org.apache.derby.impl.sql.compile
Class ColumnOrdering

java.lang.Object
  org.apache.derby.impl.sql.compile.ColumnOrdering

 class ColumnOrdering
extends java.lang.Object

Field Summary

private java.util.ArrayList	columns
(package private) int	myDirection
private java.util.ArrayList	tables

Constructor Summary

ColumnOrdering(int direction)

Method Summary

(package private) void	addColumn(int tableNumber, int columnNumber) Add a column in a table to this ColumnOrdering
(package private) ColumnOrdering	cloneMe() Return a clone of this ColumnOrdering
(package private) boolean	contains(int tableNumber, int columnNumber) Does this ColumnOrdering contain the given column?
(package private) int	direction() Get the direction of this ColumnOrdering
(package private) boolean	empty() Tell whether this ColumnOrdering has no elements.
(package private) boolean	hasAnyOtherTable(int tableNumber) Is there any table other than the given one in this ColumnOrdering?
(package private) boolean	hasTable(int tableNumber) Is the given table number in this ColumnOrdering?
(package private) boolean	ordered(int direction, int tableNumber, int columnNumber) Does this ColumnOrdering contain the given column in the given table in the right direction?
(package private) void	removeColumns(int tableNumber) Remove all columns with the given table number
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

myDirection

int myDirection

columns

private final java.util.ArrayList columns

tables

private final java.util.ArrayList tables

Constructor Detail

ColumnOrdering

ColumnOrdering(int direction)

Parameters:

direction - See RowOrdering for possible values

Method Detail

ordered

boolean ordered(int direction,
                int tableNumber,
                int columnNumber)

Does this ColumnOrdering contain the given column in the given table in the right direction?

Parameters:

direction - See RowOrdering for possible values

tableNumber - The number of the table in question

columnNumber - The column number in the table (one-based)

Returns:

true if the column is found here in the right direction

contains

boolean contains(int tableNumber,
                 int columnNumber)

Does this ColumnOrdering contain the given column?

Parameters:

tableNumber - The number of table in question

columnNumber - The column number in the table (one-based)

Returns:

true if the column is found here in the right direction

direction

int direction()

Get the direction of this ColumnOrdering

addColumn

void addColumn(int tableNumber,
               int columnNumber)

Add a column in a table to this ColumnOrdering

Parameters:

tableNumber - The number of table in question

columnNumber - The column number in the table (one-based)

removeColumns

void removeColumns(int tableNumber)

Remove all columns with the given table number

empty

boolean empty()

Tell whether this ColumnOrdering has no elements.

cloneMe

ColumnOrdering cloneMe()

Return a clone of this ColumnOrdering

hasTable

boolean hasTable(int tableNumber)

Is the given table number in this ColumnOrdering?

hasAnyOtherTable

boolean hasAnyOtherTable(int tableNumber)

Is there any table other than the given one in this ColumnOrdering?

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object