org.seasar.doma.jdbc.criteria.statement

Interface Listable<ELEMENT>

Type Parameters:

ELEMENT - the listable element type

All Superinterfaces:

Buildable<Statement<java.util.List<ELEMENT>>>, Statement<java.util.List<ELEMENT>>

All Known Subinterfaces:

SetOperand<ELEMENT>, SetOperator<ELEMENT>, StreamMappable<ELEMENT>

All Known Implementing Classes:

AbstractSetOperand, EntityqlSelectStarting, EntityqlSelectTerminal, NativeSqlSelectIntermediate, NativeSqlSelectStarting, NativeSqlSetStarting

public interface Listable<ELEMENT>
extends Statement<java.util.List<ELEMENT>>

Represents that the implementation can fetch data from database and list them.

Method Summary

Modifier and Type	Method and Description
default java.util.List<ELEMENT>	fetch() Returns data as a list.
default ELEMENT	fetchOne() Returns the first element of data.
default java.util.Optional<ELEMENT>	fetchOptional() Returns the first element of data as an optional.
Listable<ELEMENT>	peek(java.util.function.Consumer<Sql<?>> consumer) Peeks the built SQL.
default java.util.stream.Stream<ELEMENT>	stream() Returns data as a stream.

Methods inherited from interface org.seasar.doma.jdbc.criteria.statement.Statement

execute

Methods inherited from interface org.seasar.doma.jdbc.criteria.statement.Buildable

asSql

Method Detail

fetch

default java.util.List<ELEMENT> fetch()

Returns data as a list.

Returns:

data

stream

default java.util.stream.Stream<ELEMENT> stream()

Returns data as a stream.

Returns:

data

fetchOptional

default java.util.Optional<ELEMENT> fetchOptional()

Returns the first element of data as an optional.

Returns:

the first element of data

fetchOne

default ELEMENT fetchOne()

Returns the first element of data.

Returns:

the first element of data

peek

Listable<ELEMENT> peek(java.util.function.Consumer<Sql<?>> consumer)

Description copied from interface: Buildable

Peeks the built SQL.

Specified by:

peek in interface Buildable<Statement<java.util.List<ELEMENT>>>

Specified by:

peek in interface Statement<java.util.List<ELEMENT>>

Parameters:

consumer - the SQL handler

Returns:

this instance