edu.wpi.cs.dsrg.xmldb.xat.common.operator.sqloperator
Interface Join

All Known Subinterfaces:
LeftOuterJoin, LeftSemiJoin, RightOuterJoin, RightSemiJoin, ThetaJoin
All Known Implementing Classes:
JoinImp

public interface Join
extends CartesianProduct

The Join interface.

Since:
1.0

Method Summary
 Expression getExpression()
          Gets join expression.
 void setExpression(Expression new_expression)
          Set join expression.
 
Methods inherited from interface edu.wpi.cs.dsrg.xmldb.xat.common.operator.sqloperator.CartesianProduct
getLeft, getRight
 
Methods inherited from interface edu.wpi.cs.dsrg.xmldb.xat.common.operator.XATMultiSourceOperator
getDataSourceAt, getDataSources, getSourceAt, getSources
 

Method Detail

getExpression

public Expression getExpression()
Gets join expression.
Returns:
join expression
Since:
1.0

setExpression

public void setExpression(Expression new_expression)
Set join expression.
Parameters:
new_expression - is join expression.
Since:
1.0