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.browsing.ui.graph.impl.contributor.labeler;
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14 import org.simantics.browsing.ui.BuiltinKeys;
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15 import org.simantics.browsing.ui.CheckedState;
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16 import org.simantics.browsing.ui.NodeContext;
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17 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
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18 import org.simantics.browsing.ui.Tester;
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19 import org.simantics.browsing.ui.BuiltinKeys.CheckedStateKey;
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20 import org.simantics.browsing.ui.content.CheckedStateFactory;
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21 import org.simantics.browsing.ui.content.Contributor;
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22 import org.simantics.browsing.ui.graph.impl.contribution.CheckedStateContributionImpl;
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23 import org.simantics.db.ReadGraph;
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24 import org.simantics.db.exception.DatabaseException;
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25 import org.simantics.utils.ReflectionUtils;
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27 abstract public class CheckedStateContributorImpl<T> implements Contributor<CheckedStateFactory> {
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29 abstract public CheckedState getState(ReadGraph graph, T input) throws DatabaseException;
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31 final private Class<?> clazz;
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34 public Tester getNodeContextTester() {
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38 public CheckedStateContributorImpl() {
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39 clazz = ReflectionUtils.getSingleParameterType(getClass());
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42 public CheckedStateContributorImpl(Class<?> clazz) {
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47 public CheckedStateFactory getFactory() {
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49 return new CheckedStateFactory() {
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52 public CheckedState create(final PrimitiveQueryUpdater updater, NodeContext context, final CheckedStateKey key) {
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54 CheckedStateContributionImpl contrib = new CheckedStateContributionImpl(updater, context, key) {
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56 @SuppressWarnings("unchecked")
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58 public CheckedState getState(ReadGraph graph, NodeContext context) throws DatabaseException {
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59 T input = (T)context.getConstant(BuiltinKeys.INPUT);
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60 return CheckedStateContributorImpl.this.getState(graph, input);
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65 return contrib.getState();
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74 public Class<?> getInputClass() {
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