Module storm.java

Package st.orm.template

Interface JoinBuilder<T extends Data,R,ID>

Type Parameters:

T - the type of the table being queried.

R - the type of the result.

ID - the type of the primary key.

All Known Subinterfaces:

TypedJoinBuilder<T,R,ID>

public interface JoinBuilder<T extends Data,R,ID>

JoinBuilder relies on preview features of the Java platform:

• JoinBuilder refers to one or more preview APIs: StringTemplate.

Programs can only use JoinBuilder when preview features are enabled.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

A builder for specifying the ON condition of a JOIN clause using a custom string template expression.

JoinBuilder is returned by the join methods on QueryBuilder that accept a StringTemplate^PREVIEW or a subquery. It provides a single on(StringTemplate)^PREVIEW method to specify the join condition.

Example

 List<User> users = userRepository
         .select()
         .innerJoin(RAW."\{Order.class}", "o")
             .on(RAW."\{User_.id} = o.user_id")
         .getResultList();
 

See Also:

• TypedJoinBuilder
• QueryBuilder

Method Summary

Modifier and Type	Method	Description
QueryBuilder<T,R,ID>	on(StringTemplatePREVIEW template)	Specifies the join condition using a custom expression.

Method Details

on

QueryBuilder<T,R,ID> on(@Nonnull
 StringTemplatePREVIEW template)

Specifies the join condition using a custom expression.

Parameters:

template - the condition to join on.

Returns:

the query builder.