SelectableRangeSet (Mckoi SQL Database (MckoiSQLDB) 1.0.6 API)

java.lang.Object
- com.mckoi.database.SelectableRangeSet

```
public final class SelectableRangeSet
extends java.lang.Object
```
Represents a complex normalized range of a list. This is essentially a set of SelectableRange objects that make up a complex view of a range. For example, say we had a query '(a > 10 and a < 20 and a <> 15) or a >= 50', we could represent this range by the following range set;
```
 RANGE: AFTER_LAST_VALUE 10, BEFORE_FIRST_VALUE 15
 RANGE: AFTER_LAST_VALUE 15, BEFORE_FIRST_VALUE 20
 RANGE: FIRST_VALUE 50, LAST_VALUE LAST_IN_SET
 
```
The range is constructed by calls to 'intersect', and 'union'.
Author:

Tobias Downer

Constructor Summary

Constructors
Constructor Description

SelectableRangeSet()
Constructs the SelectableRangeSet to a full range (a range that encompases all values).

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`intersect(Operator op, TObject val)`	Intersects this range with the given Operator and value constraint.
`static void`	`main(java.lang.String[] args)`	A test application.
`SelectableRange[]`	`toSelectableRangeArray()`	Returns the range as an array of SelectableRange or an empty array if there is no range.
`java.lang.String`	`toString()`	Outputs this range as a string, for diagnostic and testing purposes.
`void`	`union(Operator op, TObject val)`	Unions this range with the given Operator and value constraint.
`void`	`union(SelectableRangeSet union_to)`	Unions the current range set with the given range set.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - SelectableRangeSet
```
public SelectableRangeSet()
```
    Constructs the SelectableRangeSet to a full range (a range that encompases all values). If 'no_nulls' is true then the range can't include null values.
- Method Detail
  - intersect
```
public void intersect(Operator op,
                      TObject val)
```
    Intersects this range with the given Operator and value constraint. For example, if a range is 'a' -> [END] and the given operator is '<=' and the value is 'z' the result range is 'a' -> 'z'.
  - union
```
public void union(Operator op,
                  TObject val)
```
    Unions this range with the given Operator and value constraint.
  - union
```
public void union(SelectableRangeSet union_to)
```
    Unions the current range set with the given range set.
  - toSelectableRangeArray
```
public SelectableRange[] toSelectableRangeArray()
```
    Returns the range as an array of SelectableRange or an empty array if there is no range.
  - toString
```
public java.lang.String toString()
```
    Outputs this range as a string, for diagnostic and testing purposes.
    
    Overrides:
    
    toString in class java.lang.Object
  - main
```
public static void main(java.lang.String[] args)
```
    A test application.