org.tentackle.pdo

Class JoinedSelect<T extends PersistentDomainObject<T>>

java.lang.Object

org.tentackle.pdo.JoinedSelect<T>

Type Parameters:

T - the primary PDO type

public class JoinedSelect<T extends PersistentDomainObject<T>>
extends Object

A joined select.

Author:

harald

Constructor Summary

Constructors

Constructor and Description
JoinedSelect() Creates a joined select.
JoinedSelect(List<Join<? super T,?>> joins) Creates a joined select from a list of joins.

Method Summary

Modifier and Type	Method and Description
void	addJoin(Join<? super T,?> join) Adds a join.
void	createJoinedSql(T pdo, StringBuilder selectSql) Creates the SQL-code that does the joined select.
T	currentPdo() Gets the currentl retrieved PDO.
List<Join<? super T,?>>	getJoins() Gets the joins.
T	getLastPdo() Gets the PDO retrieved before the current PDO.
void	initialize(List<T> list) Initializes the joined select.
T	nextPdo(T pdo) Finishes the current pdo and switched to the next.
int	setClassIdsInStatement(PreparedStatementWrapper st, int ndx) Sets the class-ID parameters if required for the joins.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinedSelect

public JoinedSelect()

Creates a joined select.

JoinedSelect

public JoinedSelect(List<Join<? super T,?>> joins)

Creates a joined select from a list of joins.

Parameters:

joins - the joins

Method Detail

addJoin

public void addJoin(Join<? super T,?> join)

Adds a join.

Parameters:

join - the join

getJoins

public List<Join<? super T,?>> getJoins()

Gets the joins.

Returns:

the joins

createJoinedSql

public void createJoinedSql(T pdo,
                            StringBuilder selectSql)

Creates the SQL-code that does the joined select.

Parameters:

pdo - the pdo proxy

selectSql - the unjoined select builder

setClassIdsInStatement

public int setClassIdsInStatement(PreparedStatementWrapper st,
                                  int ndx)

Sets the class-ID parameters if required for the joins.

Parameters:

st - the statement

ndx - the next parameter ndx

Returns:

the next parameter index

getLastPdo

public T getLastPdo()

Gets the PDO retrieved before the current PDO.

Returns:

the last pdo

currentPdo

public T currentPdo()

Gets the currentl retrieved PDO.

Returns:

the pdo, null if no query running

nextPdo

public T nextPdo(T pdo)

Finishes the current pdo and switched to the next.

Parameters:

pdo - the next pdo

Returns:

the pdo possibly changed if already in list

initialize

public void initialize(List<T> list)

Initializes the joined select.

Parameters:

list - the list if select to list