Copyright © 2011 Citra Technologies. All Rights Reserved.

com.citra.pivot.olap.set
Class ExceptSetSelection

java.lang.Object
  extended by com.citra.pivot.olap.set.AbstractSetSelection
      extended by com.citra.pivot.olap.set.ExceptSetSelection
All Implemented Interfaces:
OlapSelection, SetSelection

public final class ExceptSetSelection
extends AbstractSetSelection

ExceptSetSelection is a selection that removes tuples in a set from a second set.


Field Summary
protected  SetSelection set1
          the set to exclude tuples from
protected  SetSelection set2
          the set containing the tuples to exclude
 
Constructor Summary
protected ExceptSetSelection()
          Constructs an ExceptSetSelection.
  ExceptSetSelection(OlapSet set1, OlapSet set2)
          Constructs an ExceptSetSelection.
  ExceptSetSelection(SetSelection set1, OlapSet set2)
          Constructs an ExceptSetSelection.
  ExceptSetSelection(SetSelection set1, SetSelection set2)
          Constructs an ExceptSetSelection.
 
Method Summary
 boolean equals(Object o)
          Indicates whether some other object is "equal to" this one.
 SetSelection getSet1()
          Returns the set to exclude tuples from.
 SetSelection getSet2()
          Returns the set containing the tuples to exclude.
 
Methods inherited from class com.citra.pivot.olap.set.AbstractSetSelection
resolveSelection, resolveSet
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

set1

protected SetSelection set1
the set to exclude tuples from


set2

protected SetSelection set2
the set containing the tuples to exclude

Constructor Detail

ExceptSetSelection

protected ExceptSetSelection()
Constructs an ExceptSetSelection.


ExceptSetSelection

public ExceptSetSelection(OlapSet set1,
                          OlapSet set2)
Constructs an ExceptSetSelection.


ExceptSetSelection

public ExceptSetSelection(SetSelection set1,
                          OlapSet set2)
Constructs an ExceptSetSelection.


ExceptSetSelection

public ExceptSetSelection(SetSelection set1,
                          SetSelection set2)
Constructs an ExceptSetSelection.

Method Detail

equals

public boolean equals(Object o)
Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Overrides:
equals in class Object
Parameters:
o - the reference object with which to compare.
Returns:
true if this object is the same as the obj argument; false otherwise.
See Also:
Object.hashCode(), Hashtable

getSet1

public SetSelection getSet1()
Returns the set to exclude tuples from.

Returns:
the set to exclude tuples from

getSet2

public SetSelection getSet2()
Returns the set containing the tuples to exclude.

Returns:
the set containing the tuples to exclude

Copyright © 2011 Citra Technologies. All Rights Reserved.