/*
* Geopaparazzi - Digital field mapping on Android based devices
* Copyright (C) 2016 HydroloGIS (www.hydrologis.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package eu.geopaparazzi.library.forms.constraints;
import java.util.ArrayList;
import java.util.List;
/**
* A set of constraints.
*
* @author Andrea Antonello (www.hydrologis.com)
*/
public class Constraints {
private List<IConstraint> constraints = new ArrayList<IConstraint>();
/**
* Add a constraint.
*
* @param constraint the constraint to add.
*/
public void addConstraint( IConstraint constraint ) {
if (!constraints.contains(constraint)) {
constraints.add(constraint);
}
}
/**
* Remove a constraint.
*
* @param constraint the constraint to remove.
*/
public void removeConstraint( IConstraint constraint ) {
if (constraints.contains(constraint)) {
constraints.remove(constraint);
}
}
/**
* Checks if all the {@link IConstraint}s in the current set are valid.
*
* @param object the object to check.
* @return <code>true</code> if all the constraints are valid.
*/
public boolean isValid( Object object ) {
if (object == null) {
return false;
}
boolean isValid = true;
for( IConstraint constraint : constraints ) {
constraint.applyConstraint(object);
isValid = isValid && constraint.isValid();
if (!isValid) {
return false;
}
}
return true;
}
/**
* @return description.
*/
@SuppressWarnings("nls")
public String getDescription() {
StringBuilder sb = new StringBuilder();
for( IConstraint constraint : constraints ) {
sb.append(",");
sb.append(constraint.getDescription());
}
if (sb.length() == 0) {
return "";
}
String description = sb.substring(1);
description = "( " + description + " )";
return description;
}
}