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

All Known Subinterfaces:
OuterUnion
All Known Implementing Classes:
UnionImp

public interface Union
extends SQLOperator, XATMultiSourceOperator

The Union interface.

Since:
1.0

Method Summary
 XATTable getSourceAt(int position)
          Get a specific source of at certain position.
 XATTable[] getSources()
          Return an array of XATTable objects obtained from the opertor child nodes.
 
Methods inherited from interface edu.wpi.cs.dsrg.xmldb.xat.common.operator.XATMultiSourceOperator
getDataSourceAt, getDataSources
 

Method Detail

getSourceAt

public XATTable getSourceAt(int position)
Get a specific source of at certain position.
Specified by:
getSourceAt in interface XATMultiSourceOperator
Parameters:
position - is source position
Returns:
XATTable in that position.
Since:
1.0

getSources

public XATTable[] getSources()
Return an array of XATTable objects obtained from the opertor child nodes.
Specified by:
getSources in interface XATMultiSourceOperator
Returns:
array of XATTable.
Since:
1.0