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1 /*******************************************************************************
2  * Copyright (c) 2011 Association for Decentralized Information Management in
3  * Industry THTH ry.
4  * All rights reserved. This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License v1.0
6  * which accompanies this distribution, and is available at
7  * http://www.eclipse.org/legal/epl-v10.html
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.db.layer0.adapter.impl;
13
14 import org.simantics.db.ReadGraph;
15 import org.simantics.db.Resource;
16 import org.simantics.db.common.adaption.SimpleContextualAdapter;
17 import org.simantics.db.exception.DatabaseException;
18 import org.simantics.db.layer0.variable.InputValidator;
19 import org.simantics.db.layer0.variable.Variable;
20
21 /**
22  * @author Tuukka Lehtonen
23  */
24 public abstract class LiteralInputValidator extends SimpleContextualAdapter<InputValidator, Variable> {
25
26     @Override
27     public InputValidator adapt(ReadGraph g, Resource source, Variable context) throws DatabaseException {
28         return new InputValidator() {
29             @Override
30             public String isValid(Object newValue) {
31                 if (newValue instanceof String)
32                     return validate((String) newValue);
33                 return "Invalid text: " + newValue;
34             }
35         };
36     }
37
38     protected abstract String validate(String newValue);
39
40 }