X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2FPrimitiveQueryUpdater.java;fp=bundles%2Forg.simantics.browsing.ui%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2FPrimitiveQueryUpdater.java;h=ec4137b739892ba4ea4be337aece132ab5bdbe14;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/PrimitiveQueryUpdater.java b/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/PrimitiveQueryUpdater.java
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+++ b/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/PrimitiveQueryUpdater.java
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+/*******************************************************************************
+ * 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.browsing.ui;
+
+import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey;
+import org.simantics.browsing.ui.exception.NoDataSourceException;
+
+/**
+ * 
+ */
+public interface PrimitiveQueryUpdater {
+
+    /**
+     * A unique object representing a certain exploring context. This must be
+     * different for separate graph explorer instances.
+     * 
+     * @return an object representing the current exploring context
+     */
+    Object getExplorerContext();
+
+    /**
+     * @param <T>
+     * @param clazz
+     * @return <code>null</code> if no data source is available
+     */
+    <T> DataSource<T> tryGetDataSource(Class<T> clazz);
+
+    /**
+     * @param <T>
+     * @param clazz
+     * @return a data source of the requested type.
+     * @throws NoDataSourceException if data source was not found
+     */
+    <T> DataSource<T> getDataSource(Class<T> clazz) throws NoDataSourceException;
+
+    /**
+     * @param <T>
+     * @param context
+     * @param key
+     * @param newResult
+     */
+    <T> void scheduleReplace(NodeContext context, PrimitiveQueryKey<T> key, T newResult);
+    // <T> void scheduleClear(INodeContext context, PrimitiveQueryKey<T> key);
+
+    /**
+     * Tells whether this primitive query updater is disposed or not. Don't use
+     * the updater after it is disposed. Disposal always happens in the UI
+     * thread.
+     * 
+     * @return <code>true</code> if disposed
+     */
+    boolean isDisposed();
+    boolean isShown(NodeContext context);
+    
+    void incRef(NodeContext context);
+    void decRef(NodeContext context);
+
+}
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