactiveDataAccessStrategy.NamedParameterProvider parameterProvider) Expand named parameters and return a PreparedOperation wrapping the given bindings.

Method Detail

getAllColumns

List<String> getAllColumns(Class<?> entityType)

Parameters:

entityType -

Returns:

all column names for a specific type.

getIdentifierColumns

List<String> getIdentifierColumns(Class<?> entityType)

Parameters:

entityType -

Returns:

all Id column names for a specific type.

getOutboundRow

OutboundRow getOutboundRow(Object object)

Returns a OutboundRow that maps column names to a SettableValue value.

Parameters:

object - must not be null.

Returns:

getRowMapper

<T> BiFunction<Row,RowMetadata,T> getRowMapper(Class<T> typeToRead)

Returns a row mapping function to map rows to T.

Type Parameters:

T -

Parameters:

typeToRead -

Returns:

getTableName

String getTableName(Class<?> type)

Parameters:

type -

Returns:

the table name for the entity type.

processNamedParameters

PreparedOperation<?> processNamedParameters(String query,
                                            ReactiveDataAccessStrategy.NamedParameterProvider parameterProvider)

Expand named parameters and return a PreparedOperation wrapping the given bindings.

Parameters:

query - the query to expand.

parameterProvider - indexed parameter bindings.

Returns:

the PreparedOperation encapsulating expanded SQL and namedBindings.

Throws:

InvalidDataAccessApiUsageException - if a named parameter value cannot be resolved.

getStatementMapper

StatementMapper getStatementMapper()

Returns the R2dbcDialect-specific StatementMapper.

Returns:

the R2dbcDialect-specific StatementMapper.

getConverter

R2dbcConverter getConverter()

Returns the R2dbcConverter.

Returns:

the R2dbcConverter.