-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.g2d.element;\r
-\r
-import java.util.HashMap;\r
-import java.util.Map;\r
-\r
-/**\r
- * An IElementClassProvider provides an abstract way of requesting an\r
- * ElementClass for a specifiable key. The key is purposefully left abstract.\r
- * \r
- * @author Tuukka Lehtonen\r
- * \r
- * @see IElementClassProvider\r
- * @see ElementClasses\r
- */\r
-public class ElementClassProviders {\r
-\r
- /**\r
- * Create an element class provider that provides only a single static\r
- * ElementClass regardless of the specified key argument.\r
- * \r
- * @param clazz the static element class to provide\r
- * @return a provider for the specified element class\r
- */\r
- public static IElementClassProvider staticProvider(final ElementClass clazz) {\r
- return new IElementClassProvider() {\r
- @Override\r
- public ElementClass get(Object key) {\r
- return clazz;\r
- }\r
- };\r
- }\r
-\r
- /**\r
- * Create an element class provider that based on the specified map. The\r
- * provider will directly access the map with the received keys. The\r
- * argument map will be copied.\r
- * \r
- * @param map the map to use for element class provision\r
- * @return <code>null</code> if there is no provider for the specified key\r
- */\r
- public static IElementClassProvider mappedProvider(Map<Object, ElementClass> map) {\r
- // Copy the map as a safety measure\r
- final Map<Object, ElementClass> copy = new HashMap<Object, ElementClass>(map);\r
- return new IElementClassProvider() {\r
- @Override\r
- public ElementClass get(Object key) {\r
- return copy.get(key);\r
- }\r
- };\r
- }\r
-\r
- /**\r
- * Does the same as {@link #mappedProvider(Map)}, the map is simply provided\r
- * differently. The specified array must contain\r
- * <code>[key, ElementClass, key, ElementClass, ...]</code>.\r
- * \r
- * @param map the map to use for element class provision\r
- * @return <code>null</code> if there is no provider for the specified key\r
- */\r
- public static IElementClassProvider mappedProvider(Object... keyClassPairs) {\r
- if (keyClassPairs.length % 2 != 0)\r
- throw new IllegalArgumentException();\r
- Map<Object, ElementClass> map = new HashMap<Object, ElementClass>();\r
- int n = keyClassPairs.length / 2;\r
- for (int i = 0; i < n; ++i) {\r
- Object key = keyClassPairs[i * 2];\r
- Object elementClass = keyClassPairs[i*2+1];\r
- if (!(elementClass instanceof ElementClass))\r
- throw new IllegalArgumentException("not an ElementClass instance: " + elementClass);\r
- map.put(key, (ElementClass) elementClass);\r
- }\r
- return mappedProvider(map);\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * 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.g2d.element;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * An IElementClassProvider provides an abstract way of requesting an
+ * ElementClass for a specifiable key. The key is purposefully left abstract.
+ *
+ * @author Tuukka Lehtonen
+ *
+ * @see IElementClassProvider
+ * @see ElementClasses
+ */
+public class ElementClassProviders {
+
+ /**
+ * Create an element class provider that provides only a single static
+ * ElementClass regardless of the specified key argument.
+ *
+ * @param clazz the static element class to provide
+ * @return a provider for the specified element class
+ */
+ public static IElementClassProvider staticProvider(final ElementClass clazz) {
+ return new IElementClassProvider() {
+ @Override
+ public ElementClass get(Object key) {
+ return clazz;
+ }
+ };
+ }
+
+ /**
+ * Create an element class provider that based on the specified map. The
+ * provider will directly access the map with the received keys. The
+ * argument map will be copied.
+ *
+ * @param map the map to use for element class provision
+ * @return <code>null</code> if there is no provider for the specified key
+ */
+ public static IElementClassProvider mappedProvider(Map<Object, ElementClass> map) {
+ // Copy the map as a safety measure
+ final Map<Object, ElementClass> copy = new HashMap<Object, ElementClass>(map);
+ return new IElementClassProvider() {
+ @Override
+ public ElementClass get(Object key) {
+ return copy.get(key);
+ }
+ };
+ }
+
+ /**
+ * Does the same as {@link #mappedProvider(Map)}, the map is simply provided
+ * differently. The specified array must contain
+ * <code>[key, ElementClass, key, ElementClass, ...]</code>.
+ *
+ * @param map the map to use for element class provision
+ * @return <code>null</code> if there is no provider for the specified key
+ */
+ public static IElementClassProvider mappedProvider(Object... keyClassPairs) {
+ if (keyClassPairs.length % 2 != 0)
+ throw new IllegalArgumentException();
+ Map<Object, ElementClass> map = new HashMap<Object, ElementClass>();
+ int n = keyClassPairs.length / 2;
+ for (int i = 0; i < n; ++i) {
+ Object key = keyClassPairs[i * 2];
+ Object elementClass = keyClassPairs[i*2+1];
+ if (!(elementClass instanceof ElementClass))
+ throw new IllegalArgumentException("not an ElementClass instance: " + elementClass);
+ map.put(key, (ElementClass) elementClass);
+ }
+ return mappedProvider(map);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff