Module litebridge.orm

Package org.litebridgedb.orm.api.dto

Class DtoSelector<DTO>

java.lang.Object

org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

org.litebridgedb.orm.api.dto.DtoSelector<DTO>

All Implemented Interfaces:

org.litebridgedb.orm.api.select.SelectTerminal<DTO>

public final class DtoSelector<DTO>
extends org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

Field Summary

Fields inherited from class org.litebridgedb.orm.api.select.impl.AbstractSelector

databaseProvider, dtoClass, selectSpec

Constructor Summary

Constructors

Constructor	Description
DtoSelector(Class<DTO> dtoClass, OrmTable dtoTable, TableRegistry tableRegistry, ClassFieldAccessorCache classFieldAccessorCache, TransactionalDatabaseProvider databaseProvider, org.litebridgedb.orm.persistence.alias.AliasGenerator aliasGenerator)

Method Summary

Modifier and Type	Method	Description
ClassFieldAccessorCache	classFieldAccessorCache()
@Nullable DTO	firstOrNull()	Executes the query and returns the first row if present.
List<DTO>	list()	Executes the query and materializes all results into a List.
@Nullable DTO	oneOrNull()	Executes the query and expects exactly one result.
DtoFromClauseTerminal<DTO>	select()
DtoFromClauseTerminal<DTO>	select(String... fields)
DtoFromClauseTerminal<DTO>	select(Aliased... fields)
protected DtoSelectSpec	selectSpec()

Methods inherited from class org.litebridgedb.orm.api.select.impl.AbstractSelector

executeQuery, executeQuery, first, firstOrThrow, firstOrThrow, one, oneOrThrow, oneOrThrow, stream, toSql

Methods inherited from class java.lang.Object

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

Constructor Details

DtoSelector

public DtoSelector(Class<DTO> dtoClass,
 OrmTable dtoTable,
 TableRegistry tableRegistry,
 ClassFieldAccessorCache classFieldAccessorCache,
 TransactionalDatabaseProvider databaseProvider,
 org.litebridgedb.orm.persistence.alias.AliasGenerator aliasGenerator)

Method Details

select

public DtoFromClauseTerminal<DTO> select(String... fields)

select

public DtoFromClauseTerminal<DTO> select(Aliased... fields)

select

public DtoFromClauseTerminal<DTO> select()

oneOrNull

public @Nullable DTO oneOrNull()

Description copied from interface: org.litebridgedb.orm.api.select.SelectTerminal

Executes the query and expects exactly one result.

Specified by:

oneOrNull in interface org.litebridgedb.orm.api.select.SelectTerminal<DTO>

Specified by:

oneOrNull in class org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

Returns:

the single result, or null when no row matches

firstOrNull

public @Nullable DTO firstOrNull()

Description copied from interface: org.litebridgedb.orm.api.select.SelectTerminal

Executes the query and returns the first row if present.

Specified by:

firstOrNull in interface org.litebridgedb.orm.api.select.SelectTerminal<DTO>

Specified by:

firstOrNull in class org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

Returns:

the first result, or null when no row matches

list

public List<DTO> list()

Description copied from interface: org.litebridgedb.orm.api.select.SelectTerminal

Executes the query and materializes all results into a List.

Specified by:

list in interface org.litebridgedb.orm.api.select.SelectTerminal<DTO>

Specified by:

list in class org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

Returns:

list of all matching results (possibly empty)

selectSpec

protected DtoSelectSpec selectSpec()

Overrides:

selectSpec in class org.litebridgedb.orm.api.select.impl.AbstractSelector<DTO,DtoSelectSpec>

classFieldAccessorCache

public ClassFieldAccessorCache classFieldAccessorCache()