getHints();
-
- /**
- * Get all hints in this context without creating defensive copies in the
- * implementation if possible.
- *
- * Use this only when reading and you know what you're doing.
- *
- * @return the backing map of hints in this context without extra copying if possible
- */
- Map getHintsUnsafe();
-
- /**
- * Get all hints whose key is a subclass of clazz
- * @param
- * @param clazz the class
- * @return key object map
- */
- Map getHintsOfClass(Class clazz);
-
- /**
- * Adds hint listener, which gets events for all hint changes
- *
- * @param listener
- */
- void addHintListener(IHintListener listener);
-
- /**
- * Removes hint listener
- *
- * @param listener
- */
- void removeHintListener(IHintListener listener);
-
- /**
- * Adds hint listener for a specific key
- * @param key
- * @param listener
- */
- void addKeyHintListener(Key key, IHintListener listener);
-
- /**
- * Removes hint listener
- * @param key
- * @param listener
- */
- void removeKeyHintListener(Key key, IHintListener listener);
-
- /**
- * Adds hint listener, which gets events for all hint changes
- *
- * @param threadAccess
- * @param listener
- */
- void addHintListener(IThreadWorkQueue threadAccess, IHintListener listener);
-
- /**
- * Removes hint listener
- *
- * @param threadAccess
- * @param listener
- */
- void removeHintListener(IThreadWorkQueue threadAccess, IHintListener listener);
-
- /**
- * Adds hint listener for a specific key
- * @param threadAccess
- * @param key
- * @param listener
- */
- void addKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener);
-
- /**
- * Removes hint listener
- * @param threadAccess
- * @param key
- * @param listener
- */
- void removeKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener);
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2015 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
+ * Semantum Oy - added getHintsUnsafe
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.utils.datastructures.hints;
+
+import java.util.Map;
+
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+import org.simantics.utils.threads.IThreadWorkQueue;
+
+
+public interface IHintObservable {
+
+ /**
+ * Check if this observable contains a value for the specified hint key.
+ *
+ * @param key the key to check for a value
+ * @return true if there is a value, false otherwise
+ */
+ boolean containsHint(Key key);
+
+ /**
+ * Get hint
+ * @param type of the object bound to the specified key
+ * @param key key
+ * @return the hint or null if does not exist
+ */
+ E getHint(Key key);
+
+ /**
+ * Get all hints in this context
+ * @return a snapshot of all the hints in this context
+ */
+ Map getHints();
+
+ /**
+ * Get all hints in this context without creating defensive copies in the
+ * implementation if possible.
+ *
+ * Use this only when reading and you know what you're doing.
+ *
+ * @return the backing map of hints in this context without extra copying if possible
+ */
+ Map getHintsUnsafe();
+
+ /**
+ * Get all hints whose key is a subclass of clazz
+ * @param
+ * @param clazz the class
+ * @return key object map
+ */
+ Map getHintsOfClass(Class clazz);
+
+ /**
+ * Adds hint listener, which gets events for all hint changes
+ *
+ * @param listener
+ */
+ void addHintListener(IHintListener listener);
+
+ /**
+ * Removes hint listener
+ *
+ * @param listener
+ */
+ void removeHintListener(IHintListener listener);
+
+ /**
+ * Adds hint listener for a specific key
+ * @param key
+ * @param listener
+ */
+ void addKeyHintListener(Key key, IHintListener listener);
+
+ /**
+ * Removes hint listener
+ * @param key
+ * @param listener
+ */
+ void removeKeyHintListener(Key key, IHintListener listener);
+
+ /**
+ * Adds hint listener, which gets events for all hint changes
+ *
+ * @param threadAccess
+ * @param listener
+ */
+ void addHintListener(IThreadWorkQueue threadAccess, IHintListener listener);
+
+ /**
+ * Removes hint listener
+ *
+ * @param threadAccess
+ * @param listener
+ */
+ void removeHintListener(IThreadWorkQueue threadAccess, IHintListener listener);
+
+ /**
+ * Adds hint listener for a specific key
+ * @param threadAccess
+ * @param key
+ * @param listener
+ */
+ void addKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener);
+
+ /**
+ * Removes hint listener
+ * @param threadAccess
+ * @param key
+ * @param listener
+ */
+ void removeKeyHintListener(IThreadWorkQueue threadAccess, Key key, IHintListener listener);
+
+}