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java.lang.Objectcom.citra.pivot.olap.set.AbstractSetSelection
com.citra.pivot.olap.set.SingleSetSelection
public final class SingleSetSelection
SingleSetSelection is a selection that returns members from a single hierarchy only.
It has a member that is used as the basis for the selection,
and also an operator mask that employs values from SelectionConstants
.
Using SingleSetSelection, members can be easily selected.
For example, in order to retrieve the children and ancestors of a given member:
SingleSetSelection selection = new SingleSetSelection(member, SelectionConstants.CHILDREN | SelectionConstants.ANCESTORS);
List members = selection.resolveMembers(dataSource);
Field Summary | |
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protected MemberSelection |
memberSelection
the basis of the selection |
protected int |
operators
the selection operator mask |
Fields inherited from interface com.citra.pivot.olap.set.SelectionConstants |
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ANCESTORS, CHILDREN, DESCENDANTS, LEAVES, PARENT, SELF, SIBLINGS |
Constructor Summary | |
---|---|
protected |
SingleSetSelection()
Constructs a SingleSetSelection with no given member as basis, having SELF as the selection operator. |
|
SingleSetSelection(MemberSelection memberSelection)
Constructs a SingleSetSelection with a given member as basis, having SELF as the selection operator. |
|
SingleSetSelection(MemberSelection memberSelection,
int operators)
Constructs a SingleSetSelection with a given member as basis, and a list of operators from SelectionConstants . |
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SingleSetSelection(OlapMember member)
Constructs a SingleSetSelection with a given member as basis, having SELF as the selection operator. |
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SingleSetSelection(OlapMember member,
int operators)
Constructs a SingleSetSelection with a given member as basis, and a list of operators from SelectionConstants . |
Method Summary | |
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boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one. |
MemberSelection |
getMember()
Retrieves the member that is used as the basis for this selection. |
int |
getOperators()
Retrieves the selection operator mask. |
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 MemberSelection memberSelection
protected int operators
Constructor Detail |
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protected SingleSetSelection()
public SingleSetSelection(MemberSelection memberSelection)
public SingleSetSelection(MemberSelection memberSelection, int operators)
SelectionConstants
.
public SingleSetSelection(OlapMember member)
public SingleSetSelection(OlapMember member, int operators)
SelectionConstants
.
Method Detail |
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public 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 MemberSelection getMember()
public int getOperators()
SelectionConstants
.
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Copyright © 2011 Citra Technologies. All Rights Reserved. | ||||||||
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