Copyright © 2011 Citra Technologies. All Rights Reserved.

com.citra.pivot.olap.set
Class NonEmptySetSelection

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

public final class NonEmptySetSelection
extends AbstractSetSelection

NonEmptySetSelection is a selection that returns tuples from the first set that have non empty value when joined with the members of the second set.


Field Summary
protected  SetSelection set1
          the first set
protected  SetSelection set2
          the second set
 
Constructor Summary
protected NonEmptySetSelection()
          Constructs a NonEmptySetSelection.
  NonEmptySetSelection(SetSelection set1)
          Constructs a NonEmptySetSelection.
  NonEmptySetSelection(SetSelection set1, SetSelection set2)
          Constructs a NonEmptySetSelection.
 
Method Summary
 boolean equals(Object o)
          Indicates whether some other object is "equal to" this one.
 SetSelection getSet1()
          Returns the first set.
 SetSelection getSet2()
          Returns the second set.
 
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 first set


set2

protected SetSelection set2
the second set

Constructor Detail

NonEmptySetSelection

protected NonEmptySetSelection()
Constructs a NonEmptySetSelection.


NonEmptySetSelection

public NonEmptySetSelection(SetSelection set1)
Constructs a NonEmptySetSelection.


NonEmptySetSelection

public NonEmptySetSelection(SetSelection set1,
                            SetSelection set2)
Constructs a NonEmptySetSelection.

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 first set.

Returns:
the first set

getSet2

public SetSelection getSet2()
Returns the second set.

Returns:
the second set

Copyright © 2011 Citra Technologies. All Rights Reserved.