Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / binding / impl / ArrayListBinding.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/ArrayListBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/ArrayListBinding.java
new file mode 100644 (file)
index 0000000..8769a51
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/ArrayListBinding.java
@@ -0,0 +1,154 @@
+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  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.databoard.binding.impl;
+
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Iterator;\r
+import java.util.List;\r
+\r
+import org.simantics.databoard.binding.ArrayBinding;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.type.ArrayType;\r
+
+/**
+ * CollectionListBinding binds ArrayType to java.util.List and \r
+ * instantiates java.util.ArrayList.
+ *
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
+ */
+public class ArrayListBinding extends ArrayBinding {
+\r
+       public ArrayListBinding(Binding componentBinding) {\r
+               this(new ArrayType(componentBinding.type()), componentBinding);\r
+       }\r
+       
+       public ArrayListBinding(ArrayType type, Binding componentBinding) {
+               super(type, componentBinding);
+               if (type==null) throw new IllegalArgumentException("null arg");
+               this.type = type;
+       }
+       
+       @Override
+       public Object create() {
+               return new ArrayList<Object>();
+       }
+       
+       @Override
+       public Object create(Collection<Object> collection) throws BindingException {
+               return new ArrayList<Object>( collection );
+       }
+       
+       /**
+        * Create new ArrayList
+        */
+       @Override
+       public Object create(int length, Iterator<Object> values) {
+               ArrayList<Object> array = new ArrayList<Object>(length);
+               while (values.hasNext())
+                       array.add(values.next());
+               return array;
+       }
+
+       public Object create(Object[] values) {
+               ArrayList<Object> array = new ArrayList<Object>(values.length);
+               for (int i=0; i<values.length; i++)
+                       array.add(values[i]);
+               return array;
+       }\r
+       \r
+       
+       @SuppressWarnings("unchecked")
+       @Override
+       public Object get(Object array, int index) throws BindingException {
+               if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", java.util.List expected");
+               List<Object> list = (List<Object>) array;
+               return list.get(index);
+       }\r
+       
+       @SuppressWarnings("unchecked")\r
+    @Override
+       public void getAll(Object array, Object[] result) throws BindingException {
+               List<Object> list = (List<Object>) array;
+               for (int i=0; i<list.size(); i++)
+                       result[i] = list.get(i);
+       }
+       
+       @SuppressWarnings("unchecked")\r
+    @Override
+       public void set(Object array, int index, Object value)
+                       throws BindingException {
+               List<Object> list = (List<Object>) array;
+               list.set(index, value);
+       }
+
+       @SuppressWarnings("unchecked")\r
+    @Override
+       public void add(Object array, int index, Object element)
+                       throws BindingException, IndexOutOfBoundsException {
+               List<Object> list = (List<Object>) array;
+               list.add(index, element);
+       }
+       
+       @SuppressWarnings("unchecked")
+       @Override
+       public void remove(Object array, int index, int count) throws BindingException {
+               List<Object> list = (List<Object>) array;               
+               for (int i=0; i<count; i++)
+                       list.remove(index);
+       }
+       
+       @SuppressWarnings("unchecked")
+       @Override
+       public int size(Object array) throws BindingException {         
+               if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", java.util.List expected");           
+               List<Object> list = (List<Object>) array;
+               return list.size();
+       }
+
+       @Override
+       public boolean isInstance(Object obj) {
+               return obj instanceof List<?>;
+       }\r
+\r
+       @Override\r
+       public void setSize(Object array, int newSize) throws BindingException {\r
+               @SuppressWarnings("unchecked")\r
+               List<Object> list = (List<Object>) array;\r
+               int oldSize = list.size();\r
+               if (oldSize==newSize) return;\r
+               \r
+               if (oldSize>newSize) {\r
+                       for (int i=oldSize-1; i>=newSize; i--)\r
+                               list.remove(i);\r
+                       return;\r
+               } \r
+               \r
+               int c = newSize - oldSize;\r
+               for (int i=0; i<c; i++) {\r
+                       list.add( componentBinding.createDefault() );\r
+               }\r
+       }               \r
+       \r
+       @Override\r
+       public boolean isImmutable() {\r
+               return false;\r
+       }\r
+       \r
+       @Override\r
+       public boolean isResizable() {\r
+               return true;\r
+       }
+       
+}
+