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Class SWEEP.ProcessQuery
java.lang.Object
|
+----java.lang.Thread
|
+----SWEEP.ProcessQuery
- public class ProcessQuery
- extends Thread
- implements Serializable
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currentRelation
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JCAttrs
- Because there will be more than one Join Condition connects to one
Relation, So, we use Hashtable stores all the Join Conditions, and ordered
by the Relation.
-
MyIndex
-
-
publicFIFOChannel
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ProcessQuery(MultiQueue, Relation, int)
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ComputeJoinOn(Relation, Relation, String, String)
-
-
run()
-
publicFIFOChannel
MultiQueue publicFIFOChannel
currentRelation
Relation currentRelation
MyIndex
int MyIndex
JCAttrs
public Hashtable JCAttrs
- Because there will be more than one Join Condition connects to one
Relation, So, we use Hashtable stores all the Join Conditions, and ordered
by the Relation.
This is the Hashtable of Attribute Pairs. They are indexed on the Relation
Name.
ProcessQuery
public ProcessQuery(MultiQueue FIFOChannel,
Relation theRelation,
int theIndex)
run
public void run()
- Overrides:
- run in class Thread
ComputeJoinOn
public Relation ComputeJoinOn(Relation theView,
Relation theRelation,
String att1,
String att2)
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