org.apache.openjpa.jdbc.sql
Interface PathJoins

All Superinterfaces:

Joins

All Known Implementing Classes:

SelectImpl, SelectImpl.SelectResult

interface PathJoins
extends Joins

Common joins interface used internally. Cannot be made an inner class because the outer class (Select) has to implement it.

Method Summary

String	getPathStr()
Select	getSelect() The select owner of this join
boolean	isDirty() Return true if this instance has a path, any joins, or a variable.
int	joinCount() Return the maximum number of joins contained in this instance at any time.
JoinSet	joins() Return the set of Join elements, or null if none.
void	nullJoins() Null the set of Join elements.
StringBuilder	path() Return the relation path traversed by these joins, or null if none.
PathJoins	setOuter(boolean outer) Mark this as an outer joins set.

Methods inherited from interface org.apache.openjpa.jdbc.sql.Joins

crossJoin, getCorrelatedVariable, isEmpty, isOuter, join, joinRelation, moveJoinsToParent, outerJoin, outerJoinRelation, setCorrelatedVariable, setJoinContext, setSubselect, setVariable

Method Detail

setOuter

PathJoins setOuter(boolean outer)

Mark this as an outer joins set.

isDirty

boolean isDirty()

Return true if this instance has a path, any joins, or a variable.

path

StringBuilder path()

Return the relation path traversed by these joins, or null if none.

joins

JoinSet joins()

Return the set of Join elements, or null if none.

joinCount

int joinCount()

Return the maximum number of joins contained in this instance at any time.

nullJoins

void nullJoins()

Null the set of Join elements.

getSelect

Select getSelect()

The select owner of this join

Returns:

getPathStr

String getPathStr()