1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.common.provider;
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14 import org.simantics.db.AsyncReadGraph;
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15 import org.simantics.db.ReadGraph;
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16 import org.simantics.db.Resource;
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17 import org.simantics.utils.datastructures.Callback;
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20 * An interface for externalizing the logic of retrieving an arbitrary resource
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24 * A {@link ReadGraph} is provided to allow implementations to browse the graph
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25 * in order to retrieve a resource.
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29 * This interface has a synchronously operating counterpart, {@link ResourceProvider}.
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32 * @see ResourceProviders
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33 * @see ResourceProvider
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35 * @author Tuukka Lehtonen
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37 public interface AsyncResourceProvider {
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40 * @param graph an asynchronous graph for retrieving the resource to return
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41 * @param callback a callback that is invoked with the provided resource
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43 void get(AsyncReadGraph graph, Callback<Resource> callback);
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