/*******************************************************************************
 * Copyright (c) 2007, 2010 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.common.primitiverequest;

import org.simantics.databoard.Bindings;
import org.simantics.databoard.binding.Binding;
import org.simantics.databoard.type.Datatype;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.request.ResourceRead;
import org.simantics.db.exception.DatabaseException;

final public class DatatypeBinding extends ResourceRead<Binding> {

	final static Binding DATA_TYPE_BINDING_INTERNAL = Bindings.getBindingUnchecked(Datatype.class);

    public DatatypeBinding(Resource resource) {
        super(resource);
    }

    @Override
    public Binding perform(ReadGraph graph) throws DatabaseException {
        Datatype datatype = graph.getValue(resource, DATA_TYPE_BINDING_INTERNAL);
        return Bindings.getBinding(datatype);
    }

}