/*
*
* SchemaCrawler
* http://sourceforge.net/projects/schemacrawler
* Copyright (c) 2000-2011, 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.tools.analysis;
import java.util.ArrayList;
import java.util.List;
import schemacrawler.schema.Index;
import schemacrawler.schema.IndexColumn;
import schemacrawler.schema.Table;
import sf.util.ObjectToString;
public class LinterTableWithNullColumnsInIndex
extends BaseLinter<Table>
{
public void lint(final Table table)
{
if (table != null)
{
final Index[] nullableColumnsInUniqueIndex = findNullableColumnsInUniqueIndex(table
.getIndices());
if (nullableColumnsInUniqueIndex.length > 0)
{
addLint(table, new Lint("unique indices with nullable columns",
nullableColumnsInUniqueIndex)
{
private static final long serialVersionUID = -1954217739621236510L;
@Override
public String getLintValueAsString()
{
final List<String> indexNames = new ArrayList<String>();
for (final Index index: nullableColumnsInUniqueIndex)
{
indexNames.add(index.getName());
}
return ObjectToString.toString(indexNames);
}
});
}
}
}
private Index[] findNullableColumnsInUniqueIndex(final Index[] indices)
{
final List<Index> nullableColumnsInUniqueIndex = new ArrayList<Index>();
for (final Index index: indices)
{
if (index.isUnique())
{
final IndexColumn[] columns = index.getColumns();
for (final IndexColumn indexColumn: columns)
{
if (indexColumn.isNullable())
{
nullableColumnsInUniqueIndex.add(index);
break;
}
}
}
}
return nullableColumnsInUniqueIndex
.toArray(new Index[nullableColumnsInUniqueIndex.size()]);
}
}