: Class ProcessQuery

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EVEDemo.SWEEP
Class ProcessQuery

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--EVEDemo.SWEEP.ProcessQuery

public class ProcessQuery
extends java.lang.Thread
implements java.io.Serializable

See Also:: Serialized Form

Field Summary
`(package private) Relation`	`currentRelation`
`java.util.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.
`(package private) int`	`MyIndex`
`(package private) MultiQueue`	`publicFIFOChannel`

Fields inherited from class java.lang.Thread

contextClassLoader,  
daemon,  
eetop,  
group,  
inheritedAccessControlContext,  
MAX_PRIORITY,  
MIN_PRIORITY,  
name,  
NORM_PRIORITY,  
priority,  
single_step,  
stillborn,  
stopThreadPermission,  
target,  
threadInitNumber,  
threadQ,  
values

Constructor Summary
`ProcessQuery(MultiQueue FIFOChannel, Relation theRelation, int theIndex)`

Method Summary
`Relation`	`ComputeJoinOn(Relation theView, Relation theRelation, java.lang.String att1, java.lang.String att2)`
`void`	`run()`

Methods inherited from class java.lang.Thread

, 
activeCount, 
checkAccess, 
countStackFrames, 
currentThread, 
destroy, 
dumpStack, 
enumerate, 
exit, 
getContextClassLoader, 
getName, 
getPriority, 
getThreadGroup, 
init, 
interrupt, 
interrupt0, 
interrupted, 
isAlive, 
isDaemon, 
isInterrupted, 
isInterrupted, 
join, 
join, 
join, 
nextThreadNum, 
registerNatives, 
resume, 
resume0, 
setContextClassLoader, 
setDaemon, 
setName, 
setPriority, 
setPriority0, 
sleep, 
sleep, 
start, 
stop, 
stop, 
stop0, 
suspend, 
suspend0, 
toString, 
yield

Methods inherited from class java.lang.Object

clone, 
equals, 
finalize, 
getClass, 
hashCode, 
notify, 
notifyAll, 
wait, 
wait, 
wait

Field Detail

publicFIFOChannel

MultiQueue publicFIFOChannel

currentRelation

Relation currentRelation

MyIndex

int MyIndex

JCAttrs

public java.util.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.

Constructor Detail

ProcessQuery

public ProcessQuery(MultiQueue FIFOChannel,
                    Relation theRelation,
                    int theIndex)

Method Detail

run

public void run()

Overrides:: run in class java.lang.Thread

ComputeJoinOn

public Relation ComputeJoinOn(Relation theView,
                              Relation theRelation,
                              java.lang.String att1,
                              java.lang.String att2)