kodo.jdbc.sql
Interface Joins

public interface Joins

Tracks joins made when traversing relations in a select.

Method Summary

Joins	crossJoin(Table localTable, Table foreignTable) Perform a cross join on the given tables.
boolean	isEmpty() Whether we have any joins.
Joins	join(ForeignKey fk, boolean inverse, boolean toMany) Join the columns of the given foreign key.
Joins	joinRelation(String name, ForeignKey fk, boolean inverse, boolean toMany) Join the columns of the given foreign key, which represents a relation via the given field name.
Joins	outerJoin(ForeignKey fk, boolean inverse, boolean toMany) Join the columns of the given foreign key.
Joins	outerJoinRelation(String name, ForeignKey fk, boolean inverse, boolean toMany) Join the columns of the given foreign key, which represents a relation via the given field name.
Joins	setSubselect(String alias) Set the subquery alias.
Joins	setVariable(String var) Set the variable name being traversed into with the next join.

Method Detail

isEmpty

public boolean isEmpty()

Whether we have any joins.

crossJoin

public Joins crossJoin(Table localTable,
                       Table foreignTable)

Perform a cross join on the given tables.

join

public Joins join(ForeignKey fk,
                  boolean inverse,
                  boolean toMany)

Join the columns of the given foreign key.

outerJoin

public Joins outerJoin(ForeignKey fk,
                       boolean inverse,
                       boolean toMany)

Join the columns of the given foreign key.

joinRelation

public Joins joinRelation(String name,
                          ForeignKey fk,
                          boolean inverse,
                          boolean toMany)

Join the columns of the given foreign key, which represents a relation via the given field name.

outerJoinRelation

public Joins outerJoinRelation(String name,
                               ForeignKey fk,
                               boolean inverse,
                               boolean toMany)

Join the columns of the given foreign key, which represents a relation via the given field name.

setVariable

public Joins setVariable(String var)

Set the variable name being traversed into with the next join.

setSubselect

public Joins setSubselect(String alias)

Set the subquery alias.