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
 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:


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