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java.lang.Objectorg.h2.result.SortOrder
public class SortOrder
A sort order represents an ORDER BY clause in a query.
| Field Summary | |
|---|---|
static int |
ASCENDING
This bit mask means the values should be sorted in ascending order. |
static int |
DESCENDING
This bit mask means the values should be sorted in descending order. |
static int |
NULLS_FIRST
This bit mask means NULLs should be sorted before other data, no matter if ascending or descending order is used. |
static int |
NULLS_LAST
This bit mask means NULLs should be sorted after other data, no matter if ascending or descending order is used. |
| Constructor Summary | |
|---|---|
SortOrder(Database database,
int[] index,
int[] sortType)
Construct a new sort order object. |
|
| Method Summary | |
|---|---|
int |
compare(Value[] a,
Value[] b)
Compare two expression lists. |
static int |
compareNull(boolean aNull,
boolean bNull,
int sortType)
Compare two expressions where one of them is NULL. |
int[] |
getIndexes()
Get the column index list. |
int[] |
getSortTypes()
Get the sort order bit masks. |
java.lang.String |
getSQL(Expression[] list,
int visible)
Create the SQL snippet that describes this sort order. |
void |
sort(java.util.ArrayList<Value[]> rows)
Sort a list of rows. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Methods inherited from interface java.util.Comparator |
|---|
equals |
| Field Detail |
|---|
public static final int ASCENDING
public static final int DESCENDING
public static final int NULLS_FIRST
public static final int NULLS_LAST
| Constructor Detail |
|---|
public SortOrder(Database database,
int[] index,
int[] sortType)
database - the databaseindex - the column index listsortType - the sort order bit masks| Method Detail |
|---|
public java.lang.String getSQL(Expression[] list,
int visible)
list - the expression listvisible - the number of columns in the select list
public static int compareNull(boolean aNull,
boolean bNull,
int sortType)
aNull - whether the first expression is nullbNull - whether the second expression is nullsortType - the sort bit mask to use
public int compare(Value[] a,
Value[] b)
compare in interface java.util.Comparator<Value[]>a - the first expression listb - the second expression list
public void sort(java.util.ArrayList<Value[]> rows)
rows - the list of rowspublic int[] getIndexes()
public int[] getSortTypes()
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