/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.mongodb;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import com.mongodb.BasicDBObject;
public class IDRef implements Cloneable {
LinkedHashMap<String, Object> pk = new LinkedHashMap<String, Object>();
public void addColumn(String key, Object value) {
// only add if not added before
if (this.pk.get(key) == null) {
this.pk.put(key, value);
}
}
public List<String> getKeys(){
return new ArrayList<String>(this.pk.keySet());
}
public Object getValue() {
if (this.pk.size() == 1) {
for (String key:this.pk.keySet()) {
return this.pk.get(key);
}
}
BasicDBObject value = new BasicDBObject();
for (String key:this.pk.keySet()) {
value.append(key, this.pk.get(key));
}
return value;
}
@Override
public String toString() {
Object obj = getValue();
if (obj != null) {
return obj.toString();
}
return null;
}
@Override
public IDRef clone() {
IDRef clone = new IDRef();
clone.pk.putAll(this.pk);
return clone;
}
}