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package de.lmu.ifi.dbs.elki.data.type;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Class that combines multiple type restrictions into one using an "and" operator.
*
* @author Erich Schubert
*
* @apiviz.composedOf TypeInformation
*/
public class CombinedTypeInformation implements TypeInformation {
/**
* The wrapped type restrictions
*/
private final TypeInformation[] restrictions;
/**
* Constructor.
*
* @param restrictions
*/
public CombinedTypeInformation(TypeInformation... restrictions) {
super();
this.restrictions = restrictions;
}
@Override
public boolean isAssignableFromType(TypeInformation type) {
for (int i = 0; i < restrictions.length; i++) {
if (!restrictions[i].isAssignableFromType(type)) {
return false;
}
}
return true;
}
@Override
public boolean isAssignableFrom(Object other) {
for (int i = 0; i < restrictions.length; i++) {
if (!restrictions[i].isAssignableFrom(other)) {
return false;
}
}
return true;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
for (int i = 0; i < restrictions.length; i++) {
if (i > 0) {
buf.append(" AND ");
}
buf.append(restrictions[i].toString());
}
return buf.toString();
}
}
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