edu.wpi.cs.dsrg.xmldb.xat.component.querymerger
Class MergeVisitor
java.lang.Object
|
+--edu.wpi.cs.dsrg.xmldb.xat.common.visitorpattern.InheritableVisitor
|
+--edu.wpi.cs.dsrg.xmldb.xat.common.visitorpattern.TwoParamVisitor
|
+--edu.wpi.cs.dsrg.xmldb.xat.component.querymerger.MergeVisitor
- public class MergeVisitor
- extends TwoParamVisitor
Method Summary |
java.lang.Object |
dispatch()
To visit a null object. |
java.lang.Object |
dispatch(java.lang.Object obj)
To visit any object. |
java.lang.Object |
dispatch(java.lang.Object obj1,
java.lang.Object obj2)
To visit two objects. |
XATTree |
getUserXAT()
Insert the method's description here. |
XATTree |
getViewXAT()
Insert the method's description here. |
void |
mergeTrees()
xtrObj1 will be the user query or upper tree
xtrObj2 will be the mapping query or bottom tree
Also the binding tables should be merged. |
void |
mergeTrees(boolean mergeTagger)
xtrObj1 will be the user query or upper tree
xtrObj2 will be the mapping query or bottom tree
Also the binding tables should be merged. |
void |
setUserXAT(XATTree newUserXAT)
Insert the method's description here. |
void |
setViewXAT(XATTree newViewXAT)
Insert the method's description here. |
java.lang.Object |
visit(Source s,
XATTree viewTree)
Connect the bottom of the user query to the top of the view query
Add a Rename that takes the output of the root of the View query and renames the
Output of the Source s into that. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
userXAT
protected XATTree userXAT
viewXAT
protected XATTree viewXAT
MergeVisitor
public MergeVisitor(XATTree userTree,
XATTree viewTree)
- Insert the method's description here.
dispatch
public java.lang.Object dispatch()
- Description copied from class: InheritableVisitor
- To visit a null object.
- Overrides:
- dispatch in class InheritableVisitor
dispatch
public java.lang.Object dispatch(java.lang.Object obj)
- Description copied from class: InheritableVisitor
- To visit any object.
- Overrides:
- dispatch in class InheritableVisitor
dispatch
public java.lang.Object dispatch(java.lang.Object obj1,
java.lang.Object obj2)
- Description copied from class: TwoParamVisitor
- To visit two objects.
- Overrides:
- dispatch in class TwoParamVisitor
getUserXAT
public XATTree getUserXAT()
- Insert the method's description here.
- Returns:
- edu.wpi.cs.dsrg.xmldb.xat.common.treestructure.XATTree
getViewXAT
public XATTree getViewXAT()
- Insert the method's description here.
- Returns:
- edu.wpi.cs.dsrg.xmldb.xat.common.treestructure.XATTree
mergeTrees
public void mergeTrees()
- xtrObj1 will be the user query or upper tree
xtrObj2 will be the mapping query or bottom tree
Also the binding tables should be merged.
mergeTrees
public void mergeTrees(boolean mergeTagger)
- xtrObj1 will be the user query or upper tree
xtrObj2 will be the mapping query or bottom tree
Also the binding tables should be merged.
- Parameters:
mergeTagger:
- whether merge will merge all the taggers or not.
setUserXAT
public void setUserXAT(XATTree newUserXAT)
- Insert the method's description here.
- Parameters:
newUserXAT
- edu.wpi.cs.dsrg.xmldb.xat.common.treestructure.XATTree
setViewXAT
public void setViewXAT(XATTree newViewXAT)
- Insert the method's description here.
- Parameters:
newViewXAT
- edu.wpi.cs.dsrg.xmldb.xat.common.treestructure.XATTree
visit
public java.lang.Object visit(Source s,
XATTree viewTree)
throws XATNodeDoesNotExistException
- Connect the bottom of the user query to the top of the view query
Add a Rename that takes the output of the root of the View query and renames the
Output of the Source s into that.
Also, get rid of the expose operator for the view tree.