/*
*
* SchemaCrawler
* http://sourceforge.net/projects/schemacrawler
* Copyright (c) 2000-2012, Sualeh Fatehi.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
package schemacrawler.crawl;
import schemacrawler.schema.Column;
import schemacrawler.schema.ForeignKeyColumnMap;
/**
* Represents a single column mapping from a primary key column to a
* foreign key column.
*
* @author Sualeh Fatehi
*/
final class MutableForeignKeyColumnMap
implements ForeignKeyColumnMap
{
private static final long serialVersionUID = 3689073962672273464L;
private Column foreignKeyColumn;
private Column primaryKeyColumn;
private int keySequence;
/**
* {@inheritDoc}
*/
@Override
public int compareTo(final ForeignKeyColumnMap other)
{
if (other == null)
{
return -1;
}
int comparison = 0;
if (comparison == 0)
{
comparison = getKeySequence() - other.getKeySequence();
}
// Note: For the primary key and foreign key columns, compare by
// name.
if (comparison == 0)
{
comparison = getPrimaryKeyColumn().getFullName().compareTo(other
.getPrimaryKeyColumn().getFullName());
}
if (comparison == 0)
{
comparison = getForeignKeyColumn().getFullName().compareTo(other
.getForeignKeyColumn().getFullName());
}
return comparison;
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.ForeignKeyColumnMap#getForeignKeyColumn()
*/
@Override
public Column getForeignKeyColumn()
{
return foreignKeyColumn;
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.ForeignKeyColumnMap#getKeySequence()
*/
@Override
public int getKeySequence()
{
return keySequence;
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.ForeignKeyColumnMap#getPrimaryKeyColumn()
*/
@Override
public Column getPrimaryKeyColumn()
{
return primaryKeyColumn;
}
void setForeignKeyColumn(final Column foreignKeyColumn)
{
this.foreignKeyColumn = foreignKeyColumn;
}
void setKeySequence(final int keySequence)
{
this.keySequence = keySequence;
}
void setPrimaryKeyColumn(final Column primaryKeyColumn)
{
this.primaryKeyColumn = primaryKeyColumn;
}
}