/*******************************************************************************
* Copyright (c) 2006-2010 Vienna University of Technology,
* Department of Software Technology and Interactive Systems
*
* All rights reserved. This program and the accompanying
* materials are made available under the terms of the
* Apache License, Version 2.0 which accompanies
* this distribution, and is available at
* http://www.apache.org/licenses/LICENSE-2.0
*******************************************************************************/
package eu.planets_project.pp.plato.model.scales;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import eu.planets_project.pp.plato.model.values.FreeStringValue;
import eu.planets_project.pp.plato.model.values.Value;
/**
* This is a free text Scale, brand new, available since 2010.
* Might be obtained from automatic services, such as hardware description info of the
* execution environments of migration services, etc.
* @author Christoph Becker
*
* this scale is of TYPE ORDINAL! but it is NOT RESTRICTED, unlike the OrdinalScale that provides
* a list of possible values.
* Basically it is an priori unrestrained ordinal scale. That means the scale TYPE is Ordinal,
* but the CLASS is not derived from ordinal because it is not restricted (OrdinalScale extends RestrictedScale).
* The Transformer again is ordinal, naturally
* - it maps an ordinal range of distinct values to the target scale.
* The LIST of possible values, however, is derived from the range of actually obtained values.
*
*/
@Entity
@DiscriminatorValue("S")
public class FreeStringScale extends Scale {
public FreeStringScale() {
list = new ArrayList<String>();
}
/**
*
*/
private static final long serialVersionUID = -3878622271778070882L;
@Override
public Value createValue() {
FreeStringValue v = new FreeStringValue();
v.setScale(this);
return v;
}
@Override
public String getDisplayName() {
return "Free text";
}
@Override
public ScaleType getType() {
return ScaleType.ordinal;
}
@Override
public boolean isCorrectlySpecified(String leafName,
List<String> errorMessages) {
return true;
}
@Override
public boolean isEvaluated(Value v) {
if (v == null || ! (v instanceof FreeStringValue)) {
return false;
}
FreeStringValue sv= (FreeStringValue)v;
return (sv.getValue() != null && (!"".equals(sv.getValue())));
}
@Override
public boolean isRestricted() {
return false;
}
public void setPossibleValues(HashSet<String> values) {
list.clear();
list.addAll(values);
Collections.sort(list);
}
}