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java.lang.Objectcom.citra.pivot.olap.set.AbstractSetSelection
com.citra.pivot.olap.set.CrossSetSelection
public final class CrossSetSelection
CrossSetSelection is a selection that produces a cross join between sets.
Field Summary | |
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protected SetSelectionList |
sets
the sets to cross join |
Constructor Summary | |
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protected |
CrossSetSelection()
Constructs a CrossSetSelection. |
|
CrossSetSelection(List sets)
Constructs a CrossSetSelection. |
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CrossSetSelection(OlapSet set1,
OlapSet set2)
Constructs a CrossSetSelection. |
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CrossSetSelection(SetSelection set1,
OlapSet set2)
Constructs a CrossSetSelection. |
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CrossSetSelection(SetSelection set1,
SetSelection set2)
Constructs a CrossSetSelection. |
Method Summary | |
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void |
add(OlapSet set)
Adds a set to cross join. |
void |
add(SetSelection selection)
Adds a set to cross join. |
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one. |
SetSelectionList |
getSets()
Determines the sets to cross join. |
Methods inherited from class com.citra.pivot.olap.set.AbstractSetSelection |
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resolveSelection, resolveSet |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected SetSelectionList sets
Constructor Detail |
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protected CrossSetSelection()
public CrossSetSelection(OlapSet set1, OlapSet set2)
public CrossSetSelection(SetSelection set1, OlapSet set2)
public CrossSetSelection(SetSelection set1, SetSelection set2)
public CrossSetSelection(List sets)
Method Detail |
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public void add(OlapSet set)
set
- the set to addpublic void add(SetSelection selection)
selection
- the set to addpublic boolean equals(Object o)
The equals
method implements an equivalence relation
on non-null object references:
x
, x.equals(x)
should return
true
.
x
and y
, x.equals(y)
should return true
if and only if
y.equals(x)
returns true
.
x
, y
, and z
, if
x.equals(y)
returns true
and
y.equals(z)
returns true
, then
x.equals(z)
should return true
.
x
and y
, multiple invocations of
x.equals(y) consistently return true
or consistently return false
, provided no
information used in equals
comparisons on the
objects is modified.
x
,
x.equals(null)
should return false
.
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.
equals
in class Object
o
- the reference object with which to compare.
true
if this object is the same as the obj
argument; false
otherwise.Object.hashCode()
,
Hashtable
public SetSelectionList getSets()
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