-/*******************************************************************************
- * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
- * Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-package org.simantics.db.layer0.variable;
-
-import org.simantics.databoard.Datatypes;
-import org.simantics.databoard.binding.StringBinding;
-import org.simantics.databoard.binding.error.BindingException;
-import org.simantics.db.Session;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.layer0.request.ResourceURIToVariable;
-import org.simantics.db.layer0.request.VariableURI;
-
-/**
- * This class binds Variable to StringType
- *
- * @author toni.kalajainen
- */
-public class VariableBinding extends StringBinding {
-
- Session session;
-
- public VariableBinding(Session session) {
- super(Datatypes.STRING);
- this.session = session;
- }
-
- @Override
- public boolean isImmutable() {
- return true;
- }
-
- @Override
- public Object create(String value) throws BindingException {
- if ( session == null ) throw new BindingException("Cannot create Variable without a Session");
- try {
- return session.sync( new ResourceURIToVariable( value ) );
- } catch (DatabaseException e) {
- throw new BindingException(e);
- }
- }
-
- @Override
- public String getValue(Object o) throws BindingException {
- if ( session == null ) throw new BindingException("Cannot create Variable without a Session");
- if (o instanceof Variable==false) throw new BindingException("Not a variable");
- Variable v = (Variable) o;
- try {
- return (String) session.sync( new VariableURI( v ) );
- } catch (DatabaseException e) {
- throw new BindingException( e );
- }
- }
-
- @Override
- public void setValue(Object o, String newValue) throws BindingException {
- throw new BindingException("Cannot set URI to Variable. URI is immutable");
- }
-
- @Override
- public boolean isInstance(Object obj) {
- return obj instanceof Variable;
- }
-
-}