/*
* Copyright (C) 2013, VistaTEC or third-party contributors as indicated
* by the @author tags or express copyright attribution statements applied by
* the authors. All third-party contributions are distributed under license by
* VistaTEC.
*
* This file is part of Ocelot.
*
* Ocelot 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 3 of the License, or
* (at your option) any later version.
*
* Ocelot 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 program. If not, write to:
*
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301
* USA
*
* Also, see the full LGPL text here: <http://www.gnu.org/copyleft/lesser.html>
*/
package com.vistatec.ocelot.rules;
import java.awt.Color;
import java.util.Collections;
import java.util.Map;
import javax.swing.border.Border;
import com.vistatec.ocelot.its.model.ITSMetadata;
/**
* Dummy ITS Metadata for empty columns.
*/
public class NullITSMetadata extends ITSMetadata {
private NullITSMetadata() {
super();
}
private static final NullITSMetadata INSTANCE = new NullITSMetadata();
public static NullITSMetadata getInstance() {
return INSTANCE;
}
@Override
public DataCategoryFlag getFlag() {
return NullDataCategoryFlag.getInstance();
}
public static class NullDataCategoryFlag extends DataCategoryFlag {
static final DataCategoryFlag NULL_FLAG = new NullDataCategoryFlag();
public static DataCategoryFlag getInstance() {
return NULL_FLAG;
}
@Override
public Color getFill() {
return null;
}
@Override
public Border getBorder() {
return null;
}
@Override
public String getText() {
return "";
}
@Override
public String toString() {
return "";
}
}
@Override
public Map<DataCategoryField, Object> getFieldValues() {
return Collections.emptyMap();
}
}