| java.lang.Object
 org.apache.derby.impl.sql.execute.RowUtil
| RowUtil | | public class RowUtil (Code) | | Utility class manipulating rows.
Note: this class is public so it may be used by Replication execution
code. It is basically not public.
|
| Method Summary | |
| public static void | copyCloneColumns(ExecRow to, ExecRow from, int count)
Clone an ExecRow's columns and place the coloned columns in another
ExecRow. | | public static void | copyRefColumns(ExecRow to, ExecRow from)
Copy references for an ExecRow's columns to another ExecRow. | | public static void | copyRefColumns(ExecRow to, ExecRow from, int count)
Copy references for an ExecRow's columns to another ExecRow. | | public static void | copyRefColumns(ExecRow to, ExecRow from, int start, int count)
Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
from - Get the column references from here.
Parameters:
start - The 0 based index of the first column to copy. | | public static void | copyRefColumns(ExecRow to, int toStart, ExecRow from, int fromStart, int count)
Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
toStart - The 0-based index of the first column to replace.
Parameters:
from - Get the column references from here.
Parameters:
fromStart - The 0 based index of the first column to copy. | | public static void | copyRefColumns(ExecRow to, ExecRow from, int[] positions)
Copy references for an ExecRow's columns to another ExecRow. | | public static void | copyRefColumns(ExecRow to, ExecRow from, FormatableBitSet positions)
Copy references for an ExecRow's columns to another ExecRow.
For copying from a compact array to a reconstituted array.
E.g. | | public static void | copyRefColumns(ExecRow setMe)
Empty columns -- i.e. | | public static ExecIndexRow | getEmptyIndexRow(int columnCount, ContextManager cm)
Get an empty ExecIndexRow. | | public static ExecRow | getEmptyValueRow(int columnCount, LanguageConnectionContext lcc)
Get an empty ExecRow.
Parameters:
columnCount - the number of columns in the row. | | public static boolean | inAscendingOrder(int[] colMap)
| | public static String | intArrayToString(int[] colMap)
| | public static FormatableBitSet | shift(FormatableBitSet bitSet, int n)
Shift a FormatableBitSet N bits toward the zero end.
e.g. | | public static String | toString(ExecRow row)
| | public static String | toString(Object[] objs)
| | public static String | toString(ExecRow row, int startPoint, int endPoint)
| | public static String | toString(Object[] objs, int startPoint, int endPoint)
| | public static String | toString(ExecRow row, int[] positions)
| | public static String | toString(Object[] objs, int[] positions)
|
| copyCloneColumns | | public static void copyCloneColumns(ExecRow to, ExecRow from, int count)(Code) | | Clone an ExecRow's columns and place the coloned columns in another
ExecRow.
Parameters:
to - Place the cloned columns here.
Parameters:
from - Get the columns to clone here.
Parameters:
count - Clone this number of columns. |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, ExecRow from)(Code) | | Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
from - Get the column references from here. |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, ExecRow from, int count) throws StandardException(Code) | | Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
from - Get the column references from here.
Parameters:
count - Copy this number of column references. |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, ExecRow from, int start, int count) throws StandardException(Code) | | Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
from - Get the column references from here.
Parameters:
start - The 0 based index of the first column to copy.
Parameters:
count - Copy this number of column references. |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, int toStart, ExecRow from, int fromStart, int count) throws StandardException(Code) | | Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
toStart - The 0-based index of the first column to replace.
Parameters:
from - Get the column references from here.
Parameters:
fromStart - The 0 based index of the first column to copy.
Parameters:
count - Copy this number of column references. |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, ExecRow from, int[] positions) throws StandardException(Code) | | Copy references for an ExecRow's columns to another ExecRow.
Parameters:
to - Place the column references here.
Parameters:
from - Get the column references from here.
Parameters:
positions - array of 1-based column ids to copy from "from" to "to" |
| copyRefColumns | | public static void copyRefColumns(ExecRow to, ExecRow from, FormatableBitSet positions) throws StandardException(Code) | | Copy references for an ExecRow's columns to another ExecRow.
For copying from a compact array to a reconstituted array.
E.g. if positions = {2, 4}, and from = {666, 777} then
to => {null, 666, null, 777}. Will only go as far as to.getArray().length.
Parameters:
to - Place the column references here. Sparse array
Parameters:
from - Get the column references from here. Compact array
Parameters:
positions - array of 1-based column ids to copy from "from" to "to" |
| copyRefColumns | | public static void copyRefColumns(ExecRow setMe) throws StandardException(Code) | | Empty columns -- i.e. make them refer to a java null.
This is useful to remove dangling references to a column.
Parameters:
setMe - Set columns in this storable to be empty. |
| getEmptyIndexRow | | public static ExecIndexRow getEmptyIndexRow(int columnCount, ContextManager cm)(Code) | | Get an empty ExecIndexRow.
Parameters:
columnCount - the number of columns in the row.
Parameters:
cm - Current ContextManager the row. |
| getEmptyValueRow | | public static ExecRow getEmptyValueRow(int columnCount, LanguageConnectionContext lcc)(Code) | | Get an empty ExecRow.
Parameters:
columnCount - the number of columns in the row. the row. |
| inAscendingOrder | | public static boolean inAscendingOrder(int[] colMap)(Code) | | |
| intArrayToString | | public static String intArrayToString(int[] colMap)(Code) | | intArrayToString
Parameters:
colMap - the int array the string |
| shift | | public static FormatableBitSet shift(FormatableBitSet bitSet, int n)(Code) | | Shift a FormatableBitSet N bits toward the zero end.
e.g. shift({2,4}) -> {1,3}.
Parameters:
bitSet - the bit set
Parameters:
n - the number of bits to shift a new FormatableBitSet with the shifted result |
| toString | | public static String toString(ExecRow row)(Code) | | toString
Parameters:
row - the row the string |
| toString | | public static String toString(Object[] objs)(Code) | | toString
Parameters:
objs - the row array the string |
| toString | | public static String toString(ExecRow row, int startPoint, int endPoint)(Code) | | toString
Parameters:
row - the row
Parameters:
startPoint - 0 based start point in row array, inclusive
Parameters:
endPoint - 0 based end point in row array, inclusive the string |
| toString | | public static String toString(Object[] objs, int startPoint, int endPoint)(Code) | | toString
Parameters:
objs - the row array
Parameters:
startPoint - 0 based start point in row array, inclusive
Parameters:
endPoint - 0 based end point in row array, inclusive the string |
| toString | | public static String toString(ExecRow row, int[] positions)(Code) | | toString
Parameters:
row - the row
Parameters:
positions - 1 based array of positions the string |
| toString | | public static String toString(Object[] objs, int[] positions)(Code) | | toString
Parameters:
objs - the row array
Parameters:
positions - 1 based array of positions the string |
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